M1.1/EVA 3/Dual-Z/Custom enclosure

[tiny bramble]

Wiggle wiggle

@potent stone Dunno if you saw this question what with the goofy gifs and such.

[potent stone]

yes, my concers is that all those screw binds to a not so stiff panel, and overtime it might get damages if the cable keeps pushing 🤔

[tiny bramble]

Ahhh, I see

[potent stone]

I know the cable will move alot, every time it homes it will try to push the panel out

[tiny bramble]

What about a zip tie anchor on the inside? Keep it from slipping around.

[potent stone]

kep it from wobbling and touch the belt close by

[tiny bramble]

Yeah. Could add another on the outside, too

[potent stone]

it's probably fine, you are right, I can see if I have plexiglass cutout that I can bolt all over the place to stiffen up the panel

[tiny bramble]

And you can go back and replace it if it becomes an issue

[potent stone]

also I have it printed already.. I am amazed how an enclosed printer is more reliable than an open air one... it rarely fails now

[tiny bramble]

SO TRUE

Controlled environments are good

[potent stone]

also, my major breaktrough with asa was to increase the cooling, from 20 to 60... it doesn't warp anymore!

[tiny bramble]

Vengeful harped on that enough that I tried it. My prints look so much better.

[tiny bramble]

That was close. Look at the heater cartridge.

[feral prawn]

thermal runaway?

[tiny bramble]

Close. The heating element definitely got hotter than it should, but never lost contact with the heater block

[tiny bramble]

Got ALMOST all of the plastic off with a heat gun

[potent stone]

Ohh, poor Oscar! what happened?

[tiny bramble]

He ate some trash, prolly. Poor dude lives in a garbage can.

https://tenor.com/view/trash-oscar-the-grouch-gif-26259439

Ordered a new heat block. I completed borked the old one trying to clean it. Stripped a screw possibly and can't get some of the plastic out anyway.

[feral prawn]

https://music.youtube.com/watch?v=uAutt16Am3c

this gets in my mind every time you talk about big bird

[tiny bramble]

That song is a classic

"Anybody with heart votes love..."

Well, spent $30 on too much ethyl acetate because Home Depot only carries A GALLON

Got the rest of the plastic off, only to have the grub screws ruined and be unusable.

[feral prawn]

how much is that in liters anyway

[tiny bramble]

3.78541

Which I never knew before.

[short cove]

That’s a red lizard hotend?

[tiny bramble]

Yep

I already ordered another heater block as a spare, since I had a suspicion this might be unrepairable

[feral prawn]

wait that thing dissolves PLA right

[tiny bramble]

Kinda yes, kinda no. It modifies it so that it softens and separates slowly.

It's squishy

[feral prawn]

might get some

to properly clean my current crazy

meanwhile I think I might try to sell the spare and buy a rapido

why do I keep having ideas to spend more money

[tiny bramble]

Use acetone if it's not PLA

[feral prawn]

it is

a lot of PLA a lot of PETG

but mostly pla

[tiny bramble]

Lemme see about PETG

[feral prawn]

or any acid if it works

[tiny bramble]

Apparently it kinda does, kinda doesn't.

Can always mix acetone and ethyl acetate

[feral prawn]

its easier to get Hydrochloric acid than ethyl acetate

or sulphuric

[tiny bramble]

Dafuq

It's sold as an alternative to MEK here, lol

and MEK is an alternative to something even fiercer that you can also buy, because 'murica?

[feral prawn]

I'm up for that

chemicals ❤️

can melt your hand? sure

can give you cancer sure

just get a lot of PPE

[tiny bramble]

https://en.wikipedia.org/wiki/Tetrahydrofuran

That's some cancer-causing, plastic-dissolving stuff right there.

[feral prawn]

looks fun

[tiny bramble]

Mayyyybe not

[feral prawn]

at least it's not FOOF

[tiny bramble]

Had to look that up. Now fascinated.

[feral prawn]

read this one https://www.science.org/content/blog-post/things-i-won-t-work-dioxygen-difluoride

a fun read

[tiny bramble]

LOLOL

[tiny bramble]

That was rollicking.

I recognize the author from somewhere else.

[potent stone]

only thing, acid and metal are not best friend, so if the heating block contains steel, and you use sulphuric acid, it will coat it with weird stuff

[potent stone]

you can check the non-acetone nail polish

it should that stuff

[tiny bramble]

Uhhhh, so where are we.

1. Big Bird needs his new OmniBox.
2. Big Bird needs a new CAN toolhead
3. Might also "borrow" his hotend for Oscar
4. Oscar needs a new hotend
5. Oscar also needs a new trihorn, since the explosion yesterday damaged the horns.
6. Need to get the MW SE-450-24 PSU out

[tiny bramble]

I'll leave Oscar off for now since I need to get underneath to get that power supply out (#6), and I need it for the OmniBox.

Eh, I need more sleep first.

[tiny bramble]

Added a wire anchor instead of fussing with a cable chain.

This is looking from the back left

[tiny bramble]

Big Bird is back up.

[tiny bramble]

The new Z axis carriage/joint is very, very compact.

[tiny bramble]

Inserts are done for Big Bird's new OmniBox.

[tiny bramble]

The SE-450 CAD is off by 3mm. Sigh.

[feral prawn]

doesn't work regardless?

[tiny bramble]

It means the mount is too wide by 3mm and won't fit in the case 😆

[feral prawn]

sand it down?

[tiny bramble]

Nah. I need to make sure the design fits correctly, so I removed 3mm from one side and am reprinting it.

[tiny bramble]

Fiiiiits

[feral prawn]

noiiiiice

[feral prawn]

so many HSI

[tiny bramble]

inserts everywhere, like rain

Or oprah winfrey giving out free junk

https://tenor.com/view/doorhanger-kennedy-gif-18200977

The extrusions I ordered came. I'm going to swap Big Bird's dual Z arrangement, get him running, then go back and give Oscar dual Z, too.

I've already tapped the extrusions and am printing the last of the parts

[feral prawn]

Big Bird spreads the word

[tiny bramble]

Everybody with a heart votes love!

[tiny bramble]

Frakking sirens. It hails every other day now.

[feral prawn]

want some heat?

we got it

38.8C - 101.84F

[tiny bramble]

Just below that before the storm cooled it off. It's a nasty, nasty heat, too. 50% humidity at 35C.

[feral prawn]

well crap

[tiny bramble]

Been like this for weeks, and all the heat and humidity is producing crazy storms.

[feral prawn]

pretty dry here

[tiny bramble]

tbh, I'm enjoying the storms, but not the humidity 😆

[feral prawn]

like 31% during the day

[tiny bramble]

Oh, see that I can do any day.

[feral prawn]

but at night...

[tiny bramble]

What's the temp drop to?

Must have cool nights

[feral prawn]

let me get both on the chart

cant chart them at once but here it is

[tiny bramble]

Wow. No wonder the humidity pops.

It's about 27C at night here.

[feral prawn]

it's going to be muiltiple days near 40 during the day now

[tiny bramble]

Every year Europe's heat waves seem to get worse, man

[feral prawn]

today I can already feel it worse

a lot cooler inside

those windows are paying off

[tiny bramble]

Oh wow. Can see when the AC kicks in

[feral prawn]

yep

but the rise is pretty slow

[tiny bramble]

I'm surprised you made it that late in the morning to have to need it 😆

[feral prawn]

we slept late today

bedroom is automatic

kicks in at 23.75

agressively cools for 20min and shuts down, less electricity and still comfortable

[tiny bramble]

I wish I were in to home automation and such. Just not my bailiwick

[feral prawn]

speaking of automation time to add the safety one to the printer

[tiny bramble]

New OmniBox with 450W PSU for Big Bird.

[tiny bramble]

Working on the EBB42 replacement for Big Bird

[tiny bramble]

Big Bird lives!

Now to tear him apart and replace the Z axis update the E34M1 Front module

[tiny bramble]

True story: I bought extrusions that came with 5mm holes in the ends, not 4.2mm. IOW, I cannot tap the ends; the taps do not take.

Thankfully it only affected the cheapest ones I bought (300mm extrusions)

The 400mm 4020s are fine

Still, ugh.

Well, it occurs to me that Big Bird is fine and does not need to have the Z axis updated or the E34M1 Front swapped out yet. IOW, I don't need to touch this right now. Next project...

Previous To-Do list:

1. Big Bird needs his new OmniBox.
2. Big Bird needs a new CAN toolhead
3. Might also "borrow" his hotend for Oscar
4. Oscar needs a new hotend
5. Oscar also needs a new trihorn, since the explosion yesterday damaged the horns.
6. Need to get the MW SE-450-24 PSU out

Successful couple of days.

[short cove]

need a new todo list! you know this hobby is never finished

[tiny bramble]

Lol, I was about to start making one. I decided not to make on yesterday on purpose. 🙂

PENDING THINGS

Big Bird:

• Swap Z carriage for new one
• Swap E34M1 Front for new one
• Test all the things

Oscar:

• Wait on new extrusions
• PID tune (oops)
• Setup electronics for dual Z
• Figure out how to raise the printer ~10mm.

[short cove]

when is elmo hitting the streets?

[tiny bramble]

Bruh, we don't talk about Elmo anymore. Dude's drug habit was out of control. Stole about $300 worth of CD's and my mom's engagement ring, spent all that money on ASA-CF, and OD'd his hotend right there in my office.

[short cove]

elmo is so pgangta

[tiny bramble]

lol

[short cove]

gangsta

im too drunk lol

[tiny bramble]

Do you remember those old Sesame Street memes where they have knives and stuff?

[short cove]

yea theyu the bomb

[feral prawn]

wait did you let your todo list gwt empty?

[tiny bramble]

For this build log, yes. For projects in general, heeeeeell no, lol.

I got involved in the CPAP for E34M1 and fixing up the OmniBox HSI issues.

[feral prawn]

it was for @short cove 😁

[tiny bramble]

Did @short cove let his todo list get empty while he was drinking?!?

https://tenor.com/view/waynes-world-garth-wayne-party-party-on-gif-5162837

[potent stone]

yes, when it’s close to finish and prints perfectly, you need to disassemble everything and try something different

[feral prawn]

IDK but it never finishes

[tiny bramble]

If @short cove is passed out (which I suspect he is), he's gonna wake up to a bunch of notifications.

[feral prawn]

well just one more for @short cove

[tiny bramble]

This is very timely, actually. I'm setting the stage to tear down Oscar and make him go Dual Z. 😆

Not a complete tear down, but there will be disassembly.

[potent stone]

but you see, it’s true 😝

I found a trident frame for 50€ in the market place ….. 🤔

250 trident… so I considered getting that to rebuild completely the printer 😅

luckily I’m too lazy

[feral prawn]

speaking of rebuild, yesterday moved hydra motors rails etc

[tiny bramble]

Oooh

[tiny bramble]

How's it now? Still in reassembly or back together?

[feral prawn]

will move gantry today

as a single piece

no belt removal no X disassembly

[tiny bramble]

Oh sweet

[feral prawn]

just unscrew towers and rails

[tiny bramble]

Oh...I see.

[feral prawn]

is it extra work, sort of

[tiny bramble]

I'm nervous considering it, but see the advantages.

Maybe zip tie down the rail carriages so they don't go anywhere?

[feral prawn]

putting the rails is more work but I don't touch anything else

[feral prawn]

I got some printed stoppers

[tiny bramble]

Not sure if you can do it without undoing the belts, but you can slide a linear rail from one extrusion to another. Set the new extrusion next to the end of the current one, unscrew all M3s two turns, and slide.

Sometimes takes some shaking to get the nuts to move from one extrusion to the next, but takes all of fifteen seconds for the whole thing.

[feral prawn]

that is how I out them where they are now

I'll see but I'm not taking anything off

[tiny bramble]

Agreed. I really hate running belts now. 😆

[feral prawn]

issue is, I need to remove half the toolhead to undo belts

I don't want to

[tiny bramble]

EVA 3 is the same. It was supposed to be better, but it's not.

[feral prawn]

also bed adjustment thingies are ordered

[tiny bramble]

Bed adjustment thingies?

[feral prawn]

tagged you on the other aide

[tiny bramble]

Printing CPAP adapters right now, but I'm also going to print a riser for Oscar. The dual Z setup pushes the motor down 6mm, which is too low. I'm trying to raise it 15mm.

[short cove]

@tiny bramble @feral prawn my todo list is ever increasing for my printer, I keep changing the goalposts.

[tiny bramble]

Feeling recovered? 😉

Also, likewise

[short cove]

Yea kinda lol not feeling very pissfit

[tiny bramble]

I'm a bit off myself. Glad you had fun, heh.

[tiny bramble]

Printing Oscar's risers. First corner came out fine. Each one will have two EPDM feet.

[feral prawn]

I know the feeling mine is the same

[tiny bramble]

Highs of 100F all week, lows of 80F. LOL FML.

[feral prawn]

37.7C heh similar here

[tiny bramble]

Forgot for a second it's midday there and went, "THIS EARLY?!?"

[feral prawn]

no that was a conversion from your F temp

at that time it was like 30C

but we do expect a 37C maximum

[tiny bramble]

Ah, gotcha.

I wish I could convert more stuff in my head like temperature.

CPAP is almost done, btw

Then back to raising Oscar 2cm.

[feral prawn]

I can't, i just google it

[tiny bramble]

Most stuff I can get a general idea. I google anyway for precision, but wish I could get closer in my head.

aw hell

I printed the threads, tested them, and can't get them undone.

[feral prawn]

best I can is a few inches or feet to centimeters

[tiny bramble]

Update:

Big Bird

• Same as before, swap Z, swap E34M1 front
• Test stuff

Oscar:

• Still waiting on extrusion
• PID tune
• Finish printing feet to raise printer
• Install Dual Z wiring

Probably will do Oscar wiring and Big Bird's dual Z upgrade first

[tiny bramble]

Big Bird's Ender 3-based Z axis installed.

And looking very normal again.

[feral prawn]

ready to spread the word?

[tiny bramble]

Don't you know about the Bird?

Or everybody with a heart votes love?

[tiny bramble]

This is from a song from the 60s

[feral prawn]

bird is the word?

[tiny bramble]

https://www.youtube.com/watch?v=9Gc4QTqslN4 Yep, lol

[feral prawn]

yep

[tiny bramble]

Incredibly annoying song, unlike Absurd

[feral prawn]

I know both

love both

same with those 10 hour loops on YouTube

[tiny bramble]

Wait, ten hour loops?

I'm not a frequent YouTuber

[feral prawn]

just a sec

https://youtu.be/OWFBqiUgspg

one example

yes I'm not a sane person

[tiny bramble]

I got lost in watching the rave penguins. That's...a weird channel.

Most my music is downtempo, trip hop, that kind of stuff.

[feral prawn]

my music is a lot of different things

chillout? sure, psytrance? of course, metal? bring it on

[tiny bramble]

https://tenor.com/view/love-tool-trippy-nicolas-cage-gif-5309826

Toolhead reassembled. I've since shortened that hotend wire.

I messed up something in the CAN PCB wiring. Can't get BLTouch to work and the CAN fan won't come on.

[feral prawn]

you not very lucky with toolboards

[tiny bramble]

Nope, not at all. Got the BLTouch working, though.

Might be the fan, though. I remember this issue before and swapping the fan.

I think I'm the dum-dum that kept the broken fan and used it again.

Alsoooo I think the new Z joint is too high. I'm at the top of the lead screw and can't reach the hotend. 😭

[potent stone]

use spacers like in the 5+?

[potent stone]

if he’d dared to get the thr36, he would have been running BB since May 😝

[feral prawn]

hahaha possibly maybe

[potent stone]

we’ll never know. but I’m quite impressed about the thing. I think it includes more stuff than other boards?

[feral prawn]

I don't really remember, I decided based on price

but being able to connect with ferrules instead of molex helped

[tiny bramble]

Mine included a hoverboard.

[potent stone]

me too. It was actually ldt resort since nobody else was shipping at the time. I am running 3 endstop, I don’t think mellow or btt have as many

[tiny bramble]

This is power in?

[feral prawn]

power and data

[potent stone]

yes, power and can

jinx

[tiny bramble]

Aww, I prefer the Mini Fit Jr...

[feral prawn]

3 fans as well

it will be nice for dual 5015

[potent stone]

true, I only use 2 though. but it would be perfect for double 5015

double jinx

[feral prawn]

I'm on 2 fans but I want to go dual

2 as in hotend and part cooling

[potent stone]

I don’t remember if it has neopixels 🤔, but maybe the servo pin or something similar could be used for that

[tiny bramble]

Three fan pins? That's nice...

[feral prawn]

it does

I need another output for some led on the toolhead

might even go fancy and add one on the logo

and color code it

hot? red

cooling? yellow

cold blue

something

need eva3 though

hope my petg duct survives long enough to print an abs one

[tiny bramble]

Hey @feral prawn, we're now the two chattiest MFers here.

[vestal fog]

Zero G's leaderboard

Want to view more than the top 10 users? Click here

[tiny bramble]

And @potent stone is coming up quick

[feral prawn]

wait I'm still in the lead?

[tiny bramble]

Our meteoric leveling got lost in the pack before.

[potent stone]

yeah, I was home 🤒, what could I do?

[feral prawn]

do I win something?

[tiny bramble]

oh no! Feel better, dude.

[tiny bramble]

An E34M1 warranty. I've recently begun offering them for free.

[feral prawn]

btw need your naming ideas

what do I call the pieces I designed to use the full Voron bed on hydra?

[tiny bramble]

Hyvore

[feral prawn]

Vorydra?

[tiny bramble]

Tridra

[potent stone]

would you get a new serial now that the printer you got yours was morphed back to stock?

[feral prawn]

VB4H ?

[tiny bramble]

Hydrant!

[feral prawn]

no I like my beta serial

oh wait I'm on the wrong thread

@tiny bramble forgive me for the offtopic and invasion

[tiny bramble]

No no, Hydrant is good 😉

[tiny bramble]

Pshaw. Just wash your coffee cup before you leave.

[feral prawn]

I thought I was writing on my build log

[feral prawn]

after I drink all the coffee

[tiny bramble]

Dude, I have 9lbs here.

15kg?

Wrong way. 4kg

[feral prawn]

4

grain?

[tiny bramble]

Oh, my dear sir...whole bean.

[feral prawn]

yeah that's the word I was looking for

[potent stone]

roasted already?

[feral prawn]

don't forget you got 2 guys from countries that enjoy coffee a lot

[tiny bramble]

I'm not quite so hardcore as to roast my own

But I have considered it.

[potent stone]

I wonder which coffe quality you get over there, and if you roast more like french press or Italian espresso 🤔

[feral prawn]

I'm waiting on a possible batch from my in-laws

they're growing coffee

they have some beans already

[potent stone]

I had my coffee from a local shop back in Italy, but they’ve stopped international delivery years ago 😩, so I’m buying pretty standard beans

[tiny bramble]

We. Have. Shit. Even Starbucks is giving in to cinnamon/American roasts

[potent stone]

tried starbucks coffee beans, I had great hopes but it’s not up to expectations.. and it’s super expensive

[feral prawn]

had Starbucks once

[tiny bramble]

It's the only (real) dark roast here 😭

[tiny bramble]

Beans or beverage?

[feral prawn]

dirty water never again

[feral prawn]

beverage

[tiny bramble]

Ahh, yeah

[feral prawn]

just lost hope on them

[potent stone]

Starbuck is only good for season special PSL and stuff like that

[tiny bramble]

I worked for them for 12 years. I have zero faith in the company since 2008.

[feral prawn]

Portuguese Delta has good roasts but the best are hard to find as they mostly sell those to shops

shops as in bars etc

[tiny bramble]

I'm looking for a new roaster. Anyone who can properly roast an Espresso or Italian roast.

@potent stone This is a normal American breakfast coffee roast.

There's no oil! 😢

[feral prawn]

they look dry not roasted

[tiny bramble]

Yeah, it's sad. Dirty bean water.

[feral prawn]

I have yet to see coffee roasted like that

[tiny bramble]

It dominates the American market.

[feral prawn]

damn poor coffee

I usually say Americans don't know how to appreciate coffee 😅

[tiny bramble]

We do not (on the whole).

[old marten]

I've never seen coffee that dry??

[feral prawn]

I'm aware exceptions exist, like Italians who don't appreciate it 😛

[tiny bramble]

Starbucks blonde roasts

[old marten]

why did you buy starbucks?

[feral prawn]

there's your problem

[tiny bramble]

Starbucks introduced blonde roasts very late. Americans who drink dark coffee have to drink Starbucks.

[old marten]

I've never viewed them as a quality roast, they just add so much crap that they can coffee up any bad coffee

[tiny bramble]

By default, Starbucks adds nothing to brewed coffee.

They're not an outstanding roast, but not terrible, either. The quality has gone down the past decade.

[old marten]

everyone I see with starbucks adds crap

I've had good coffee at mcdonalds before, though thats a hit or miss

[feral prawn]

McDonald's coffee here is not bad, but then I believe they adapt to each market

[potent stone]

wot!

[feral prawn]

oh dear I have awaken the Italian in you

[tiny bramble]

Best coffee I ever had was actually an Archer Farms (Target) coffee. Tasmanian peaberry. So fucking good.

Rwandan coffee is excellent

And I can't drink anything from Indonesia at all.

[old marten]

I am lazy and just get amazon columibian roast on a sub, then get different roats from the store when I need to fill between the orders.

but only buy whole beans and grind it right before brewing

[potent stone]

ahh I’ve re-read and understood… but I got pretty much shocked the first time I left Italy and ask a “coffe” and receive a full cup of dirty water

[tiny bramble]

We would have much to discuss about coffee...

Do you make espresso?

[feral prawn]

yea you need to ask for an espresso

in Portugal coffee defaults to espresso as well

[tiny bramble]

The chic thing now is pour-overs. Which I admit are quick.

[potent stone]

yeas, that was the issue..

[tiny bramble]

But they're no French press.

[potent stone]

we don’t specify espresso in italy

[feral prawn]

exactly the same

I feel you

we ask for coffee

that's it

[tiny bramble]

Are Americanos available in Europe? Watered espresso?

[potent stone]

if younask for an espresso they would think you are a smart ass.. I don’t think they have the gear to make anything else than espresso in the average italian bar/diner

[tiny bramble]

I had forgotten that, tbh. That's why I asking about Americanos. American troops in WWII couldn't get regular coffee, so they watered espresso down (to the horror of the locals).

[potent stone]

In my machine there is the americano option, it makes. long espresso, and than literally double it with hot water

[tiny bramble]

That's it, yep

[potent stone]

my machine is Swiss

[tiny bramble]

Hell yes it is.

I want a Swiss espresso machine so badly.

[potent stone]

Italian machine wouldn’t do that

[potent stone]

I had one from my old workplace, when the company was sold to a bigger one, they put everything in the office space in sale, I reached out and nobody wanted the machine (jura xf50) for 30$

[tiny bramble]

Here's a more details reference on roasts. French roast should be darker than Italian, IIRC, though

I've heard Full City referred to as Viennese

[potent stone]

when it broke (it didn’t really broke, those things are like tanks, it costed too much to repair) I exchanged it in the shop with a newer model of the same brand… extremely solid machines

[tiny bramble]

That's some fantastic customer service for a $30 machine 😆

[feral prawn]

what just replaced it?

[tiny bramble]

Like, you could resell the new machine for what I'm guessing would be over a thousand and have only spent $30 going in

[old marten]

I've never seen a light roast that was actually light

[tiny bramble]

I'll drink a full city, but the darker roasts are my go-to.

[feral prawn]

I think I only have seen above full city from that chart

[potent stone]

Kind of… they gave me 200€ discount on a new machine

[tiny bramble]

That's still great service

I think I'm going to address Big Bird's Z axis woes tomorrow. I've been staring at the CAD for an hour and have nothing.

[tiny bramble]

Halfway done printing the first one. May be able to swap this all out today!

[feral prawn]

just get hydra 🙄

[tiny bramble]

Lol, Hydra costs 10x or more what this does

Also it means that I have 2/3 of the motion components for Hydra if I do that later (and haven't sunk that much money in the current solution, either).

Well, I'm ignoring the cost of the linear rails, since I had those already.

[feral prawn]

soon you'll be able to use a voron bed

as soon as my printed adapters are tested

I don't advise it though, get a proper one if possible

[tiny bramble]

I'm getting a large Amazon order tomorrow, lol.

[tiny bramble]

Everything is printed but I'm caught up in something else, so no progress today.

[tiny bramble]

Big Bird is back up. Running screw tilt calculations.

[feral prawn]

noice

[tiny bramble]

New batteries for my UPSes are coming in, so I'm switching them around while I'm at it. Beefed up Big Bird's to an 850VA and going to get Oscar onto a 750. Wish I had another 850, but dunno why I only have one.

Reminder: Big Bird and Oscar are on 450W PSUs, not 350.

Grover is still on a 600VA because he's a basic Ender 5

Also have the remaining parts for Oscar's dual Z coming in today. I don't know exactly when I'll install them, though. I have a busy couple of days coming up.

[potent stone]

ohh no the poor thing!!! what are you going to do about that?

[feral prawn]

full merc

[potent stone]

with hydra 😈

[feral prawn]

ofc

he's avoiding it

[tiny bramble]

Grover will go Merc eventually. But not for awhile.

[short cove]

Go vzbot awd and just full send it

[tiny bramble]

Gonna be a busy day today; not sure what I'll get done or not get done./

[tiny bramble]

New feet for Oscar, raises the base by about 12mm

Got the Z axis extrusions and such installed already

Whiiiiiich kinda cleared out the enclosure

[tiny bramble]

I'm printing a final revision of the Z Joint file for the Z axis. In the mean time, I've got Big Bird (spreads the word and) running input shaping tests on the belts.

I can take off the build plate and carriage with four screws to swap out the joints, so I won't need to redo the bed.

Wait, damnit. Forgot that I discovered the left front idler on Big Bird is shot.

It came out of the same pack if toothed idlers that was bad on Oscar

I might just replace both

...replaced, back to belt tuning.

It's wobbly.

[feral prawn]

does not look good

[tiny bramble]

trash now

[tiny bramble]

neither do my accelerometer graphs

heh

[feral prawn]

hydraaaaaa

💸

[tiny bramble]

Calibrate_shaper choked on my Y axis results, so I need to find out what's up there. X axis looks great. Probably something stupid rattling around on the printer (yes).

Also, looks like my Big Bird's OmniBox's 60mm exhaust fan is not working. Hot AF but not spinning.

You know what would make for a winner of an MCU board? One with standard 4-pin fan headers for every fan.

[feral prawn]

for tachometer and split pwm?

[tiny bramble]

particularly the tach

[potent stone]

I think we are going to convince him sooner or later 😂

he probably also have all the bom for it, looking at all the things he’s up to all the time… ah, the bed yes…

I was looking for some workshops around in texas… almost, this in Minneapolis 😅, but it looks cool

[tiny bramble]

The plate itself is not so bad, although I'd prefer a 255 https://www.fabreeko.com/collections/zero-g/products/zero-g-atp5-aluminum-beds-for-ender-5-pro-plus-hydra-conversion?variant=43866439254271

And if I do go Hydra, it'll be on a big bed.

[potent stone]

isn’t 10 inches almost 255?

[tiny bramble]

yes

right about

[potent stone]

ah I see fabreeko has the 275 only

[tiny bramble]

No space for a nozzle brush with that

[potent stone]

it spans all the toolhead travel, maybe some servo

[tiny bramble]

https://tenor.com/view/cat-funny-dog-jump-gif-24406029

[tiny bramble]

Ooh fancy

Probably fancier than I want to get 😆

[potent stone]

he almost got it out the tv!!

[potent stone]

you don’t want to brush over your bed anyway

[tiny bramble]

good point

Big Bird's OmniBox is annoying me. Sigh.

[tiny bramble]

Oscar is now on dual Z

[feral prawn]

Should be triple...

[tiny bramble]

It's on backorder

[tiny bramble]

Pre-order backorder.

Gah. Binding.

I think I know what's up, though

It's past 4, though. I'll work on it tomorrow.

[tiny bramble]

I think the 300mm extrusions that form the crossbar for the Z axis are a touch long.

May need to sand them down.

Good news is that it's only on fast moves that it causes an issue.

[tiny bramble]

Binding is gone

Shaved a little off of the ends of the extrusions. Also rechecked the rail and lead screw alignments

Some adjustment to the run current, and I think Oscar is good to go.

Right on. Bed is leveled, doing some PID tuning and then a bed mesh...away we go with Oscar.

Big Bird still needs to have the rear 60mm fan fixed, and I'm admittedly avoiding that.

Two Mercs on dual Z. Total cost: $70 = $20 (2x Tr8x2 lead screws) + ~$50 (extrusions). All other parts were on hand.

[nova atlas]

the angle of that cable chain is truly unhinged

[tiny bramble]

Nah, it's quite fine. I did a lot of looking into possible cable chain implementations ahead of time.

Just looks super janky

[nova atlas]

yeah i did t mean from a performance standpoint

just visually 😂

[bronze wagon]

What's that dual Z information?

[tiny bramble]

Instead of going Hydra, I took a bunch of parts I had on hand and built a Dual Z setup. It's mostly made of stuff taken from an Ender 3.

But the parts can be reused for Hydra, too!

It's my half-step to Hydra to save money

[tiny bramble]

I'm having ideas.

Looking to maximize the available Y axis. The default Y endstop is nice, but inconvenient WRT interfering with brackets.

IOW: New dual Z setup adds a lot of Y room, but can't use it because the endstop won't move further in.

[feral prawn]

endstop inside?

[tiny bramble]

It is. I need it even further back. The bracket is in the way.

[feral prawn]

remove the corner bracket?

[tiny bramble]

Trying to avoid that

[feral prawn]

mine currently does not have a single corner

just the plates

might add some of those @stray comet brackets in PETG CF (for the looks)

the old ones will go with the slowpoke

[tiny bramble]

The stock corner brackets tapped in the frame are definitely an issue, but these are Misumi brackets and installed to roll in tnuts. They help, unlike stock.

[feral prawn]

granted I did not test anything yet

might run some shaper charts now even without motor

[potent stone]

sensorless homing?

[tiny bramble]

Good idea, but I'm looking for a more general solution that I can use with E34M1, as well.

The Y endstop is technically part of EVA 2.4 download for some reason.

Thinking something along these lines.

[potent stone]

or even recessed making a slot under the stepper tower?

[tiny bramble]

My first thought, but I don't believe there's enough room

[potent stone]

because like this the carriage will not be able to go further back as in the default endstop

[tiny bramble]

Mrm. Good point.

[potent stone]

you can always go negative, using the additional room, the important is not to pass the endstop completely, so the little metal flag is released and bind (and break) once the carriage goes back

[tiny bramble]

There's brackets in the way and I'm trying to avoid removing them, however

[potent stone]

yeah, the goofy creality tapped brackets

[tiny bramble]

Nope. I removed them. Misumi brackets installed to roll in tee nuts.

Also a joining plate on the outside

[potent stone]

hmm, maybe blind joint? that would remove the need of corner brackets... but that's a lot of work

[tiny bramble]

I can't make a blind joint in that corner, either

Might say screw it and remove the bracket

[potent stone]

if you have a joining plate it should be fine

[tiny bramble]

Yeah, I'm just going to remove the bracket. Dang. Wish I had a better solution, though.

Woohoo!

Next up: nozzle brush

[feral prawn]

like I said mine does not have a single corner bracket and I'm not planning to

frame is pretty stiff as is with the plates

[tiny bramble]

You also have blind joints in that new frame, right?

[feral prawn]

nope

just plates

[tiny bramble]

interesting, wow.

I would like to swap out these corner brackets for struts at some point, though

[feral prawn]

I squared it (as best as I could, just a little off) and didn't move yet

shaper will tell

I may add brackets anyway

for looks and extra stiffness

[tiny bramble]

Aside from minor tuning and a nozzle brush, Oscar is ready to go. I may go Klicky or Beacon later.

[bronze wagon]

@tiny bramble how about a endstop on the back rail? Left of the tower.

It's just needs a offset

[tiny bramble]

Not deep enough because of the endstop wiring

[bronze wagon]

You want to go further back?

Belts are back there. 🤔

Put it into the tower?

[tiny bramble]

Not enough room back there without a lot of work

[bronze wagon]

So what your saying is the Eva takes bed build area away?

In back of bed?

[tiny bramble]

This is the ZeroG Y endstop. It assumes you remove that corner bracket. I was hoping to find a way around it.

Or that you put it on the outside

But I have joining plates there, which are stronger, so I removed the inside bracket.

[bronze wagon]

Look at this. I'm going to try.

https://drive.google.com/file/d/1oIctHc-yBAJ3QVKxbBecmSFezQ1QZ7Mc/view?usp=drivesdk

[tiny bramble]

Not sure I understand where this mounts? Between the linear rail and stepper mounts?

[bronze wagon]

Yes

[tiny bramble]

Ahh. I have 330mm rails. No room. 😦

Mine go right up to the steppers

[bronze wagon]

Oh.

[tiny bramble]

you can just use the ZeroG Y endstop if you have 300mm rails. It's not an issue there at all.

[bronze wagon]

I have a corner plate. 😁

[tiny bramble]

On the inside?

[bronze wagon]

If someone can tell me what switch is used for their mount

[tiny bramble]

oh! just use the flush cutters to get one off of your creality endstop.

then unscrew it

Solder the outside two pins with wires and you're done

[bronze wagon]

Trim the board?

[tiny bramble]

One sec, let me get a pic

[bronze wagon]

I like pictures 😁🤣

[old marten]

the y limit switch was never designed to be used with those corner brackets

[tiny bramble]

dangit, can't find a pic

[bronze wagon]

Right. You or dutch told me that. But what switch goes with it, so I can mount inside

[tiny bramble]

but yeah, cut the pins at the board and undo the screws.

[old marten]

D2F-L

[bronze wagon]

Ok. I'll look at it again

[old marten]

or you cut the pins off the factory switch, they are the same specs

just have very long pins that are angled

[bronze wagon]

I have a few extras I can try it. Thanks @tiny bramble @old marten

[tiny bramble]

Good luck. Feel free to stop back by if you have questions.

[bronze wagon]

Didn't mean to take over your build thread 😔

[tiny bramble]

lol, nbd

[bronze wagon]

If you find a picture, please share

[tiny bramble]

I'll take off my endstop in a sec here and send you a pic of how I did it. Give me 5.

[bronze wagon]

I have all day 😁

[tiny bramble]

I made a #1121069867227938816 thread and pinged you.

[tiny bramble]

I think it's time I print some ABS on Oscar

After talking with @feral prawn yesterday about braces and brackets and whatnot, I decided I might as well start the ABS process on Oscar by printing some big braces.

Oof this bed mesh is gonna be terrible.

[tiny bramble]

Not bad now.

0.025mm is not a good z endstop position.

[tiny bramble]

We're printing...

Enclosure is not even 40C yet. 😦

[potent stone]

it will be fine

[tiny bramble]

Hope so. I've wanted to add insulation to this enclosure and just haven't taken the time. It large, so it takes awhile to heat up.

Hehe. The 3.2mm walls on these struts are taking foooooreeeeever to print.

[feral prawn]

you'll burn through a lot of plastic for those

[tiny bramble]

Got about 2.5 spools of gunmetal gray abs to use. About 110 grams a pair right now.

Might do Big Bird's in blue, though. Plenty of that, too.

I really need to look into getting more PIR foam for Oscar

[feral prawn]

how many walls/top/bottom/infill

I think I did mine with 4 or 5 walls same 4 top and 40 infill and I think they were lighter

[tiny bramble]

8 walls, 20% infill. Top or bottom doesn't really do much for strength, so I left that at 4.

3.2mm walls are going to be the bulk of the strength on these. Every 2 additional perimeter added 15ish grams of mass.

I considered going 4mm to make for solid walls.

Only added another 10 grams. Sweet.

Enough dilly-dallying. I'm supposed to be cleaning.

[feral prawn]

going to be some solid boys

need to find a filament I like for mine

but damn CF is expensive

[short cove]

The Asa-cf I get is actually cheaper than polymaker normal asa.

[feral prawn]

if I can find it here

considering PETG CF actually

[short cove]

I technically got a free roll of petg-cf as it was sent to me wrong and store said their error keep it. I was thinking of using it for braces as well

[old marten]

I put printed braces on my 5 plus and didn't notice any change. Also heard from multiple people that it had been proven that they do nothing.

[short cove]

Is it more what you have it sitting on? Hence the paver under the printer?

[old marten]

That helped the most

The frame still twisted out of shape with those

Input shaper didn't change at all

[feral prawn]

might bolt mine to the enclosure

[tiny bramble]

I'd like to know how thick the walls were for those tests

I'm printing with 3.2mm walls right now and plan to go up to 4mm.

[old marten]

go with metal braces if you want them to be functional

[tiny bramble]

I checked into that first. Misume charges $25/ea for corner struts. 😬

I wonder if Fabreeko would be interested in doing a batch of those.

https://www.framingtech.com/20-series-6-miter-support <--this is cheaper, but is M4 threaded only

[feral prawn]

other materials than ABS?

[tiny bramble]

Were tested?

[feral prawn]

no asking if you considered

you can get some stuff printed with Nylon pretty cheap

[old marten]

nylon flexes even more

[tiny bramble]

Yeah...

PC would be better for rigidity, yes?

[old marten]

pla is the most rigid plastic for hobby printing

but doesnt handle heat at all

peek

[tiny bramble]

most PLA is modified to add flexibility anyway

[feral prawn]

PC might be a little too brittle

peek is freaking hard to print in a hobby context

near impossible I believe

[old marten]

look into the outside corner braces

simple plates

only downside is with panels, you need to trim panels to fit around them

[feral prawn]

to be honest mine is currently built with only corner plates

[tiny bramble]

I already have them on one printer

And can't put them on the other because it's modified 😕

[old marten]

other fix is to not use 2020, its not rigid at all

[feral prawn]

the damn thing feels pretty solid

[feral prawn]

RR uses 3030 I wonder how much better it is

[old marten]

and corner brackets

though I do not agree with them not using blind joints

[tiny bramble]

https://www.reddit.com/r/coreception/comments/jk1s48/comment/gaiej61/ <-- Interesting read. It's Reddit, so some grain of salt is needed.

Basically the conclusion is corner gusset brackets are best unless you can do blind joints

[old marten]

which is a weird way of saying it, if blind joints are best then just say that lol

[tiny bramble]

lol, it was pretty long-winded way of getting to that

[old marten]

even the conclusion

[tiny bramble]

https://www.amazon.com/Iverntech-Bracket-Brackets-Aluminum-Extrusion/dp/B0B2LJVFDD <-- These are a definite upgrade over the regular corner brackets. I might get more of these and do some testing with that.

[old marten]

check any brackets like that carefully

[tiny bramble]

for perpendicularity?

[tiny bramble]

Woosh

[old marten]

had to sand mine down for my k3 build

took that much sanding to get them square

[tiny bramble]

The ones I got previously from Iverntech didn't seem bad, but I'll check them out.

[bronze wagon]

Wish I could afford a Bridgeport mill.

[old marten]

Didnt use my CNC mill, that was done with simple hand files, sand paper, and a small granite block/flat surface

[bronze wagon]

Ya. Just wish. Make my own stuff.

[nova atlas]

gotta be able to afford the bridgeport AND the time to make stuff on it

i have a bridgeport and never use it 😂

[bronze wagon]

I had access to one at work. But no more. 😕 I've looked at the table top ones. But still pricey

[tiny bramble]

Making a CNC mill is on my "maybe in ten years" list

[vestal fog]

Vote Booster: Vote now for a 10% boost. https://arcane.bot/vote

[tiny bramble]

Interesting.

[tiny bramble]

I made up a different strut design. I'm going to print this one, as well, then test 1) without struts, 2) with the VzBot struts and 3) with these

[feral prawn]

@tiny bramble that would be great

[tiny bramble]

Flow rate/e steps are off. Gotta figure that out first.

[tiny bramble]

Figured that out. Printing a cali cube to make sure it's good, then off to print struts

[tiny bramble]

First set of struts are printing. I'm going to reprint the others with 4mm walls, as well.

[tiny bramble]

So I'm thinking out loud about an idea.

We used flanged bearings instead of smooth idlers because they have larger bearings

But the toothed idlers are needed, so we still have the problem of them having smaller bearings.

The alternative to getting a toothed idler with a larger diameter (which would require a huge redesign) is to decrease the bore.

Instead of a 5mm dowel, use a 4mm dowel. You can easily get these, and just as easily get toothed idlers with a 4mm bore.

That adds dowels to the BOM, but then my question became: what if we also got different smooth idlers, i.e. different flanged bearings with a 4mm bore?

The specs of the F695-RS bearing (https://www.amazon.com/uxcell-F695-2RS-Bearing-5x13x4mm-Bearings/dp/B085D91TW1) are:

• Bore: 5mm
• Diameter: 13mm
• O.Height: 4mm
• Flange Diameter: 15mm
• Static Load: 346N
• Dynamic Load: 916N

The specs of the F6924ZZ bearing (https://www.amazon.com/uxcell-F624ZZ-Bearing-Shielded-Bearings/dp/B07Z3DB93B/) are:

• Bore: 4mm
• Diameter: 13mm
• O.Height: 5mm
• Flange Diameter: 15mm
• Static Load: 390N
• Dynamic Load: 1106N

m4 shims are 0.5mm. A flange stack of shim + 2x 624 + shim is 11mm.

A double flange stack is 21.5mm (with shim, 2x bearing, shim, 2x bearing, shim)

Next question: will the X Joint fit? The bearings get very close to the bottom on the right side.

Yes.

Here's a sectional analysis with the belts in place

That hole at the base looks closed because I didn't get the angle to the toothed idler correct

[tiny bramble]

And with a little work, the stepper mount works, too

[feral prawn]

I'm lost on what you're trying to do

[tiny bramble]

Switch to 4mm dowels so I can use front idlers with larger bearings. Larger bearings = higher load rating and less likely to break and be garbage.

It happens I can also change out the other bearings, too, which also have a higher load rating and are less likely to be junk

The only real open question I have is if a 4mm dowel is strong enough. I believe it will be, but dunno for certain.

[tiny bramble]

Last one: tensioner

[feral prawn]

still need to find the time to explore the AWD idea

[tiny bramble]

awg corexy?

[feral prawn]

yep that idea that we discussed on @potent stone log

[tiny bramble]

I like it, but I think a regular AWG is easier to implement. The belt routing scares me.

[feral prawn]

ye there's that

just a idea to play with

last thing I need is something to spend more money (already found a printable space mouse....)

[tiny bramble]

Fixed Big Bird's rear fan issue. Still need to do the Z axis work, though.

Also printed a nozzle brush. Gotta figure out where to mount that.

[feral prawn]

you just reminded me I still need one too

[potent stone]

I printed the fan shroud, just to realise I have a 3510 fan, I hate more and more the biqu h2 (I was hoping they used a 3010 but no). so I got 2 3010, 5v and a 24v, maybe always on 5v using a random 5v pin is not too noisy

hope to get them before the weekend

[old marten]

Just use a 4010

[potent stone]

for the time being, I’ll do. So concerned about the thr36 temperature. without anything it still reach 80~90C, so maybe it’s a price to pay. Hopefully it doesn’t introduce nasty resonances

[old marten]

I don't think mine ever gets that hot

I do have heatsinks on both the mcu and 2209

[feral prawn]

mine with bed at 70 enclosure around 30/35 is around 58

[potent stone]

me too, just because I misplaced it though 😂

[feral prawn]

looks too hot

[old marten]

Same

[feral prawn]

need to test it with the bed at 100 though

[old marten]

Then I ordered black heat sinks

[potent stone]

it’s fine as the print goes, but while printing it climb up

[old marten]

Cause I couldn't have a silver or blue next to the other black one

That I never see

[potent stone]

I have blue and black, maybe the board is complaining about it

hence get hot

I should buy a spare board

[short cove]

4mm carbon fibre dowel? Or 4mm m3 shoulder bolts to hold things together or…… smaller flanged bearings that are pressed into a printed toothed cylinder for idlers.

[tiny bramble]

Just swap the 5mm stainless steel dowels for 4mm, the 695 bearings for 624, and the 5mm toothed idler for a 4mm one

The changes to the printed parts took an hour to accomodate. It's not a huge change. 🙂

The smaller bore leaves more room for bigger bearings, and that's all I'm really interested in

[short cove]

I apparently bought gates idlers, I think they just mellow ones like turtle said. I’m just throwing out ideas. The 4mm dowel would work. From what I’ve seen over the past 3 years on bearings it pays to get decent brands and the amount of counterfeit bearings that are also sold to vendors from 3rd party suppliers is crazy. The science of round is very expensive.

[tiny bramble]

This is true. I'm thinking of ways to reduce the odds of getting junk out the gate without paying much more.

[tiny bramble]

https://www.duet3d.com/blog/scanning-z-probe-for-reprapfirmware-and-Duet <-- Rabbit hole on Beacon

[nova atlas]

this is an interesting read, but all the compensations beacon does are fairly important to the accuracy and consistency

looks like he’s off to a good start though

[tiny bramble]

My thoughts, too. The testing and quality of hardware that beacon offers are beautiful, but it needs USB.

I basically came away thinking, Beacon needs to shed USB or this will be a threat

[tiny bramble]

Okay, so Oscar is back up, better tuned, and printing another set of struts

[tiny bramble]

I need to clean these lead screws and put on POM nuts for Big Bird

cat hair everywhere

[tiny bramble]

POM nuts are on, but I want to take the lead screws and coat them in white lithium. They're squealing like pigs, and it's not from binding.

[tiny bramble]

Okay, coated and drying

[tiny bramble]

So Big Bird is up and almost ready to print

Oscar is printing, but needs more insulation to get the build chamber over 50C

[tiny bramble]

PIR foam acquired.

Also printing the parts for a Sherpa Mini, since I already have them

[tiny bramble]

This is not fancy, but it is 50mmx600x600mm of PIR foam. Comes to 1.5 cubic feet once I do both sides.

[tiny bramble]

May cat just jumped on top of the enclosure (as she does) and stopped to sniff around because the sound was deeper and quieter. I think that's a good sign.

Sherpa Mini is going to have to wait because I can't get this grub screw off and don't want to disassemble an in-use BMG yet.

With the insulation, all that remains with Oscar ATM is testing how fast the enclosure heats up

I've had to junk the brackets I printed because they warped too badly. OTOH, Grover gets up to 50C and has no problem with large objects. I'm hoping that the extra insulation and smaller volume of air will let me reach higher temps.

I always forget not to run Screws_tilt_calculate cold

33C in Oscar right now. Going to print a cali cube and see what I get.

Aaaand of course I didn't load filament first, so I had to open it up and lost heat.

[feral prawn]

you need full bowden and a purge bucket

speaking of bucket I can finally test fit mine

[tiny bramble]

It's PTFE all the way to the drybox

The purge bucket is a good idea, though I don't do filament swaps

Dang. Only got up to 41

Adjusted the thermistor so it's more in open air and am printing again

Ignore the first layer. I loaded the filament on the fly.

[tiny bramble]

43C

[tiny bramble]

I mean, I could just set it up in the garage.

[tiny bramble]

Oscar's enclosure is supposed to have a lower door latch. It was part of the skirt that I removed and haven't replaced. I'm going to modify the original to fit without the skirt now.

Hoping the added latch will give a better seal to prevent air loss.

[tiny bramble]

Latch added

Remember the BMG gear I couldn't get the grub screw free from? Swapped it with an in-service BMG and got that one's grub screw out.

Sherpa Mini just needs a motor and a shim ring.

[tiny bramble]

Now just needs a motor.

Did this while I was at it. It's modified from a STEP I found on Printables.

Trying to lighten the mount even more. It's 12g.

[feral prawn]

What's the change?

[tiny bramble]

A little lighter (probably) than the ones already on Printables. Accepts M3x5x4 inserts instead of the silly EVA ones. Room for lock washers for the mounting screws.

considering taking out that front mounting hole entirely since it's not required

[tiny bramble]

I like this much better. Took out a lot more material and lowered the extruder 3mm. 14mm of PTFE instead of 17.

Got it down to a 9g print

[feral prawn]

I will want that file

EVA 3 right

[tiny bramble]

Yep. Printing it now. Give me a day to test it, because I will want to tweak it.

Between these two enclosures (Grover's and Oscar's), they're about the same size. Oscar has almost twice the insulation, though. Grover has spots that are missing insulation, where it's just bare ABS panel. Oscar doesn't even get warm on the outside.

And yet...Oscar does not heat up as much.

56C in Grover currently.

[feral prawn]

no rush still on eva2

[tiny bramble]

Oscar won't get above 45

[potent stone]

do you want the file with the filament sensor option? and one-piece-gear compatible?

[tiny bramble]

for EVA 3?

[potent stone]

🤦‍♂️

[tiny bramble]

lol, i'm lost

Sherpa Mini file?

[potent stone]

nope, I was talking about the sherpa itself

sorry, I missed some post above and thinking you were modifying the sherpa not the mount

[tiny bramble]

no worries. I am interested in the idea of putting a filament sensor on the sherpa, though.

[potent stone]

it’s super simple, and doesn’t change the design

[feral prawn]

that or the swnsor for eva

I like the idea of sensor after extruder

[tiny bramble]

There's one hangup...

[feral prawn]

which is

[tiny bramble]

I need a runout sensor, not a load sensor

So it would never engage 😆

[feral prawn]

🤦

I'm an idiot

[tiny bramble]

Naww, took me forever to figure it out, lol

[feral prawn]

I wanted to use it as run-out as well

[tiny bramble]

Paging @potent stone , we are both in need of your knowledge now.

lol

[feral prawn]

I have access to what he has

[tiny bramble]

Shh, that's less dramatic!

[feral prawn]

I like to brag

[tiny bramble]

lol, can ya spill?

[potent stone]

hehe, it’s work perfectly for me

[tiny bramble]

The one @feral prawn planned to use is installed under the extruder instead

So it won't work as a runout sensor, because it will never trigger on runout, hehe

[feral prawn]

would need to find it first

[tiny bramble]

No worries. I'm not printing or installing it immediately.

[feral prawn]

shiet I didn't want to change my sherpa

it's SLS

[tiny bramble]

Oh

[feral prawn]

nylon looks like

that thing didn't melt with the extremely hot motor

[tiny bramble]

Mine is not so fancy

[feral prawn]

I can always order from jlcpcb

[tiny bramble]

They were affordable, IIRC

[feral prawn]

shipping is the problem

price wise, speed was fast

[tiny bramble]

Long term, I think I'll switch to Klicky. Beacon is expensive and too experimental still.

I still need to test out the CPAP, too.

(I'm thinking out loud right now)

Oh, I plugged a hole in Oscar's enclosure. It's a small hole, but it was letting air out, and it is located on the top. I doubt that will raise ambient by 10C, but we'll see.

I can install the CPAP when I install the Sherpa, actually. It's going to take a bit of work changing from NEMA17 to NEMA14. Need a new mount.

Sherpa Mini mount is done

[feral prawn]

still need to recalibrate my coordinates

[tiny bramble]

At least you don't need to worry about missing the build plate 😆

[feral prawn]

one thing that's been annoying me, sherpa bounces a little

it's back heavy

[tiny bramble]

What if I put a zip tie anchor in?

[feral prawn]

I need a way to secure the motor

I was thinking that but not elegant

but I know I might end up with the zip tie, engineer's best friend after duct tape

[tiny bramble]

Where else could it mount? The two screw holes are in use. The other option is make the extruder sturdier.

[potent stone]

you only need 2xM2.5 holes for the switch on top of the front case, and 1xM3 hole for the trigger screw on the lever

[feral prawn]

not going to drill it

[tiny bramble]

Drill and tap it!

[potent stone]

maybe it’s possible to make a jig to find where to prime

[tiny bramble]

Groucho over here...

Grumpy McPartyPooper

[potent stone]

you can print a sherpa and keep the sla as is 😂

[feral prawn]

true

ahhh

I want the sturdy one

[tiny bramble]

You know, for a near-stock Ender 5 Pro with a BMG on a sub-par direct drive mount, this print is pretty good.

[tiny bramble]

The still-hypothetical sturdy one?

Or the SLA printed sturdy one?

[feral prawn]

the SLA

[tiny bramble]

There's a fix you can use

[feral prawn]

fuck it zip ties

but no sensor

[tiny bramble]

You can drill it 🤣

[feral prawn]

I know I'll drill the motor

[tiny bramble]

Wait, drop the motor?

[feral prawn]

drill

typo

[tiny bramble]

Drill the motor?

[feral prawn]

yes

[tiny bramble]

I'm not qualified enough to know the answer, but is that a risky idea?

[feral prawn]

yes I'm just joking

[tiny bramble]

OH DEAR GOD THANK YOU

lol

Okay, so I can bridge those support sections and add a zip tie anchor?

Between the two pillars, basically

Then you can loop a zip tie around that

[feral prawn]

not bad

[old marten]

sherpa is still technically a nema 17, not a 14

uses 2 of the 4 nema 17 mounting points

[tiny bramble]

compatible with both, then?

[old marten]

no, because you need that pressed on tiny gear

but this is why 36 and 42 can boards fit either

[tiny bramble]

interesting

[tiny bramble]

I think the enclosure heat issue is the extrusions on the inside soaking up heat.

[tiny bramble]

Almost 46C

[short cove]

With what and where are you measuring chamber heat? I have a thermistor on my SB pcb and it shows that I get 50c-60c in my just top only cardboard enclosure?

[tiny bramble]

It's a hanging thermistor in the back of the chamber. About 50mm below bed level.

The conclusion I'm getting is that the aluminum is acting as a heat sink. Until it's soaked up plenty of heat, I'll have issues. Next step will be cladding the exposed extrusions to dampen the effect.

[tiny bramble]

This sherpa mini is f'ing tiny.

[short cove]

On the weekend I’ll stuff around with mine, I have a few extra thermistors.

[short cove]

They come in micro too

[tiny bramble]

Yeah. I think I'm going to print that next, actually. I have two printers to move to NEMA14 that are currently on BMGs.

[tiny bramble]

The EBB42 does not have an existing mount for the Sherpa Mini. So. Sigh.

Don't even have something to start from for the shroud.

Blech.

[feral prawn]

the ebb36 one works diagonally IIRC

[tiny bramble]

It's not a rush to get this on, but still.

[tiny bramble]

My 36 blew up. I only have 42s now

didn't realize the CAN mounts TC made were all for the 36 boards

[feral prawn]

you didnt get it

check if two diagonal holes of the 42 works on the 36 mount

I sort of remember turtle saying they worked

[tiny bramble]

Not sure that's gonna work with the CAN wiring. Connector location will be weird, but i"ll check.

[old marten]

Not hard to model those up from scratch

They just use nema 17 bolt patterns

And you can download the models of the boards from github

[tiny bramble]

Yeah, I've got everything in CAD in front of me, I'm just grumbling because I didn't think to check that the EBB42 actually had a mount.

Unexpected work is not my favorite, heh.

Lesson learned

[potent stone]

I am using a ebb42 on turtle mount

[tiny bramble]

Turned?

[potent stone]

need to make a selfie to take a picture

trying to get out of the way

the thr36 mount lifts the board by ~5mm off the mount holes, so it also allows the ebb42 to completely stay within the mount boundaries

it’s not true, maybe it goes off the boundaries for a couple mm at the bottom

[tiny bramble]

Hmmmmm

Guess I'll give that a shot then

[potent stone]

downside, there is no way to get the shroud like this, as the minifit gets in the way, and the cable covers a mounting hole, and I don’t want to stress it too much

[tiny bramble]

Also a good point. I really do want a fan on there. Keeps it very cool.

[potent stone]

don’t look at how I wired it, I was thinking it was temporary until I fixed my other board.. but now that’s there and working I regret not having spent some time in removing jst and crimp some dupont where they should be dupont

[tiny bramble]

Oh, eh. No judgement here.

[tiny bramble]

I was looking at Oscar's enclosure a few minutes ago. I took a picture with some very clear, simple notes:

1. Hot air rises
2. Hot air collides with cool aluminum
3. Cool aluminum transfers heat throughout the frame and never gets hot

I don't need to fix all the heat loss, just the worst of it

[tiny bramble]

It's 500mm between the insulation panels. Printing a test cover now.

Added some ribs to the front for rigidity

[tiny bramble]

One more with holes for inserts to anchor the cable chain

Still need to figure out what to do about the other side, since there are lights and a camera there

[tiny bramble]

Sherpa Mini mount. It's super lightweight, uses one less screw hole than before (you don't need 7 screws for an extruder).

Also has a zip tie anchor for the stepper, if necessary

[feral prawn]

loving it

[short cove]

Could add the rear upright to a Turbiter or you need that space for pcb?

[tiny bramble]

That's an interesting read. But I actually do need that space, either for the PCB or a fan to cool it.

Looking into using a blower on the PCB

[tiny bramble]

Oscar is partly clad in ASA to cover the aluminum in the back. Printing the stuff for the front now.

[tiny bramble]

It's heating up almost decently.

[tiny bramble]

Up to 40C

EBB is staying not bad, too

Temperature is still edging up. This is a very good sign.

[tiny bramble]

Printing more Oscar cladding on Ocar now

[feral prawn]

"You will print your own upgrades!"

[tiny bramble]

Yes. Yes it will!

It's at 43 now, was under 42 when I started this print

[tiny bramble]

Up to 46

[tiny bramble]

EBB keeps about 9C above ambient. Nice.

[feral prawn]

not bad

[tiny bramble]

I have to figure out something new when I switch over to the Sherpa Mini, but that can wait until I figure it out

I cannot complain about how it's printing now. Just lovely.

[tiny bramble]

Now that it's getting hot, I can get back to what I was doing last week, which was printing and testing those struts.

More cladding is done printing. Up to 48.5C

[tiny bramble]

Last of the cladding I've planned on is in. It heats up pretty quickly now.

Yeah, it looks like I'll get to see the exhaust fan kick in

[bronze wagon]

coolness

[tiny bramble]

yeah, it's over 42C when I started the print. Usually gains quite a bit from there.

Folks, I think I've pretty much set out to accomplish what I meant to accomplish with Oscar.

https://tenor.com/view/catrave-gif-4513998

[tiny bramble]

First strut came off Oscar beautifully. No pics. Going back to bed.

[tiny bramble]

Second strut, not so great. Z1 stepper is a little finicky. I think it's a loose connection.

Oh, and I started printing the parts I'll need to switch to 4mm dowels as a test

[bronze wagon]

You're rocking along. 👍👍👍👍

[tiny bramble]

I felt pretty stalled out for a bit, so this is a nice change

[bronze wagon]

I hear ya. I'm hoping to get a chance to move forward this weekend.

[tiny bramble]

I love this double-paned door on Oscar. It's made of extrusions with a 3mm panel in the middle and another 3mm panel on the outside. The outside one is important because of all the metal in the door releasing heat.

[feral prawn]

and pics?

[tiny bramble]

Let me see if I can find one. It's printing right now, so I can't open it up to take pics all around

Gaskets, light switch, and latch mechanism.

[feral prawn]

a big box

[tiny bramble]

Very

12mm birch on the top, bottom, and back. 6mm on front and sides.

The side panels technically come off, but it's a PITA

AHA! The inside.

[feral prawn]

how big are the lights

[tiny bramble]

They've been changed out. These are old pics. The switch-triggered lights are a daylight on a stick, so 18 LEDs. The controlled lights are daylight on a matchstick, 12 LEDs.

[tiny bramble]

Yellow ASA came with moisture. It's in the dryer now. 😦

The bearing stacks seem good so far. Dowels required a ton of standing, but that's nbd.

Biggest thing is going to be waiting for this ASA to dry out...

[tiny bramble]

60+ grams each, over 150mm wide. No warp. HAHAHA

[feral prawn]

me jelly

[tiny bramble]

https://tenor.com/view/jelly-bean-candy-candies-gif-3971594

Printing the second set of struts

Dry yellow ASA in three hours

OT: Also killing the heck out of the OmniBox docs today

[tiny bramble]

last brace printing and then i can test tomorrow

[tiny bramble]

Big Bird

• Finished with the 4mm dowel/F624 bearing proof of concept design.
• Exported all the STLs and finishing printing the right side for testing.

Oscar

• Printed all the struts
• About to start accel testing

With oscar, I'm only going to do Y axis testing, since the struts will be mounted that way.

[tiny bramble]

Zero difference with strut style one. I took of the perpendicularly machined brackets and am testing again.

[tiny bramble]

F624 fit tests went perfectly

Tests so far:
Best: metal
2nd best: new struts
Okay: old struts

IOW, use brackets if you've got 'em

[feral prawn]

what are the metal ones you're using

and what settings did you use on the printed ones

(I think it would make a nice article)

[tiny bramble]

Agreed

The metal ones are the perpendicularly machined ones, like the Ender 5 comes with but made by Misumi. The kind I sent you.

The printed ones were all printed with ABS, 4mm walls, 20% cubic infill, 0.2mm layers.

[feral prawn]

thank you

I think I might attempt to resquare mine

[tiny bramble]

Base

Struts 1 (old) / Struts 2 (new)

Strut 1 with bracket / Strut 2 with bracket

That rattling at the end is silly and annoying. I think it's something loose on the frame.

No idea why strut2 with bracket looks terrible

[feral prawn]

base is with bracket?

[tiny bramble]

correct