printing and building HMG7 | 3D Printing | Page 1

cold fern Jan 26, 2023, 6:38 PM

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I'm building the hero me gen 7 fan mount/gantry or whatever you want to call it. The inserts and screws arrive tommorow!

cold fern Jan 26, 2023, 7:43 PM

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also, after that fan duct prints, there will only be 2 models left to print: the hotend skirt and cable management tower!

cold fern Jan 26, 2023, 8:21 PM

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almost there!

cold fern Jan 26, 2023, 10:20 PM

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UPDATE: it printed, but i think ill have to reprint it, because a piece broke off lol

median bramble Jan 27, 2023, 4:06 AM

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hmm u might be missing another part to connect the bltouch holder to

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you need a wing to attach the bltouch mount to

cold fern Jan 27, 2023, 5:36 AM

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Ah

cold fern Jan 27, 2023, 11:44 AM

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median bramble you need a wing to attach the bltouch mount to

U sure?

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I think that the og bltouch doesn't require one

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(Yes, i have a clone, but it's basically the same)

median bramble Jan 27, 2023, 11:48 AM

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hmm the hmg7 doesn't attach directly to the body

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i mean the bltouch

cold fern Jan 27, 2023, 4:02 PM

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take 2 with custom supports! this way i won't need to cut off the hanging filament

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maybe i just don't have enough cooling?

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i think it was only 20% last time

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median bramble Jan 27, 2023, 4:03 PM

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oh yeah those need supports

cold fern Jan 27, 2023, 4:05 PM

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median bramble oh yeah those need supports

do you think i should also put a little bit of support on the insides of these?

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you know

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where the screws go

median bramble Jan 27, 2023, 4:06 PM

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depends on your bridging

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i didn't put any

cold fern Jan 27, 2023, 4:06 PM

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last time there was some hanging

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prob because it isn't really a bridge, it's a slope

cold fern Jan 28, 2023, 12:09 AM

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Update: i printed a new one with supports. I made the supports a bit too close so I sanded the remains down.

cold fern Jan 28, 2023, 3:25 PM

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Flushing da inserts down

median bramble Jan 29, 2023, 5:11 AM

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nice!

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i just reprinted fan ducts and a new mount for pinda

cold fern Jan 29, 2023, 1:55 PM

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bruh

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so i ran into a problem

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i don't have short enough m3 screws to screw in the skirt

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tho what is the skirt even for? it seems like it doesn't serve any purpose

cold fern Jan 29, 2023, 5:36 PM

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@median bramble do u wanna see how far I got?

median bramble Jan 29, 2023, 5:38 PM

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sure!

median bramble Jan 29, 2023, 5:38 PM

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cold fern tho what is the skirt even for? it seems like it doesn't serve any purpose

is this for v6?

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if yes i'll show ya where the skirt goes

cold fern Jan 29, 2023, 5:38 PM

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Uhh

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I don't have v6

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Maybe I actually don't need the skirt lol

median bramble Jan 29, 2023, 5:39 PM

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oh hmm then i'm not sure

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but i can show you where my skirt went

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cold fern Jan 29, 2023, 5:39 PM

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It goes on the bottom of the base

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But what is it for?

median bramble Jan 29, 2023, 5:39 PM

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i just screwed it below, it keeps the fan from blowing air downwards

cold fern Jan 29, 2023, 5:39 PM

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Ohh

median bramble Jan 29, 2023, 5:39 PM

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isolate cooling ig

cold fern Jan 29, 2023, 5:39 PM

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That's smart

median bramble Jan 29, 2023, 5:40 PM

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i just changed the fan ducts today

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and installed that pinda you see on the back right

cold fern Jan 29, 2023, 5:40 PM

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O

median bramble Jan 29, 2023, 5:40 PM

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i hated the other set of fan ducts

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cold fern Jan 29, 2023, 5:41 PM

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So this is how far I got

median bramble Jan 29, 2023, 5:41 PM

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this was old set which looked ugly due to bridges and printing angle

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yay!

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you can try looking at other wings to get the bltouch closer

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then you can probe more of the bed

cold fern Jan 29, 2023, 5:41 PM

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Ig

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Idk

median bramble Jan 29, 2023, 5:41 PM

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the wings are easily swappable

cold fern Jan 29, 2023, 5:41 PM

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I just chose medium

median bramble Jan 29, 2023, 5:41 PM

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also keeping it this far out means it might shake more

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mine vibrated the hell out of me till i went for pinda

cold fern Jan 29, 2023, 5:42 PM

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Well, my gantry doesn't vibrate, so I don't think this will be a problem

median bramble Jan 29, 2023, 5:43 PM

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oh the gantry vibrating is not the issue

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my dual 5015 at 100% vibrates like hell

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and my 4020 is high rpm too

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i'll probably do bridging test one day when i have time to see how well it cools

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aiming for 25cm bridge

cold fern Jan 29, 2023, 5:43 PM

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My 4010 is missing 3 fins lol

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One snapped off so I had to snap off 2 more so it is balanced

median bramble Jan 29, 2023, 5:44 PM

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ermmm

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you might want to get a better one

cold fern Jan 29, 2023, 5:44 PM

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Well, it was my fault

median bramble Jan 29, 2023, 5:44 PM

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one thing i noticed is you need more static pressure for this setup

cold fern Jan 29, 2023, 5:44 PM

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What do you mean?

median bramble Jan 29, 2023, 5:44 PM

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because you're just blowing into a hole with no exit

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the air is going in with nowhere it really exit

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anyway if you get new fans, get good ones

cold fern Jan 29, 2023, 5:45 PM

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It has a bit of room there

median bramble Jan 29, 2023, 5:45 PM

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might be quieter than the og, and defo push moe air

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oh yeah you use the stock hotened

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the v6 is quite snug

cold fern Jan 29, 2023, 5:46 PM

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Also

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There is a small issue with the cable management tower

median bramble Jan 29, 2023, 5:47 PM

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oh mine doesn't fit at all

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i didn't bother installing it

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it clashes with my extruder holder

cold fern Jan 29, 2023, 5:47 PM

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Same

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They should make a spacer for it

median bramble Jan 29, 2023, 5:48 PM

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i honestly am just stuck with it because i'm lazy to rebuild a new design

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and i managed to get it perfect today

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so that's good

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the new ducts i printed are studier and with a better print orientation

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the pinda mount i basically remixed it myself

cold fern Jan 29, 2023, 5:48 PM

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I think I will need to cut a longer ptfe tube

median bramble Jan 29, 2023, 5:49 PM

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sorry i really dislike the hmg7 haha

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it works well when it does

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but is a pain in the ass to install

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i think you're feeling it with the different screws u need

cold fern Jan 29, 2023, 5:49 PM

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Cuz in my old setup the extruder was closer to the hotend

median bramble Jan 29, 2023, 5:49 PM

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the bltouch wings are the weakest part of the design, super thin so they vibrate even more

cold fern Jan 29, 2023, 5:50 PM

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In this setup the hotend is like 1 cm away from the extruder.

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In my old setup it was like 2mm

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And the tube was cut to that

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Hmm

median bramble Jan 29, 2023, 5:52 PM

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cold fern In this setup the hotend is like 1 cm away from the extruder.

thats kinda good

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shorter distance is a good thing

cold fern Jan 29, 2023, 5:52 PM

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Dud

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It's longer now

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Lmao

median bramble Jan 29, 2023, 5:53 PM

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oh wot

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ahh yes

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i get u now

cold fern Jan 29, 2023, 5:53 PM

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Soo

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I need a new tube now

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Cuz this one is 1 cm too short

median bramble Jan 29, 2023, 5:56 PM

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if u dont have a cutter

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u can alw just print one

cold fern Jan 29, 2023, 5:58 PM

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Lmao, I just found m3 screws, but they are like only 3 mm long

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This is the longest ptfe tube I have left.

median bramble Jan 29, 2023, 6:02 PM

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cold fern This is the longest ptfe tube I have left.

thats more than 1 cm

cold fern Jan 29, 2023, 6:03 PM

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I won't weld ptfe tubes together lol

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But I think this is long enough for a whole new one

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@median bramble i have an idea

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I think the screws on the board cover are the right size...

median bramble Jan 29, 2023, 6:11 PM

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cold fern But I think this is long enough for a whole new one

looks like

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i can't tell because of perspective

cold fern Jan 29, 2023, 6:11 PM

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Is this a good sacrifise?

median bramble Jan 29, 2023, 6:11 PM

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cold fern I think the screws on the board cover are the right size...

wait what printer u got again, one of the enders yeh

cold fern Jan 29, 2023, 6:11 PM

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Ender 3

median bramble Jan 29, 2023, 6:12 PM

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ahh cool

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i have no idea the hardware at the bottom

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i basically rebuilt my printer's base case

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only kept the frame and everything else got swapped out

cold fern Jan 29, 2023, 6:14 PM

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Shit

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The screws on the board cover might be too short

cold fern Jan 30, 2023, 1:01 AM

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I have yet ANOTHER issue

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The 4010 fan doesn't wanna fit - the fan duct is blocking it.

cold fern Jan 30, 2023, 2:23 PM

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It's complete.

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@median bramble look

median bramble Jan 30, 2023, 2:24 PM

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woohoo!

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congrats

cold fern Jan 30, 2023, 2:25 PM

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There is one last issue tho...

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The bl touch wing prevents the x endstop from being pressed

median bramble Jan 30, 2023, 6:23 PM

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cold fern The bl touch wing prevents the x endstop from being pressed

you'll have to mount it on the other side

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or... idk man haha

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told ya the design is iffy

cold fern Jan 30, 2023, 6:53 PM

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something is very wrong

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now when i screw in the wing, one of the threaded inserts… starts to come out

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oh wait

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i used a way too long screw

#printing and building HMG7