First time printing with a prusa

[edgy flame]

I have done all of the calibration and setup for the Presa mk3 that I just got and I tried to start a print. It decided it needs to do bed leveling before the print but after the filament heats up. This cause the print head to be like 2.5 mm off the build plate. How do you get around this issue <@&1122587817768398938>

[atomic quarry]

that seems very odd, if you set the first layer, and your code is not altered to have the z offset be higher, then it should just work. can you put your start code here and some photos of the toolhead?

[edgy flame]

I agree that this is very odd. I got the Prusa slicer and sliced a stl that I had. I only changed a few setting like Temps bc I'm familiar with the filament I have.
How would I get the code hypothetically?

[sleek bolt]

whats your z offset set to right now?

[sleek bolt]

also i really should readjust my probe bc my mk3 is set to -2.05mm z offset haha

[sleek bolt]

straige. whats your z offset set to right now?

if u click off int he first few layers it should let you "live adjust z"

[edgy flame]

Ah, lmfao. That's cute. Alr

[edgy flame]

Should I do that or just reslice the gcode

[sleek bolt]

the mk3(s+ i think ur using) uses an inductive probe so the nozzle temp shouldn't affect it as much but the bed temp does

[sleek bolt]

what is the offset on ur mk3 set to right now

[edgy flame]

The issue is that given the hotend is hot, it melts the filament and it oozes out when it's doing that so it thinks that where the end of the nozzle is

[sleek bolt]

it probes with the pinda on the side

not with the nozzle

[edgy flame]

Erm, stock? I'll check

[sleek bolt]

so that shouldn't affect it

[sleek bolt]

stock is going to be 0mm so maybe you should adjust that? i suppose?

idk

[edgy flame]

What is the z offset under for the slicer?

[sleek bolt]

its not set in slicer

its set on the printer

at least thats how its been with my prusa for the last 3 years so... i hope i didn't mess up all this time

[edgy flame]

Ah, mk. Where would I go in the printer to adjust that setting then

[sleek bolt]

if its during a print, you should see a live adjust setting

like if you click off the info screen with temps and stuff

above "Tune" you should see "Live Adjust Z"

[edgy flame]

Ah, I found that. Would I have to do that for every print then?

[sleek bolt]

otherwise i think its under calibration and then there should be something for like first layer calibration?

[sleek bolt]

i think it should save to eeprom

[chilly tree]

https://help.prusa3d.com/article/live-adjust-z_112427

[sleek bolt]

i don't remember this one because i keep forgetting to turn off my printer and when i do i don't keep track haha

[sleek bolt]

yesyes

[edgy flame]

Ah, yeah. That's the weird part. I was working on the printer yesterday and it did the calibration perfectly and the first layer calibration thing was perfect too

[sleek bolt]

huh

[chilly tree]

You should only have the do it every so often in theory.

However, if you have first layer issues it will need readjusting

[edgy flame]

Thank you

[chilly tree]

That’s why you can manually adjust the Z “live”.

[edgy flame]

I had just built it and was doing the calibration and it did the bed adhesion calibration or whatever fine so ik it prints lol

[sleek bolt]

i see

[chilly tree]

Doing a full calibration will set the offset back to zero iirc.

[sleek bolt]

you can select whether its start from current value or start at 0

at least for first layer cal

[edgy flame]

This will work! Thank you both very much!!!

[chilly tree]

That may be. It’s been a little while since I’ve used a prusa.

[sleek bolt]

i see. my prusa is my daily driver although right now im having like hotend issues (e3d revo) and extruder issues

like i get random slipping

could be filament also not too sure

nozzles is definitely partially clogged but i kinda broke all my acupuncture needle after unclogging it for like the 20th time

2nd nozzle also haha

but thats me going on a side tangent

[edgy flame]

I finally got the z offset working?

[edgy flame]

This worked well and I printed a 20mm cube to make sure everything was working and this was my result. Any clue of what's happening here?

[sleek bolt]

is that the top layer?

i see like charred bits

im not exactly sure whats happening though

[edgy flame]

yes, its the top

[edgy flame]

i did another cube b4 this one which had similar articacting on the top but not as bad. the interesting thing to me was that there was a blob of slightly chard blob on the side in the middle of hight of the print

and i don't get why it's so bad because it's only being printed at like 200-209 C

[sleek bolt]

is this PLA btw?

are your settings just stock prusa settings also?

[edgy flame]

Yes, its pla

[edgy flame]

When I go into the slicer it's always at abs so I change that to pla but then I have to go and change the temps so I set the hotend to like 205 I believe and the bed to 60

[sleek bolt]

i think you can select the filament

but i doubt ABS has different settings other than that with stock prusaslicer profiles

to me it looks like theres a layer shift

but under that im not too sure

have you checked your fan settings?

you might not be printing with fan on

at all

[edgy flame]

I checked the pruseslicer for the fan the first time and it was automatically on. I was a little concerned to not see the percent like I'm used to for cura but the fans are on during the print, I can kinda hear them

[sleek bolt]

oh what theres no percentage?

are you in expert mode for prusa slicer?

heres what it looks like for petg but this is what you should see

[edgy flame]

yea, i was confused too, there was only a on of off button

[edgy flame]

yes, im in expert mode

[sleek bolt]

this is what it looks like in simple mode

[sleek bolt]

strange

can i see a screenshot

[edgy flame]

Hm, that makes sense

[sleek bolt]

because also in advanced mode these settings do not show up

[edgy flame]

yea, thats what i see

[sleek bolt]

but in expert mode they do

[edgy flame]

hmm

[sleek bolt]

afaik prusaslicer uses 20% fan for ABS

ok 15-25%

[edgy flame]

i would. I tried to do another print today but the sd card wasn't being found on my laptop so I went to the tech department. They tried restarting my computer and there seemed to be no life in it anymore, like full black screen lmao. I will be able to see better once i get the computer back though

[edgy flame]

Ah, so with expert mode i should crank that up to 100 then right?

[sleek bolt]

i think 100% will work for PLA yeah

i usually print PLA (depending on geometry) between like 60-100%

[edgy flame]

ok, solid, thanks for helping me out with that! I look forward to getting my computer back and trying that out!

[sleek bolt]

alright. if it doesn't work then im kinda stumped for now also lol