Failed print with 0.2mm layer
Hi!
Newcomer and my first post.
I've been having i3-MK3S for a few weeks and doing some simple prints without major issues.
Yesterday I downloaded rasPi camera case from HERE and tried to print it with "02.mm detail" preset from PrusaSlicer. Despite several attempts and tweaking liveZ value in range -1.2<>-1.0 I failed every time in similar way. Below is a photo of whats happening - it looks very messy. Can you please advice based on this picture ?
I'm printing with stock prusament and default PrusaSlicer settings.
thanks !
Best Answer by bobstro:
[...] Fourtunatelly I have a smooth bed too, and I'll try it today.
Give it a wash with Dawn as well and do your Live-Z calibration. If you have not already done so, try using Jeff Jordan's "Life Adjust" procedure for calibrating your Live-Z setting. It is much easier to use and understand than the on-board routine and much easier to make mid-print adjustments accurately with. In general, start high (less negative) and work lower (more negative) in large increments (e.g. 0.1mm) until the filament starts to stick on its own. When you've got your Live-Z setting adjusted properly, you should be able to gently rub the extruded lines on the PEI surface without dislodging them. Then start lowering (more negative) the level until there are no gaps between layers. You should not be able to peel the lines apart after printing, but the top should be regular.
What worries me more is that these top layers seem messy/smeared too much - especially visible on the part with hole.
If you are having adhesion problems, don't try fixing other issues until the part holds well throughout the print. If the part is moving, all bets are off in terms of other results. Your pic looks typical of what you'll see with poor adhesion.
RE: Failed print with 0.2mm layer
PLA can be problematic on the textured sheet. You can try bumping bed temps. The best fix many have found is to give it a wash under the kitchen sink with Dawn dish soap (or your local equivalent). Use a clean paper towel to scrub it, another to dry it. Do nothing else and re-calibrate your Live-Z.
For PLA, the smooth PEI print surface can be much easier to work with.
and miscellaneous other tech projects
He is intelligent, but not experienced. His pattern indicates two dimensional thinking. -- Spock in Star Trek: The Wrath of Khan
RE: Failed print with 0.2mm layer
Hello bobstro, thanks for taking time to reply.
Fourtunatelly I have a smooth bed too, and I'll try it today.
What worries me more is that these top layers seem messy/smeared too much - especially visible on the part with hole.
There is also this long streched blob of filament dangling off the other part.
thanks
-michal
RE: Failed print with 0.2mm layer
[...] Fourtunatelly I have a smooth bed too, and I'll try it today.
Give it a wash with Dawn as well and do your Live-Z calibration. If you have not already done so, try using Jeff Jordan's "Life Adjust" procedure for calibrating your Live-Z setting. It is much easier to use and understand than the on-board routine and much easier to make mid-print adjustments accurately with. In general, start high (less negative) and work lower (more negative) in large increments (e.g. 0.1mm) until the filament starts to stick on its own. When you've got your Live-Z setting adjusted properly, you should be able to gently rub the extruded lines on the PEI surface without dislodging them. Then start lowering (more negative) the level until there are no gaps between layers. You should not be able to peel the lines apart after printing, but the top should be regular.
What worries me more is that these top layers seem messy/smeared too much - especially visible on the part with hole.
If you are having adhesion problems, don't try fixing other issues until the part holds well throughout the print. If the part is moving, all bets are off in terms of other results. Your pic looks typical of what you'll see with poor adhesion.
and miscellaneous other tech projects
He is intelligent, but not experienced. His pattern indicates two dimensional thinking. -- Spock in Star Trek: The Wrath of Khan
RE: Failed print with 0.2mm layer
I followed your advice, did the alternate Z calib procedure and printed on smooth bed. Success ! Thanks again.
RE: Failed print with 0.2mm layer
I own 2 textured sheets and 3 smooth I have never had any issues with my smooth sheets with any filament, however one of my textured sheets is good and the other I have to use glue stick when printing PLA on it, the glue works for me. I use Elmer's disappearing purple glue stick to make that sheet work for PLA, however I have no problem with ABS, PETG, ASA or TPU on it, only PLA. just to be clear the glue stick works on that sheet, but I no longer use it for PLA since I have one that's good.
I'm posting this in case using glue might help you if you wanted to use your textured sheet for PLA. The glue simply washes off with warm water and a paper towel when cleaning.
The Filament Whisperer