Any good tips for printing TPE (88)? I see a lot of contradictory info - some say heated bed, some say unheated, some say textured PEI is thre worst material to print on but that's the only material I managed to print something at all on (smooth or textured glass is worse). 10-20mm/s, no difference, it just loosens on layer 2, and is generally gummy and disgusting (even dried in dryer!).
Please only direct experience, articles contradict each other.
"Gummy and disgusting" is outside my experience and definitely doesn’t sound right. Was the one foot you managed to print also "gummy"? Did that happen to be the first print from a freshly opened spool? I'm wondering if there are some moisture issues at play.
I'm probably no help with adhesion; all my TPU printing was on an older pre-PEI machine. That one used a borosilicate glass plate coated with hair spray. The bed was likely 60°C but I'd need to load up the profile to verify.
@RickRae it was this way after like six hours in a filament dryer :( I'm really at my wits' end. Maybe it's just shitty filament, I only have this sample to test.
@stooovie
Huh. And the one foot you managed to print, does that one also feel "gummy"? Different in any way from the various failures? I dunno, maybe I'm getting hung up on something that doesn't matter.
Losing it at the second layer... how does the first layer look/feel? Is it laid down evenly, does it look (and feel, if you run your finger over it) smooth, is the thickness right?
Speaking of which, how about first and subsequent layer heights (0.4 nozzle), something conservative?
@bishma see? even this is in direct opposition to almost every other guide - they all state textured PEI (Prusa's "textured sheet") is not recommended for TPU/E. Trying glue now, like an animal :) Thanks!
@stooovie@bishma I print 95a TPU on the Prusa textured PEI sheet with no issues. I usually have to peel it off at the end. When you say it comes off your bed, does it just start sliding around while it’s printing, or is it getting physically pulled off, like the filament is too solid and dragging the print like a rope?
I print Inland TPU at 230 C on a 50 C heated bed. The Generic FLEX in PrusaSlicer uses 240 C for the hotend.
It's a rubber foot for the printer. I have managed to print 1 on the textured PEI sheet, all subsequent attempts failed. The beds are perfectly cleaned with soap and/or IPA
It's a rubber foot for the printer. I have managed to print 1 on the textured PEI sheet, all subsequent attempts failed. The beds are perfectly cleaned with soap and/or IPA
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