I'm trying to print this part out of Filament-PM TPE32 on a Prusa Mk4 with a textured sheet and I'm not having much luck.
The part is a bellows with a 100%-infill plate at the top and at the bottom. Despite leaving a giant brim inside and out, the whole thing has minimal adhesion to the bed and invariably comes off when the print reaches the top-heavy section of the part.
It's maybe the 10th print I'm attempting, slowly trying to dial in the parameters. I had to crank up the bed temperature to 47 degrees for the first layer to achieve any kind of adhesion, which is odd. I have other TPU/TPE filaments that stick better (but they're too hard for my purpose).
I could achieve slightly better adhesion by cranking up the nozzle temperature above 235C, but then it start stringing so bad it leaves raised obstacles almost immediately on the first layer while building the brim, and then the head slams into the obstacles and dislodges the brim at the second layer. The only way to get a good brim (and a good part) is to lower the nozzle temperature to 223C.
Clearly the problem is that the Prusa Mk4 is a bed slinger: it shakes the part loose. We have a Prusa XL on the way that should take care of the problem, but it's coming in 3 weeks and I need the part now.
Before I slather the bed sheet generously with glue, any advise to make this print succeed on the little Mk4 without making a gooey mess with the glue?
Here's the PrusaSlicer project file if you're interested.
So I don't actually have a 3D printer, but from my humble perspective, why don't you just flip the print and print it on a separate orientation. So the top heavy part is now on the bottom or add extra struts for support to increase the mass of the unstable portion if you are not able to rotate the orientation of the print
It's heavy on both sides. Also, I need to keep this thin wall facing up because otherwise it would be essentially impossible to remove from the support. And I need the bits facing up to be very clean, while I can afford some nastiness on the bit that faces down after I'm done removing and cleaning the supports.
If you're open for more unorthodox rambling, is it possible that you can pause the printhead once you've printed the initial base area and then tape that down to the table or apply hot glue or another temporary adhesive to provide rigidity?