Printing 90A Shore TPE on MK3S
I just got a roll of Fillamentum Flexfill TPE 90A (Link) and I'm having serious issues with printing it.
I realize it might not be the best thing to print with FLEX but I'm trying to make a Yet Another Filament Sample
My best results so far were on the smooth PEI sheet with 240°C nozzle and 50°C bed temps but after a couple of layers (usually around the 3rd to 5th) the material seems to warp too much "ripping" the print off the bed.
I'm basically running the Flexfill 92A preset with print speed set to 80%, ambient temp is around 20°C, no enclosure yet (IKEA Lack on order 🙂 )
As for the printer, I'm running a nickel plated copper E3D heater block with a E3D nickel plated copper 0.4mm nozzle everything else is stock.
I've also tried with a brim but that only seemed to make matters worse as the brim basically lifted on the second layer and lifted the corners of the print with it.
The bed adhesion in general seems pretty bad as it requires almost no force to remove the intro line.
I'm going to try one more with skirt and brim and try to get the room temperature up a bit and see how that does.
I'll also try to supply some pictures if this one hits the bin again 🙂
RE: Printing 90A Shore TPE on MK3S
Edit on the above (there seems to be no edit function?)
I actually managed to "fix" my issue by raising the print temperature to 250°C (5 over max specified I usually try to stay within specs but I'll have to rethink that I guess), I think this might be related to the nozzle/heater block I'm using requiring higher temperatures or just my material being wonky.
I've also printed with a 5mm brim and a draft shield but this time even the brim stayed on the PEI sheet so I guess it's just the print temp being too low with my hardware/material combo.