Look Ma… no support material…
…was expecting this print to fail spectacularly but somehow it managed a 4cm bridge?!
With pet 4cm don’t sag at all for me. The perfect bridging setup for me so far is
Very sharp tipped nozzle
PET
Precise material amount
No heatchamber
Medium speed
@Bjorn_Marl I tried some PET-G (from DiamondAge) recently. It looked promising as far as bridging was concerned, but I got some warping printing on gluestick on glass at 60 C. Bumping the heated bed to 80C fixed the warping.
I was extruding at 240C and the lack of fumes was nice compared with ABS.
What do you use to stick it to the bed?
@Kit_Adams we gave up on glue stick as it made the bottom of the prints uneven, and in the end the adhesion was pretty hit and miss.
Tried hairspray, which worked pretty well for PLA but not so good for other materials.
Have now moved on to a PVA/Water mix generally at a 1:10 ratio, but ranking up the PVA for trickier materials. The only thing so far we’ve had adhesion issues with is Nylon and I think there we need to try a different tack.
@Kit_Adams Glue stick just like you, so far PET is among the easiest materials to use imo