Cube with pointy corners - PETG
I am Testprinting a cube 60 x 60 x 20 for testing of warping.
Warping on bed is solved.
Temperature raise in te chamber and hotter first layer.
But, have a problem on the corders, which don't touch the bed.
They get pointy.
Have tried a different infills, gyroid and cube, have tried 40 - 15%.
MaxVolSpeed from 20 - 25, the pics is 25 mm/s MVS no difference.
Speed from 100-140, it does not make much difference.
Filament is very dry.
I think myself it is a temp issue, the outside shrinks to inside and the corners not.
This is why I tried less % infill and different infills.
I hope you can help me here.
Just a guy with a Core One L on a 3D Journey
RE: Cube with pointy corners - PETG
For something like this, changing the infill won't really help. The corners are curling due to thermal contraction. Also, need to be careful with PETG and raising the chamber temp, this not only compounds the problem but could cause partial nozzle clogs.
I would suggest having chamber temperature off, increase perimeter cooling and raise the minimum layer time. If you attach your 3MF project file (you'll need to zip it first) I can tweak the parameters for you.