: same story, it is a pain to remove them, and when you remove it you can break a small printed feature next to it
I had a bug in the slicer for the speed of the supports that was way too fast. But the support produced was interesting because it was super easy to remove it due to the under extrusion, so the next idea was: I need to put a big nozzle to check how far I can reduce it and make easy to remove supports.
This thing really works well, strong enough to support the part to be printed and brittle to ease the supports removal (additionally you use less filament
So follows some settings using PLA from ArianePlast @ 205 to 210C (about 1.5 Kg tested with various models) for the extrusion flow:
- 0.8mm nozzle: -40 to -50% for the Supports Bed/Object Pillars. I kept 0 to -40% for the Top/Bottom interface layers. Extrusion width about 0.4mm, the under extrusion is quiet severe in this case, but the support is strong enough.
- 0.6mm nozzle: -30 to -25% for the Supports Bed/Object Pillars. I kept 0 to -20% for the Top/Bottom interface layers. Extrusion width about 0.4mm, the under extrusion is under control, you can reduce a bit further.
- 0.4mm nozzle: 0 to -20% for the Supports Bed/Object Pillars. I kept 0 to -10% for the Top/Bottom interface layers.
- 0.3mm nozzle: not played with it, already brittle enough.