weird filament behaviour / need help
I do have a 3D printer with the revo roto with obxidian nozzle 0,4 and trying to print spectrum premium petg.
when I want to generat e a filament setup like it is often described in the net I get. the
result extrusion factor of exact one.
Retract about 1.25 to 1.5mm
Temperature range spec = 230 to 255°C
printing speed is 60mm/s except outer perimeter with 18mm/s infill is 80mm/s
main problem is visible horizontal lines or bad outer wall quality , (left cube)
I get a better result when I print outer wall first (right cube)
but if I want to print something with a spike at top it is a lot overextrusion like on top of this pyramide
only way I get that better is to lower extrusion multiplier to 0.85
this also helps the wall quality but only on vertikal walls, if I want to print something complex I will geht wholes in the print
what I am doing wrong ?
RE:
In the post above, the cubes are twisted, right-->bad ------- left-->better