Still trying to print larger objects in ABS
Try simplify3d or cura slicing. It solved my string issue very easily.
Still trying to print larger objects in ABS but something goes wrong…
I’m able to print small objects like a cube with 2x2x2 cm edge lenght but I fail with larger objects.
The objects in the pictures are printed in ABS @ 280°C, with about 50mm/s 100% infill, layer hight 0.2mm. Heat be ist set to 100°C.
With 100% infill, the print head crashes into plastic that sticks above the layer hight when moving over the printed area and causes the steppers to loose steps which results in mialignment of layers.
Maybe I push out too much material. It could also be related to the PEI sheet that is not entirely flat, in some areas the print head gets too close to the beed.
Any ideas what could be wrong?
I used slic3r, 1st layer hight .25mm. Tried with and without retraction.
it’s not a retraction issue, I switched it off, no change. The problem is not oozing, what looks like oozing is actually the infill area of the print that moved over an empty area because the nozzle crashed into the part what caused the steppers to loos steps (center of origin moved).
I also tried cura engine in repetier (same results), should I use Cura SW and export gcode?
I think it could be related with too much material flowing, because the proble ist related with 100% infill
Yes slice and export gcode
Run from sd card if possible
I use ACME 10mmx2 -> 2mm per revolution, 1.8 degree steppers 16 mico steps. 200 steps x 16 = 3200 micro steps/revolution -> 1600 mico steps/mm
I printed with 0.2 mm layer hight -> 320 micro steps / layer. I think that should be ok unless the steppers loose steps but I didn’t notice that.
I did that on the side entering the flint extruder, I marked a 100mm section and adjusted the steps until the filament traveled 100mm . It’s 145 steps/mm.
If you use repeteir host, turn down your feed rate. Calibrating the e steps when the extruder is in free air is different than when printing, as there is less back pressure.