I would like to improve the quality of my prints. At present each solid layer is uneven and stripy with thick and thin lines scattered randomly across the surface. Occasionally get what looks like a missed line or a doubled one.
My printer is K8203 and 4 direct extrusion on 1.75 filament ‘upgraded’ from the K8200 original.
X and Y now print in 1/32 steps
The controller is set up
Function Driver Reference voltage
Extruder DRV8825 0.9
Z Axis A4988 0.56
Y Axis DRV8825 0.78
X Axis DRV8825 0.78
Firmware modified accordingly.
Prior to changing to 1/32 step I was on the default 1/16. No discernible difference
Extruder temperatures 195 to 205 seem to have little effect on quality
Does ‘extrusion multiplier’ have any effect on the output?.
The bead laid down is a succession of little blobs (presumably from each step of the motor) rather than a smooth bead which resulted from the original big wheel design (did the gear train have a sort of flywheel effect, smoothing out the motor’s jerkiness? ).
Are the reference voltage values correct – can they have the effect I’ve noticed if incorrect?
Is there any other parameter I have missed which may have contributed to my problem?
Can the step frequency of the extruder motor be increased? In software? New motor?