/diy/ - Do It Yourself

>>776574
horizontal resolution is a function of stepper motor steps and gear ratio and all between the motor and your extruder.
For my mendel max it is at 1/80mm per step but that is only the positioning accuracy you could theoretically gain... if the belts and gears and all the stuff between printhead and motor would not add errors.
Then there is also the filament flow and temperature which affects the resolution by the already mentioned: plus/minus "nozzle size * 60% to 80%". So my 0.5 nozzle will give me +- 0.4 in horizontal precision (x, y).
That is why i print screw holes around 0.25mm bigger in diameter and let the screw do the rest. it will be still a tight fit in most cases.


pic related. it's a recent testprint at 0.4mm layer height. obviously not smooth enough for that size but considering the print times it's good.
the small one printed in 90 minutes, the bigger one in 3 hours.