Geeetech

Hi!

I've had my A10 for about 6 weeks now and have been working towards getting the print quality better.

I have one problem that I don't know where to start, and it looks like z axis banding, but the "period" of the bands is quite wide. Please see the picture of what should be a straight edge cylinder - and there are wobbles in the print.

Any help in where to start getting this sorted would be much appreciated.

The period looks pretty close to 8mm or so. The 2mm pitch 4 start z axis lead screw will give 8mm of travel per one full revolution. Could it be that it is either bent or possibly misaligned with z axis motor shaft via the coupling? This could cause binding or tightness in some places, put stresses then on your x axis and possibly yank it around a little to produce your wobble? Im just guessing here, but check your screw straightness and alignment with the other elements - motor and coupling, brass lead screw nut, and top bearing.