LR3 Y-axis accuracy off by 5mm?

[dos (Daryl)]

@BenP

I did set the mpos_mm to 0
The homing stayed the same

And the G0 X1780 is now 3mm closer to 1780 (1778 actually)!!!

Sounds about right. You probaby need to adjust your steps per mm from there…

Houston we have a problem, belts

Well to my wonderful crew mates, let’s not get me walking the plank over this one. [a pirate walking the plank holding some machinists calipers] Best I can tell we have a belt issue. Our 2mm pitch belt does not seem to be 2mm pitch. I was asked about this during the LR4 beta and blew it off, We have been asked about this many times and blew it off. We have a fixed gear system and calibration should not really be needed. That is only true if all the components are as advertised. I have been u…