Print & Cut - Y-Axis Progressively Off?

[ednisley]

@JasonG

a progressive “shift” on the Y-Axis from the top of the bed to the bottom of the bed.

With a Ruida controller, progressive misalignment immediately suggests:

Fixing Skewed Engraving - Configuring a Ruida Controller - LightBurn User Guide

Things to note:

• Either axis driver can be incorrect
• The problem only occurs with specific patterns
• Past performance is no guarantee of future behavior

A (lengthy) previous discussion explores some of the possibilities:

Image shifting and bunching up but cut out is OK

Red-Black 90w Laser Ruida controller engrave 400mm/s 25% Fill 450mm/s 20% Cut 25mm/s 65% Birch ply held down pins belts are tight so are stepper motors When doing a engrave/fill and cut I get the fill shift while the engrave bunches up, cut out in just fine. This is repeatable, and all come out the same, like it was meant to be, how do I attach image?

Pay attention to / back up the original settings:

Laser cutter drift - help would really be appreciated

Ed, you were right. I’ve checked the backups from earliest to now. 22/11/23 x true y false 13/7/26 changed to true from your advice but I failed to see they were different 16/7/26 changed both to false from Nicholas’ advice. Today both false - still cutting as it should. Clearly I have read your initial comment, got giddy reading the x=true and changed the y to match. I never tried both to false until Nicolas told me where I’d gone wrong. I’ve backed up th…