X axis drift apparent at higher speeds

[ednisley]

@Dannym

using the same active edge

Good catch!

More details on what to check:

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?

@Dannym

might just be backlash

AFAICT, the Scanning Offset Adjustment corrects for the constant-ish time delay through the HV power supply that causes a linearly increasing offset with speed.

Mechanical backlash would be constant with speed, so the offset would remain the same. I think the Initial Offset value could compensate for backlash, but it’s likely to decrease linearly with speed.