Are Y-Axis and X-Axis perfect 90 Degrees?

[Aiph5u (Aiph5u (not affiliated with Onefinity))]

Hey Pat, hey all,

@PezWoodworks

[…] after homing at startup I almost always Probe XYZ on the corner of two X/Y permanent fences on my wasteboard that I use to butt all my jigs (cut by the CNC) up against. […] So, although the stall homing isn’t perfect, is there something I’m missing by not having the upgraded sensors??

You are totally right. By using the XYZ Touch probe, you bypass the stall homing inacuracy, as discussed e.g. in this thread the other day

@Aiph5u

On a Standard Series Onefinity CNC machine, there are two ways to get acceptable positioning repeatability: Either

1. Retrofitting inductive proximity sensors as limit switches or

2. using the Three-axis Touch Probe instead of inaccurate stall homing, either on a fixed block or jig, or on the workpiece itself, and subsequently only relying on the workpiece coordinates.

@Aiph5u

what @ChrisM suggested above, is to clamp a block somewhere on your workarea, that can be left permanently there, away from your work, and to use the touch probe on this block in order to substitute homing with a more reliable method. Unlike when using stall homing, this block never moves and repeatability should be excellent.