@jhanna wrote:
Please see attached results. Prior to running the test I have squared the frame by loosening / tightening rail screws method described in the wiki. The front of both Y plates contact the front frame. If anything the left Y plate wants to have a few thou gap but I held it against the front frame when I powered the motors and it stayed. The X extrusion is shimmed to square it to the Y carriages and Y extrusions shimmed to square them to the front and back frames. Spindle is trammed and wasteboard flattened. Belt stretch was calibrated. I used 1/4” flat endmill #201 at 0.1” doc and 54 ipm in 3/4” MDF. It’s really hard to measure corner to corner of the Y extrusions but front left to back right may be 1/32” longer than the other way. What steps do you guys recommend I take next to improve the squareness? Thanks!
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