Bret, I really like your machine. Having built/rebuilt numerous MPCNC’s in the past, I’ve got quite the collection of old plastic and conduit in a couple of totes and I rather enjoy mocking up, and mulling over, bits and pieces of a “new” machine with stock, and sometimes altered, MPCNC parts from the junkbox. My now defunct MPCNC-inspired CoreXY (https://www.thingiverse.com/thing:2375050) and CamSlider (https://www.thingiverse.com/thing:1984162) machines came about that way. And I set up and shared my experiences with an EleksmakerA3 and Grbl-based laser machine for my daughter in a recent thread (https://www.v1engineering.com/forum/topic/grbl-m4-and-lifhtburn-closed-shapes-not/) here on the forum. I see a lot of similarity in your plastic-and-conduit machine and that lightweight acrylic-and-extrusion Eleksmaker machine… but yours is far beefier-looking and has a fully implemented Z-axis. And the obvious MPCNC-inspired look and near-identical electrics of it all makes it an instant winner in my eyes.
Have you shared/documented this machine build anywhere? I’m always looking for fun, new ways to play with this stuff and keep my mind – and Prusa printer – active. I’ve got all the parts (other than plastic) I would need to give it a go… and I, for one, would love to see and hear more about your machine.