I a'm building this MPCNC, does anyone have any experience with this machine ?

I a’m building this MPCNC, does anyone have any experience with this machine ?

No experience, but, after you asked I watched some videos and ‘some old guy coding’ has about 30 videos starting with design up through use/crashes.

Good old skate bearings. Justifying the cost of decent linear slides with their frustration factor since day one. heh