Add not cutting square to the list of things my machine won't do. It's a deepgroove, from eBay, they come with no documentation whatsoever.
I'm just getting the hang of the design side, drawing a 4-inch square in a cad prgoram and converting it to gcode and watchign it go on the sim and then... big moment, run it on teh machine and... out pops something that's not a square. A 4-inch square is about a 16th out of square.
So I think, 'Hmmm, what's causing that?' And I start tweaking the carriage frames a bit. Got them shimmed up for some compensation, let's see.... nope, still out of square.
I'm cutting half-inch plywood with quarter-inch passes, it ought to cut through like butter, but it's not square. SO I redce both speed and depth and make more passes. Better but still nto square. I can get about a 64th of an inch out of square for a 4-inch square.
And then just for grins I decide instead of cutting conventional, I'll cut climb.
And it's square.
So wassupwidat? Frame torque? Huh? What? Bit deflaection? Huh? How the heck do I handle THAT? THe spindle's a Bosch Colt, it's extremely securely mounted, so of course, it's probably moving.
Anyone got any Hints? Tips? Donations?