Good news this time.
So there is good news… I did use this as a chance to buy a new tool but what I bought was a 48″ level with milled sides. Guaranteed to be flat to .0005″ (right, pull the other one, it’s got bells on.)
In any case it’s bound to be straighter than my extruded aluminum circular saw guide.
The new level indicates that my torsion table is pretty darned flat!
This makes me happy and now I can continue with the build.
In more good news I took apart the Shapeoko 3 base, popped out the pressed in nuts, drilled out the holes to 5/16″ and checked the T-Nut positioning…
They are just about dead-on in all three positions. I’ll probably open up the holes in the end pieces another 1/32″ just to give me a little more wiggle room for alignment, but I’m feeling pretty good about this project now. 🙂