I have finally gotten to the point of grinding the angles on the rails. Took me much longer (and more trips to Lowes and Ace) than I was expecting to get the skate assembled.

Welding nuts for the height adjustment bolts worked great, but I was having trouble spacing the grinder to set the grinding wheel at a good location to engage as much of the bearings as possible without bottoming out on the angle iron's fillet. Finally got it right and zing! bevels a-plenty.

Some things that were definitely helpful:
1. Clean off all the mill-scale. The bearings dont bind up then.
2. A little oil for the height bolt to slide on made movement smoother.
3. Clean up the 45 degree corners with a file so the v-wheel rolls smoothly.

Well, I've made some progress on the table, but I right now I need to back off on the MM and concentrate on some other things. I am going to put my four OM PK296B2A-SG7.2 and four Gecko 203v's on ebay if no one here is interested.

whats the difference between the a2a and the b2a, Just the rear shaft?

Yes

Motors
 

Travis,
I sent you a pm w/regaurds to the steppers and geckos.