I'm building a fixed gantry, moving table CNC router for joinery and inlay. I'm looking for advice on stepper sizing. The heaviest cuts I plan on making would be with the router in horizontal position, cutting pins for through dovetails with a 1/2" spiral bit in 5/8" hardwood, with the cut 5/8" deep. X axis (on fixed gantry) is ball screw drive, 4 start 20 MM dia, 20 mil/ revolution travel. I"ll use 1/2 acme with Dumstercnc nuts for z and moving table-whichever start/thread combo you all recommend. Which of the many available 3 axis stepper kits would people with experience or knowledge about this recommend? I'll be working in multiples on the joinery work, 200 or so pieces at a batch, but only running the machine a few (10 maybe?)hours a week. Would like to cut at speeds of maybe 100 inches/minute or so. Thanks! Al Ladd . See my work at www.alladd.com