Awright then...I received my (early) Father's Day present Grizzly 150 mm. rotab and it looks very nice; better than I expected for the price. http://www.grizzly.com/products/h7527
It looks like it's a good match for the X-3 and mounts up great. Question: I want to mount my 160 mm 4 jaw chuck on it and am at a loss as to how to do that efficiently.
(1) The pics show one way I came up with ie: take the lathe adaptor plate off the chuck and just drill 4 - 8mm holes right through the chuck and bolt it down on the rotab using the t-slots in the table and long 8 mm bolts. 4 square keys bolted to the back of the chuck would prevent it slipping under load. Prolly be a be-otch to get 4 keys precisely machined and mounted so that the chuck drops in without a bunch of slop. I reckon 2 keys would be easier now that I think about it.
(2) Machine the keys deep enough to reach down into the slots and make them expandable with a tapered bolt of some sort so that it could lock down firmly without drilling holes in my chuck.
(3) Any other ideas; what say ye-all?