Originally Posted by Welderboy250
Exactly. Even if I had indexed it in on the mill and used a boring bar or some such cutter it would still need bedded to be perfect.
I don't get the correlation. Keep in mind I own a short run machine shop so terms like 'indexed it on the mill or boring bar is completely wrong and not at all doable in the first place and as an aside I see lots of that uninformed stuff on this site. Makes me cringe.
The rail must be set up for remachining with a sine bar and fixtured to the table using the bar to extrapolate the required angle. It has to be form milled or ground with a wheel cut to the radius you wish to obtain that matches the receiver or ball milled with an appropriate ball mill. Thats how it's done. Boring bars are for internal boring of holes, not radius machining.
Glad it worked out, Like Sully, I would have returned it and not cabbaged it up. It's a dead issue now. If I was the manufacturer and you returned anything to me that you 'modified', I'd tell you to stuff it.
Be careful with that mill, you are headed for a tooling crash and possibly personal injury.