choppernigel
Plastic
- Joined
- Feb 15, 2005
- Location
- london UK
So I have a fantastic condition Schaublin 13 mill which is good to within 2 tenths on all axes and the spindle has no measurable run-out but my machine vices just don't seem capable of holding work so that I can machine faces square to each other. The vices in question are a 4" Abwood a 3"precision toolmakers and a very chunky 6" import jobee (if I could see how to post pictures I would) anyhow if I put a dial gauge on the fixed back jaw of any of them when I tighten the work in the vice I see the top edge of the fixed jaw flex back by around a thou or more so naturally that means the workpiece pretty much rotates out of square as it follows the fixed jaw flexing away. I am using a piece of welding rod between the movable jaw and the work and the work is on parallels but despite knocking down with a soft hammer this means that the parallel nearest the movable jaw is as loose as the proverbial dong in a bowler hat. I would point out that I am not being stupid and tightening these vices with a yard long lever I just use the supplied handle reasonably. HELP