chale4incolo
Plastic
- Joined
- Jan 26, 2014
- Location
- Colorado USA
Ok surface grinder gurus, another real basic question here, please. So I’m doing some work where I need to “zero” the front edge (the edge that’s ‘toward me‘) of a diamond wheel (and also a thin delicate diamond dicing blade) with respect to the back edge of the workpiece (in this case the back edge of a fused silica optic that I don’t much want to touch with the wheel if I can avoid it). I.e., I want to know that the front edge of the wheel is closely coincident with the back edge of the workpiece in the Y axis, so that I can then translate the workpiece in Y by a known precise amount, etc. How do guys do this to within no more than a few thousandths of an inch? So far I’m doing it “visually”, i.e. I’m looking down the X axis with the edge of the wheel down close to touching the workpiece, and tweaking the table in Y until the wheel front edge looks very close to the back edge of the piece. It seems I can do this consistently to within about 0.005”, not bad (my myopia helps!), but what if I needed to do it to within a thou? What’s the equivalent of like an “edge finder” on a mill, for a surface grinder?? I’m guess I’m really not sure. Thx—Charley