12-19-2014, 11:52 PM
(12-19-2014, 08:23 PM)dallen Wrote: [quote pid='39089' dateline='1419038217']
in that case they may get filed down with some tape on the leaf to stop the file from marring the surface. He should know what he's doing he's been building classic guns for a long time and been a machinist for a long time, but then there's always that one time when things got butt up and stuff crashes. just thinking about it, it can't be done on the surface grinder using a Mag Chuck cause of the two bearings sticking out the side that would be on the chuck.
David
Does your friend have a good pair (or large single) magnetic transfer parallel? It could be done that way with the bearing points hanging over the edge, similar to how I did the orginal form grind of the .310 radial feature that is bigger than the .152 (or so) width.
An open, hard grade free-cutting and friable structure wheel of about 46 grit would be the key.