12-20-2014, 12:06 AM
(12-19-2014, 11:52 PM)PixMan Wrote:(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.
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Ken
I don't know just what he has to work with, they have a pretty good selection of tools there at the school where he teaches. I'm not going to get in a hurry with a file, one thing I made myself promise me was that I would not get in a hurry with this and screw it up. So far I've helt to that promise except for one little mix up on the stock where we cutout a butt stock that wouldn't work because it was too short and too narrow to fit the butt plate.
So the little pins that are sticking up will get trimmed, just not sure when. Probably one day when I wake up and say todays the day the pins get trimmed and the shop monsters not raising cain, and the tickers not bothering me.
What I'll probably do is put it in a vise with the leaf set just low enough that the file won't touch it. and file them down, take all of ten minutes.
DA
dallen, proud to be a member of MetalworkingFun Forum since Apr 2012.
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