Making a one piece bolt
Posted 12 August 2012 - 08:17 AM
I'm at the moment planning on making the bolts as one piece, first turning them on the lathe and then doing the cutout portion with a CNC mill (no 4th axis) and also contouring the round shape for the guide pin that goes in to the box cam.
Just wondering about the small radius that will be at the end of the cutout section - should I make the cutout portion that much longer or modify the carrier to have the bigger holes a little bit deeper so that the radius will not contact the carrier?
Also, what would you suggest for making the firing hammer hole in the bolt flat bottomed? I do have long end mills tha I could use to flat it out on the CNC, but I'm sure there are some easier method. Boring in the lathe is kind of awkward because of the hole size.
The firing pins will be mold ejector pins, put drilling a 1.6 mm hole about 45 mm deep doesn't sound great. I think it needs to be reamed so that the hole is straight and round so that the ejector pin fits, or could I just use a bigger drill, like 1.7 mm?
I know Cutter here makes these bolts and I sure like the looks, but would prefer making all the parts myself
Posted 07 November 2012 - 12:51 AM
After turning the .417 diameter and sawing the double ended pieces into they
go to the cnc mill. Mounted in a fixture on the 4th axis using 15 tools.
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Posted 07 November 2012 - 10:45 PM
Nice work on those bolts !! I was wondering how you got into the tight corners etc.
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