I started a message in the Machining Forum that should have been in there. My parts are not as shiny as most of the gun parts in this forum but I can always polish the some day....
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Posted 08 January 2011 - 10:12 PM
Just got finished milling the flats on the bolt housings and had them in the carrer block sitting on the mill table, turned around, knocked them off with my elbow and they landed on bolt housing No.1 and WHAM! knocked a big flat spot on it. Well, I made another one and a spare. Next up is soldering or welding in the recoil pins. I dread that part. No experence with that! Wish me luck!
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Posted 23 January 2011 - 05:01 AM
Question 1 : In the bolt housings pictured below, what is the best way to number them to match the carrer block holes : Just whack them with a number stencle? I don't what to warp them!
Question 2 : I have soldered the recoil pins in to the bolt housing. What do you think about sandblasting them to bet the black off?
Question 3 : RG-G drawings call for a No. 6-32 set screw to hold in the recoil pins! Is the set screw still needed?
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Posted 23 January 2011 - 07:42 PM
Posted 30 January 2011 - 05:01 PM
This week ends work! Didn't have much time to do anything on my Gat. I have been dreading cutting the extractors for a long time (their so small) but they went easy! I took a piece of 1x2x4 steel bar, cut a shallow step in the face (2x4 surface) to lay the 1/8 square stock on, cut about .040 off the width, set it on parallels in the vise, put 16 - 1/8"pieces if stock on it and tapped them down in Z and squared them up in X and cut the 3/8 wide step on one end. Turned them around and cut the other end. Peice-O-Cake. I didn't have a 11 degree taper mill so I used what I had and I didn't cut the chamfers on the bottom. I'll probably just hit them on the grinder if it becomes necessary later.
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Posted 30 January 2011 - 09:02 PM
Posted 13 February 2011 - 01:22 AM
Todays Progress: I started milling the extractor slots in the bolts. For anyone else I recommend rotating the recoil pin around as far as possible and still keep the fireing pin slots closed and I used a No. 51 aircraft drill form mscdirect.com to drill it out. I made a little block out of some junk to hold the bolts level in the vise for milling.
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Posted 15 February 2011 - 03:54 PM
Posted 17 February 2011 - 12:12 AM
Posted 17 February 2011 - 05:33 PM
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