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A number of changes were made to the Sudanese AR-10 lower receiver. Selector stops were added and a new profiling program was used to allow for a better finish around a few areas of the receiver. Then a second lower was machined out of 6061 to verify the changes. During the process of machining a […] With op 1 completed it is now time to work on op 2 and 3. First a fixture needed to be machined to hold the machined receiver to all finishing the other side. The machined op1 piece was set in the fixture and tighten down All the holes were drilled in op1 so now the […] Now that I am back into the shop it is time to get back to projects that was started years ago. The first project on the list was the Sudanese lower receiver. It had been drawn up in a solid model years back when the modeling program that was used in the shop was Solis […] The first 5 rifles have been made and tested, then re-tested, then again photographed and re-tested and finally photographed in slow motion and re-tested. I number of interesting issues were found and collected, not serious but still interesting. We have one more test to do to verify that everything is good to go. These are […] After seeing what Orin, a friend of gun lab, was able to accomplish with his printer I decided to take the plunge and obtain one for myself. I had previously look at this same model of printer a couple of years ago, however at 2500.00 it was out of my price range. At a cost […] Not that we have finished running the parts on the machining centers it is time to do the final fit up. Using the 1018 trunions that we made a hole was drilled in it to allow alignment with the button pressed into the receiver. Then the blocks were tested to see if the fit up […] With these last three operations we will have completed the work on the cnc machining center.
You can see the process of rough machining the bottom of the curve for the trunion. This op also machined the complete magazine well out. A good side view of the rough machining of the curve. All the […] It has been a while for a MP-44 trunion update. The next couple of posts will get us back up to date with the trunion project. The new op 5 was to cut a slot and rough magazine opening to allow coolant flow and chip removal and still allow us to high speed machine. Well […] With this post I am going over a few of the problems that have occurred during the machining of op5 on the 4140 hardened trunions. We ran into a snag while doing this op. A problem that did not occur on the 1018 steel parts. A quick video discussing the problem and solution. The […] We have started on Pete’s, a friend of gun lab, new 4140 MP-44 trunions. This series of videos and posts is the process we used to make them. First the video. Here are the pictures going over the changes and the steps we took. We needed to change the depth of cut for […] |
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