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We have finished operation 6 on the MP-44 trunnions. The reason that we started with 6 samples was to insure that we would have correct samples when we finished. Two of the trunnions ended up out of spec after we finished this operation. The drawings and cam programing were changed to correct and problems. These […] We have just completed the first operation 6 on the trunnion. It has also pointed out a few minor differences. When we started this project all we had was an original trunnion in very bad condition and a collection of out of spec drawings with incorrect dimensions. Later a trunnion in very good […] The next machining operation has been completed on the trunnion. This is one of the many unexpected problems with reverse engineering a component. The magazine did not fit. An error occurred that was missed. It is a good thing to check after every step which we do. You can see the differences here and it […] Here at Gun Lab we do a fair amount of reverse engineering, most of what we like to make have no drawings. However when there are drawings or solid models available we will use them. With this said I have found that most of what is available on the internet or in books is just […] In a previous post comments Alex asked about the spring that the bolt hold open device uses. He wanted to know if we were going to make them. The answer is yes and here are a few pictures of them. The spring on the right is an original while the one on the left is […] We have finally finished machining the last part for the AR-180B safety. This is the master cam video showing the steps that were performed to complete this task. With this last installment we have now completed machining the safety for the AR-180B. This picture shows all the steps that we took to make the […] Saturday I spent most of the day finishing up the second op on the selector lever. Here is a run down of that operation. Starting with the finished op one part. A special set of aluminum jaws were machined to hold the selector levers. With the jaws finished and the parts installed this is […] We were down to see our friend Rick at http://ar180s.com/ a while back and over the last few weeks during conversation he was interested in if we could make a few AR-180B parts. Why not that’s what we do. So while we are waiting for ATFE approval on the VG1-5 and the machines are kind […] |
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