Tutorial Marine Gun Builder (MGB) Polymer80 Build Video Series

Racer88 said:
Wow. It takes me a couple of hours just do do the RSA channel. But then they look like this...
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It takes me probably at least an hour to work on the rail tabs, too.
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Depends on what I'm trying to accomplish. I can spend 15 minutes and make it pretty. I usually don't mess with the rail tabs especially if it's Duty Accurate. If I do I usually deposit 90-100ksi hard face metal using a pulse GTAW machine and diamond lapping. I've done them using a milling machine and A cordless drill and grinder. And various methods in between.
 
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Hvymax said:
Depends on what I'm trying to accomplish. I can spend 15 minutes and make it pretty. I usually don't mess with the rail tabs especially if it's Duty Accurate. If I do I usually deposit 90-100ksi hard face metal using a pulse GTAW machine and diamond lapping. I've done them using a milling machine and A cordless drill and grinder. And various methods in between.
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I don't even know what that last part means! LOL!

But yeah... I can't get frame results like I get in 5, 10, 15, or even 180 minutes.
Channel-and-slide-lock-spring.jpg
 
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Of course, I realize that "factory finish" isn't functionally necessary. But my nature is that I can't NOT do it that way. :)
 
Racer88 said:
I don't even know what that last part means! LOL!

But yeah... I can't get frame results like I get in 5, 10, 15, or even 180 minutes.
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I add a layer of hard face metal like they use for excavator teeth to the lugs using a process that minimizes the heat input to the base metal. Then I lap them to fit the slide glass smooth and air tight.
 
Racer88 said:
Of course, I realize that "factory finish" isn't functionally necessary. But my nature is that I can't NOT do it that way. :)
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When I play with the 80% receivers it's pretty much let's see how many ways I can do it. Having a selection of tools available helps. Every now and then I decide to go all out and commit unnatural acts with metal.
 
Hvymax said:
I add a layer of hard face metal like they use for excavator teeth to the lugs using a process that minimizes the heat input to the base metal. Then I lap them to fit the slide glass smooth and air tight.
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Cool. Obviously you have machining knowledge and access to the tools. That goes well beyond the typical P80 builder's repertoire.

But, it would be really cool if you could do a pictorial (in its own thread) of that process and results! Do share! :cool:
 
jayman said:
Did you find the video??? I need that
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What u are seeking was never published. He explains the steps. There are videos for each and every step to complete that build.
At about 24:00 he listed the steps 4 U…”follow the crayons”
6- Channel - I suggest using Corys method
7 - Blemish removal
8- Polish like a pro FTQ everything
Go right down the video line …. Again, follow the crayons
 
Racer88 said:
Cool. Obviously you have machining knowledge and access to the tools. That goes well beyond the typical P80 builder's repertoire.

But, it would be really cool if you could do a pictorial (in its own thread) of that process and results! Do share! :cool:
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I could probably set up a piece of metal and demonstrate the process. It does require one of the more advanced GTAW machines. I'm wishing I would have waited a few years for an Andeli machine with
" Cold Welding" capability. It has a milliseconds pulse that can deposit metal with a few thousandths of an inch penetration barely affecting the base part. I occasionally resurface parts for a few Class3 and SOT2's around here.
 
Hvymax said:
I could probably set up a piece of metal and demonstrate the process. It does require one of the more advanced GTAW machines. I'm wishing I would have waited a few years for an Andeli machine with
" Cold Welding" capability. It has a milliseconds pulse that can deposit metal with a few thousandths of an inch penetration barely affecting the base part. I occasionally resurface parts for a few Class3 and SOT2's around here.
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It would be purely for "academic" reasons. Obviously, none of us would be in a position to actually do it. But I bet a lot of us are "scientifically curious!" :cool:
 
Racer88 said:
It would be purely for "academic" reasons. Obviously, none of us would be in a position to actually do it. But I bet a lot of us are "scientifically curious!" :cool:
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I'll see if I can get some shop time in this week. Getting the house ready for Granddaughters Birthday next weekend. I have a lot of crap laying around the house and yard to deal with.
 
Hvymax said:
I'll see if I can get some shop time in this week. Getting the house ready for Granddaughters Birthday next weekend. I have a lot of crap laying around the house and yard to deal with.
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In any case, thanks for joining the forum and jumping in with both feet! You're going to fit right in!
 

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