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Thread: Are MPA's Fullsize and Velocity's Vmac9 upper interchangeable?

  1. #21
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    May 2008
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    It costs $6-8 to print an AR receiver, so most people print dedicated 5.56 and 9mm lowers (of both Glock and Colt varieties) as they need.

  2. #22
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    strobro32's Avatar
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    That is cool looking. Good job.

    As soon as the plastics become equal in strength as glass filled nylon I'll buy a printer.

  3. #23
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    You can buy glass-filled nylon today under names such as Nylon Plus, it's a little more advanced than most people need to do since most designs are based around PLA or PLA+. PLA+ is nearly as strong as glass-filled nylon, until you get above 130-140F, so you can't leave PLA printed guns in a hot car.
    Nylon requires completely dehydrated storage-to-printer filament handling, so you need teflon tubing the entire way from your storage box to the print head, while the PLA spool can be placed on a rack in the open air while in use and stored in a desiccant-containing box with minimal concern.

    My brace finished printing, already have a few areas to improve for the next print (shortening to a 1" or 3/4" strap, a few filets, etc), but it's usable and turned out well. The lock-up is solid.


  4. #24
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    Looking forward to the videos.

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