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Have you not seen Boris's thread on arf.com? http://www.ar15.com/forums/t_3_4/67...IY_100s_of_ARs_cheaper__faster__gentler_.html
It is almost as classic as his shovel AK thread
If you think that plastic receivers are waste of time consider that worm hearts organizing gun buy backs pay $50-$200 for any firearm. Since we got a fully bonified receiver (regulated by ATF and everything) you could be making a grand / hour easy. Starving artists will starve no more!
Check youtube for the torture tests. Those things are garbage. It's been posted here before.
My big concern would be the air bubbles. From the vids I've watched it seems like you spend a lot of time trying to get them all out. But still end up with a shitload in the receiver. I can see reinforcing helping. Personally if I was going to make some I would want to build a cabinet first and pull a vacuum on them. I do see the benefits like the coloring, price point, etc... I was excited when I first heard about them but was really put off by one of the vids I watched. I believe it was from demo ranch.
2. They come in many colors, shades and could be customized ... yes, it's childish, but this exactly what AR market demands.
If not vacuum, a shaker table could do the trick too. i.e. stick an orbital sander to the side for a couple seconds...My big concern would be the air bubbles. From the vids I've watched it seems like you spend a lot of time trying to get them all out. But still end up with a shitload in the receiver. I can see reinforcing helping. Personally if I was going to make some I would want to build a cabinet first and pull a vacuum on them. I do see the benefits like the coloring, price point, etc... I was excited when I first heard about them but was really put off by one of the vids I watched. I believe it was from demo ranch.
Check youtube for the torture tests. Those things are garbage. It's been posted here before.
I think I'd rather 3d print one.
there are way too many products with many subtle differences. Many two part urethane plastics are similar to water viscosity, not like epoxy. Small bubbles isn't a huge problem, you will have some no matter what. Back reinforcement is what makes the big difference by far.
That would take an awfully good (expensive) printer. I've tried and the overhangs and dimensional creeping from cooling were insurmountable problems. I'm sure a printer in the $10K range could do it though.I think I'd rather 3d print one.
Have you not seen Boris's thread on arf.com? http://www.ar15.com/forums/t_3_4/67...IY_100s_of_ARs_cheaper__faster__gentler_.html
It is almost as classic as his shovel AK thread
Boris, I assume this is your thread?
http://www.ar15.com/forums/t_3_4/67...IY_100s_of_ARs_cheaper__faster__gentler_.html
If not vacuum, a shaker table could do the trick too. i.e. stick an orbital sander to the side for a couple seconds...
Looks like someone skipped a few posts in this thread.
Don't forget it is illegal to manufacture a firearm that cannot be detected using x ray equipment. That metal reinforcement makes the plastic lower compliant.There must be some nifty stuff you can mix in with the pourable plastic like short, tiny fiberglass fibers or carbon fibers. And I really like Boris' technique of embedding metal parts in the cast where you need high strength, like some of the holes.
Yeah, probably.And doesn't make it any more difficult to pour in a few minutes.
Don't forget it is illegal to manufacture a firearm that cannot be detected using x ray equipment. That metal reinforcement makes the plastic lower compliant.
Undetectable Firearms Act of 1988 (18 U.S.C. § 922)