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"I don't collect guns anymore, I stockpile weapons for ****ing war." Chuck P.
"Some days you eat the bacon, and other days the bacon eats you." SeriousStudent
"Don't complain when after killing scores of women and children in a mall, a group of well armed men who train to shoot people like you in the face show up to say hello." WillBrink
"I don't collect guns anymore, I stockpile weapons for ****ing war." Chuck P.
"Some days you eat the bacon, and other days the bacon eats you." SeriousStudent
"Don't complain when after killing scores of women and children in a mall, a group of well armed men who train to shoot people like you in the face show up to say hello." WillBrink
That appears to be an object made of some sort of polymer. I would say that it's a polymer lower, but that no longer resembles a lower receiver.
To educate a man in mind and not in morals is to educate a menace to society. --Theodore Roosevelt--
Cutting plastic isn't quite as straightforward as it may seem.
Looks to me like a dull cutter, and too much speed.
The plastic heats up at the cut, melts itself onto the cutter, and the "blob" end then just sort of pressure removes material.
As you can see, it's not pretty, and certainly not accurate.
Probably used a drill press, and one of those little handcrank vises. They have wobble, so does the spindle, plus plastic receiver, and the whole thing "shakes rattles and rolls" when the cutter grabs into it, and takes on a life of its own. There is definitely an endmill mark along the top edge. End Mills and drill presses don't play well together. You can push the tool down into the part, but have almost no control of it pulling itself in.
To cut plastic you need a sharp cutter. Really sharp, like brand new, or just sharpened. If you want speed also, you need flood coolant flow, not just mist, or squirting something on it. You can do it dry, up to a point, with an air nozzle on it constantly to keep the chips from building up.
Carbide tools need not apply, as they aren't sharp enough.
Bet it scared the bejesus out of whoever did it, there for a few moments.
Eta, because the more I look at the pic, the more I see.
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Last edited by Gunfixr; 09-12-15 at 23:57.
NRA Life, SASS#40701, Glock Advanced Armorer
Gunsmith for Unique Armament Creations LLC, 07/SOT
VIGILIA PRETIUM LIBERTATIS
The tool grabbed the material and bounced around in there. It's not a polymer lower. Note the shiny metal where a clean cut was made forward of what's left of the trigger pocket
INSIDE PLAN OF BOX
- ROAD-RUNNER LIFTS GLASS OF WATER- PULLING UP MATCH
- MATCH SCRATCHES ON MATCH-BOX
- MATCH LIGHTS FUSE TO TNT
- BOOM!
- HA-HA!!
-WILE E. COYOTE, AUTHOR OF "EVERYTHING I NEEDED TO KNOW IN LIFE, I LEARNED FROM GOLDBERG & MURPHY"
I am American
At first, I thought that as well. Now, I think its flash reflection off a smooth pocket.
The reason I think this is the clear end mill mark along the top edge. It's not deep, or particularly wallowed. If that were metal, it would still be shiny.
Down in the pocket, no, it would be dark from being ground out by the same metal it was made from. But that top spot would be bright metal.
Also, there are a few burrs, string like burrs. Looks to be some in the left end of the pocket, and a good one in the hole in the bottom where the trigger goes through. I blew it up, there's air bubble spots in the left end as well. Metal does not do that.
Well, not with anything you'd likely have at home.
While aluminum will string, it looks different, and is bright.
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Last edited by Gunfixr; 09-13-15 at 01:07.
NRA Life, SASS#40701, Glock Advanced Armorer
Gunsmith for Unique Armament Creations LLC, 07/SOT
VIGILIA PRETIUM LIBERTATIS
It appears someone or something took a Lightsaber to that lower . . .
"In a nut shell, if it ever goes to Civil War, I'm afraid I'll be in the middle 70%, shooting at both sides" — 26 Inf
"We have to stop demonizing people and realize the biggest terror threat in this country is white men, most of them radicalized to the right, and we have to start doing something about them." — CNN's Don Lemon 10/30/18
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