K Baffle Design (by 16 year old)
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- Silent But Deadly
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Last edited by paco ramirez on Thu Mar 20, 2008 6:57 pm, edited 1 time in total.
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If your talking about the pics that are all gray and black, I am going to add one more mouse hole which will be smaller, and take out the four little holes in the face of the baffle. I also changed the omega baffles, so they will work better.Paledaddy wrote:Pac, shouldent the mousehole be on the other side so it direct gases to the coax chamber bath at the far end of the baffel !!
Pd
hmm dont know if we talk about the same one.. i meen the the cut in the entrance hole in the bullet path of the baffel. I know when i worked on my .223 design i put it one the wrong side as you have.
you want to re direct as much as possible to the coax chamber.
Pd
you want to re direct as much as possible to the coax chamber.
Pd
[b]Bas Rutten[/b] [quote]" I'm sorry Sir..... BANG ! BANG ! BANG !... No I'm not. "[/quote]
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I was practicing reverse engineering my PMAG, so I could add it to my Solidworks AR15 model. I'm hoping to make a replica of the AR15 I'm building, in Solidworks. Thats also why I CADed a Tango Down VFG look-alike visually (I don't have one yet). I'm not exactly sure what the curve in the mag is supposed to be, so I'm using a 20" circle perpendicular to the lower part of the straight section in front. I messed up on a few things, but I'm not too worried about it. It's just visual, and I can change it later.
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I do believe you can build- you cannot transfer from a licensed dealer under 21.paco ramirez wrote:First off, tmix, since I live in California, and am also under age to own
or build any part of a sound suppressor, I wouldn't know if it works
yet because it's illegal to own a sound suppressor in California (unless you
are law enforcement) and nobody under 21 is allowed to build or own a
sound suppressor anywhere in the United States.
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Closed Casket wrote:I thought it was illegal to think about silencers in California.
As long as you're wearing women's clothes and feeling sympathetic towards killers and rapists, then you're okay.
A simple fact, in California prisons are not being built to house dangerous criminals because the lawmakers require prisons to be built with outrageous building specs....A five star hotel in San Francisco (or any other major city) would not be up to code. Prisoners are being released into cities in mass quantities. There's one city (which I will not name) where a motel is housing parolees two to a room. The motel has about 40 rooms.
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- killerofall
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killerofall wrote:i like this but wouldnt less mouse holes work best to slow the rate of the gasses?
Less would most likely slow the rate, but these holes are a bit smaller than a normal mouse hole would be. It also doesn't use slanted sidewalls, so I'm interested in how it will work using three sideways cuts in the center baffle face wall. It was the DeGroat 9mm can that used the 3 center cuts in the baffle face of the cone baffle. I believe adding 3-4 small holes to the face of the baffle will create a better environment for the triple cone holes to work properly. I guess we'll find out soon enough how well it will work
The DeGroat baffle:
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I'm new to this forum, and this thread really caught my eye. I'm about half way through this thread, and DAMN, I'm impressed! As an Engineer, I really like what I see. As for your AR with bolt handle, check out the DaeWoo AR100. It's basically an AR15 lower and bolt carrier with and AK gas system. Very reliable and accurate. I picked up mine in '86 (long before Paco was born). Now, If I could only get the select fire trigger group and lower for it. I'm looking at making an F1 can for it.
I am a Process Engineer over an automated CNC line (about $60MM worth of equipment) with access to a state of the art 9 axis CNC turning center. This machine is a hybrid between an lathe and a mill with 1 micron accuracy. Most of the renderings I have seen on here can be made in the system I have access to. If made from aluminum, a K baffle would be produced in about 1 minute. Machine time runs $100/hr. Producing from tool steel would take about 2 minutes/piece.
One last comment about your designs. I see that all your designs thread onto the end of the barrel which is good for a QD or add-on suppressor. I'm looking at something with a primary expansion chamber over the first 5" or so of the bbl like a reflex. I will remove the flash suppressort from my AR and replace with a can that will stay on the weapon 100% of the time (except for cleaning). I'll install and alignment bushing/locking ratchet on the bbl about 1/2" in front of the gas block.
I am a Process Engineer over an automated CNC line (about $60MM worth of equipment) with access to a state of the art 9 axis CNC turning center. This machine is a hybrid between an lathe and a mill with 1 micron accuracy. Most of the renderings I have seen on here can be made in the system I have access to. If made from aluminum, a K baffle would be produced in about 1 minute. Machine time runs $100/hr. Producing from tool steel would take about 2 minutes/piece.
One last comment about your designs. I see that all your designs thread onto the end of the barrel which is good for a QD or add-on suppressor. I'm looking at something with a primary expansion chamber over the first 5" or so of the bbl like a reflex. I will remove the flash suppressort from my AR and replace with a can that will stay on the weapon 100% of the time (except for cleaning). I'll install and alignment bushing/locking ratchet on the bbl about 1/2" in front of the gas block.
where are you located? too bad if we do a f1 can we have to be present or i am sure people would be pouring in and have a can in 15mins + cam time. got some pics of that bad boy?tnrcboatracer wrote: I am a Process Engineer over an automated CNC line (about $60MM worth of equipment) with access to a state of the art 9 axis CNC turning center. This machine is a hybrid between an lathe and a mill with 1 micron accuracy. Most of the renderings I have seen on here can be made in the system I have access to. If made from aluminum, a K baffle would be produced in about 1 minute. Machine time runs $100/hr. Producing from tool steel would take about 2 minutes/piece.
just out of curiosity, how do you keep the tolerances that tight when the heat from the machined item will change it more than that. i have friends that have conventional cnc equipment and usually the machine is capable of extreme tolerances, but when actually machining, obviously w/ coolant/lubricant as this is an industrial application, they claim a higher tolerance due to the heat of the process. or is the accuracy where it would start and stop an operation?
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+1 pics or it didn't happenbob332 wrote:where are you located? too bad if we do a f1 can we have to be present or i am sure people would be pouring in and have a can in 15mins + cam time. got some pics of that bad boy?tnrcboatracer wrote: I am a Process Engineer over an automated CNC line (about $60MM worth of equipment) with access to a state of the art 9 axis CNC turning center. This machine is a hybrid between an lathe and a mill with 1 micron accuracy. Most of the renderings I have seen on here can be made in the system I have access to. If made from aluminum, a K baffle would be produced in about 1 minute. Machine time runs $100/hr. Producing from tool steel would take about 2 minutes/piece.
just out of curiosity, how do you keep the tolerances that tight when the heat from the machined item will change it more than that. i have friends that have conventional cnc equipment and usually the machine is capable of extreme tolerances, but when actually machining, obviously w/ coolant/lubricant as this is an industrial application, they claim a higher tolerance due to the heat of the process. or is the accuracy where it would start and stop an operation?
Some more modern techniques can probably give you extreme accuracy like that from doing multiple cuts and using coolants to control expansion, but I'm just guessing.
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I'm in TN. THe line I work on is product specific, and makes automobile engine components.
The 9 axis machine I referred to is a MAZAK Integrex 100-IV ST. It's a $500K machining center (without tooling). You can google it, or look it up at MAZAKUSA.com.
I have several processes on my 7 year old line that a total tolerance window of 16 microns (machining high silicon aluminum). In order to get this level of accuracy, we often gage the part while machining it. We have touch probes that go to a known reference point, and adjust the work offsets based on the sensor feedback. This compensates for the heating of the ball screws in the axis. We also flood cool every thing. The parts are the same temp as the coolant.
We also have several central coolant systems (43,000 gals on my line). The total coolant systems in out plant are about 150,000 gals. We use air gages to measure the critical dimensions.
Some of our critical steel parts are ground to within 3 microns, and then micro polished to within 0.5 microns.
It's amazing what you can do with a few hundred million $$$ in capital.
The 9 axis machine I referred to is a MAZAK Integrex 100-IV ST. It's a $500K machining center (without tooling). You can google it, or look it up at MAZAKUSA.com.
I have several processes on my 7 year old line that a total tolerance window of 16 microns (machining high silicon aluminum). In order to get this level of accuracy, we often gage the part while machining it. We have touch probes that go to a known reference point, and adjust the work offsets based on the sensor feedback. This compensates for the heating of the ball screws in the axis. We also flood cool every thing. The parts are the same temp as the coolant.
We also have several central coolant systems (43,000 gals on my line). The total coolant systems in out plant are about 150,000 gals. We use air gages to measure the critical dimensions.
Some of our critical steel parts are ground to within 3 microns, and then micro polished to within 0.5 microns.
It's amazing what you can do with a few hundred million $$$ in capital.
What are the legalities around this?bob332 wrote: too bad if we do a f1 can we have to be present or i am sure people would be pouring in and have a can in 15mins + cam time. got some pics of that bad boy?
Have the part made - all but the hole in the middle (kind of like the 80% receivers we used to be able to buy). It's kind of hard to get a normal bullet to pass through metal. If you have access to a lathe, you could then chuck up the almost complete beffle and bore the hole - finishing the part, making it what it is supposed to be, with your F1 in your hand. All of the tricky detail work is done on a CNC machine.
Thoughts??????
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Sounds like you are buying raw material, so I think that there would be no issbue. The part is completely un-functional until the bullet bore is completed. It would be like buying a casting. There is the off axis hole, though that also needs to be made. As long as it is smaller than the bullet, I would think it wopuld be OK, but I'm not a lawyer.