And now for something completely different....

Yes, it can be legal to make a silencer. For everything Form-1, from silencer designs that are easily made, to filing forms with the BATF, to 3D modeling. Remember, you must have an approved BATF Form-1 to make a silencer. All NFA laws apply.

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Timbertec
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And now for something completely different....

Post by Timbertec » Fri Mar 17, 2017 6:05 am

Couldn't sleep so decided to break open CAD and see what my brain could do differently...

It's not quite a monocore, not a baffle stack - I'm not sure what I'd call "it". It basically a two piece core design with a stabilization "Spine" to keep the "Baffle faces" in alignment. Gas is dumped from one chamber to the next & from the front of the baffle to the rear of that same baffle for a right angle "jet" across the bore. Would it work? That's for you to decide!

This is just a solid model and only exists in my computers memory... I just wanted to see what the "Experts" would say.

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Last edited by Timbertec on Fri Mar 17, 2017 8:36 am, edited 1 time in total.

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fishman
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Re: And now for something completely different....

Post by fishman » Fri Mar 17, 2017 8:24 am

I can't see the pictures
300 blackout form 1: http://www.silencertalk.com/forum/viewtopic.php?f=10&t=137293

5.56 form 1:
http://www.silencertalk.com/forum/viewtopic.php?f=10&t=141800&p=955647#p955647

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Timbertec
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Re: And now for something completely different....

Post by Timbertec » Fri Mar 17, 2017 8:25 am

fixing now... stupid dropbox

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bakerjw
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Re: And now for something completely different....

Post by bakerjw » Fri Mar 17, 2017 10:11 am

Very good looking design. Hope you investigated patenting it.
July 5th, 2016. The day that we moved from a soft tyranny to a hard tyranny.

alordnapa
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Re: And now for something completely different....

Post by alordnapa » Fri Mar 17, 2017 2:56 pm

Its a very unique design, but what are the advantages over an identical symmetrical, monocore? Do you have some easier method of production to enable this versus a monocore?I am sure the dogs of war here will tell you to make it less symmetrical to dirty up the laminar flow, but I bet it would work just fine.

a_canadian
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Re: And now for something completely different....

Post by a_canadian » Fri Mar 17, 2017 5:40 pm

I don't see that supporting splined fitting getting any easier to reinstall in the long run, quite the opposite most likely. Perhaps if the engagement wasn't a lot of tight little square corners it'd work better with the inevitable fouling and wear... but if sticking with something like this design I'd switch to a wave form engagement, something which is easier to mill as well as easier to push together after cleaning with perhaps less than perfect alignment and surface smoothness.

As for efficiency... I'm not sure that a lot of pressure would be able to go back into the main chambers through those holes along one side and generate much cross-bore flow. Seems more likely to be a very small scale trap for some of the pressure, but that main bore pressure is going to keep it in check against flowing back in. Where's the motivation for creating cross-bore flow? A K baffle or some cone baffle jetting cuts take advantage of their immediate proximity to the main flow in generating a strongly redirected flow element. That doesn't seem to be present in this case.

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Timbertec
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Re: And now for something completely different....

Post by Timbertec » Fri Mar 17, 2017 9:02 pm

a_canadian wrote:I don't see that supporting splined fitting getting any easier to reinstall in the long run, quite the opposite most likely. Perhaps if the engagement wasn't a lot of tight little square corners it'd work better with the inevitable fouling and wear... but if sticking with something like this design I'd switch to a wave form engagement, something which is easier to mill as well as easier to push together after cleaning with perhaps less than perfect alignment and surface smoothness.

As for efficiency... I'm not sure that a lot of pressure would be able to go back into the main chambers through those holes along one side and generate much cross-bore flow. Seems more likely to be a very small scale trap for some of the pressure, but that main bore pressure is going to keep it in check against flowing back in. Where's the motivation for creating cross-bore flow? A K baffle or some cone baffle jetting cuts take advantage of their immediate proximity to the main flow in generating a strongly redirected flow element. That doesn't seem to be present in this case.
Actually the milling should be fairly easy in this design since you'd cut the small chambers on for the underside and then flip the whole thing 180 degrees in the mill to pound the large chambers out (via CNC) of course you'd need to make a jig to hold the part.

For efficiency - who knows - I'm not going to get a chance to build it any time soon due to location. It was just a practice in "Outside the box thinking"

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