increased barrel length vs speed, linear graph?

[subscriber]

My concern is about the asymmetry, causing a general downward "crosswind", pushing the pellet off axis.

I am willing to do another design that has two sets of spirals to address that asymmetry, but need to know a few basic specs before I invest another 4+ hours in a new design. 

Matthias, what are your requirements for:
Core OD
Core Length
Offset of pellet axis from the center-line of the core?

[subscriber]

I had ideas about how to address the asymmetrical airflow for moderator that has an offset pellet channel, and just had to capture them

This mono-core is for 3D printing, although a simple variant could be devised for CNC machining.

Edited;
Sorry Gentlemen.. although the rules have changed allowing us to use terms like 'silencer', we are not permitted to show how to make them. Please read and adhere to the rules of the forum.

[Rallyshark]

That design looks like it would be pretty awesome! 

[subscriber]

That design looks like it would be pretty awesome!

Well Donny, I did it, based on what Matthias said he wanted to achieve.  Now, he seems shy about claiming or rejecting it .   

Total time spent for both designs was over 8 hours.  I only wish someone would try it out.  Else all that effort is wasted...

[Rallyshark]

I don't think you'll have any problem finding someone to try it out.  There are TONS of PP700 pistols on here, the thread I started way back when I got mine is up to ninety something pages now,lol.  Matthias may just be off the forum right now, or hasn't seen it yet?  Give him time, I'm sure he'll catch up.  If all else fails, I'd be happy to try it   I can even see how it works at much higher power levels too, haha. 

[JungleShooter]

🔶 Peter / subscriber!

I am floored!! 
I can't believe you did this awesome design, und just like that!
VERY, VERY COOL!!  😊 

You are very talented — I can't begin to think about designing anything like that. Sweet! 

This very much looks like this could do an amazing job a lowering the sound of a shot.


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🔶 As far as my silence, just like Rallyshark thought:  I was off the forums for a couple of days — I had a birthday party to attend — with preparations and clean-up....! 🤣   
So, thank you for your birthday present, Peter!! How cool is that?!! 😄



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🔶 About trying out the design — I'd love to!

However, as I said in Post #23, this requires funds....
Because of where I have chosen to live and do what I do, I have a very tight budget, and never will own a double-digit amount of guns....
And I'm fine with that.

However, buying a second PP700 to cut the barrel and airtube and make a one-off mega-silencer with your awesome design is not in my immediate future, as far as I can see.

➔ But my mind keeps thinking and planning, so that when I do have the funds, I can make it a reality.

Your initial posts about this — and now your design!! — just made me realize, that what I was pretty much a pipe dream in my mind can actually become reality!
Because of your baffle core designed for the "pipe" we call silencer/ moderator!!  😄



I do keep copious notes of the advice, information, lists, photos, diagrams, all that wonderful stuff I find on the forums — so this stuff including your design doesn't get lost on me! It's all filed away, with titles and tables on contents....! 😄 



🔶 Wow, what an awesome community to be part of!

Thank you again, Peter, for doing this. 😊


As it's past midnight I'll check on the measurements on Monday. ✔️

Matthias