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Thread: Question for you mechanical engineer types...

  1. #1
    Senior Member Zoff12's Avatar

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    Question for you mechanical engineer types...

    Anybody know what the thread pitch and lead are on a standard plastic drink bottle cap?
    Skäl
    "Where you recognize evil, speak out against it, and give no truces to your enemies." - 'Havamal'.

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    Team GunsNet Gold 07/2012 / Super Moderator Gunreference1's Avatar

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    After today, it's all historical.

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    Team GunsNet Bronze 07/2011 a-kmanator's Avatar

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    Hillbilly suppressor?

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    Senior Member NAPOTS's Avatar

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    is there a Unified Mega Coarse?

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    Senior Member Zoff12's Avatar

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    Quote Originally Posted by Gunreference1 View Post
    It might! Thanks Steve. I will turn this over to my machinist buddy and see if it is what he needs.

    Quote Originally Posted by a-kmanator View Post
    Hillbilly suppressor?
    LOL Nope! It is actually for making an aluminum or plastic piece that you screw onto the bottle to make it a float for turtle fishing, trotlines, etc.
    Skäl
    "Where you recognize evil, speak out against it, and give no truces to your enemies." - 'Havamal'.

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    Administrator Krupski's Avatar

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    Quote Originally Posted by NAPOTS View Post
    is there a Unified Mega Coarse?
    Gentlemen may prefer Blondes, but Real Men prefer Redheads!

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    Administrator Krupski's Avatar

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    Quote Originally Posted by a-kmanator View Post
    Hillbilly suppressor?
    2 liter soda bottle doesn't work as a suppressor. The plastic shatters from the concussion. (or so I've heard)...
    Gentlemen may prefer Blondes, but Real Men prefer Redheads!

  8. #8
    Team Gunsnet SILVER 05/2012 deth502's Avatar

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    the thread pitch is prob nothing special, the hard part, imo, is going to be the thread form.

  9. #9
    Senior Member Kadmos's Avatar

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    Quote Originally Posted by Zoff12 View Post
    It might! Thanks Steve. I will turn this over to my machinist buddy and see if it is what he needs.

    LOL Nope! It is actually for making an aluminum or plastic piece that you screw onto the bottle to make it a float for turtle fishing, trotlines, etc.
    Dowel and screw through the side then eyehook in end, and presto. Or cork and eyehook

  10. #10
    Team GunsNet Bronze 07/2011 a-kmanator's Avatar

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    Quote Originally Posted by Krupski View Post
    2 liter soda bottle doesn't work as a suppressor. The plastic shatters from the concussion.
    If you say so...

  11. #11
    Guns Network Contributor 04/2013 El Laton Caliente's Avatar

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    Quote Originally Posted by a-kmanator View Post
    If you say so...
    He forgot to punch a hole in the bottom... or did it at over 3000 fps....

  12. #12
    Senior Member Zoff12's Avatar

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    Quote Originally Posted by Kadmos View Post
    Dowel and screw through the side then eyehook in end, and presto. Or cork and eyehook
    That's what I've been doing. We just wanted to take on a pointless project for fun.
    Skäl
    "Where you recognize evil, speak out against it, and give no truces to your enemies." - 'Havamal'.

  13. #13
    Administrator Krupski's Avatar

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    Quote Originally Posted by El Laton Caliente View Post
    He forgot to punch a hole in the bottom... or did it at over 3000 fps....
    Yes. The person who's name I fail to remember duct taped a 2L bottle onto the end of an SAR-1 muzzle and figured the bullet would just exit the bottom of the bottle (no need for alignment then). When this anonymous person who's name I fail to recall pulled the trigger, the 2L bottle disappeared and we thought it got blown off and forward. But then we found little sharp shards of green plastic all over (including some stuck in our shirts and hair). The bottle shattered into a million little pieces.

    So, the anonymous person who's name I fail to recall decided not to bother trying that trick again.

    He did, however, have a lot more luck with a long lace from an old ice-skate and a keyring...
    Gentlemen may prefer Blondes, but Real Men prefer Redheads!

  14. #14
    Senior Member BISHOP's Avatar

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    Its been thought of before.




    Ya get 3 shots, then you change it out for a new bottle and start a new.

    OH YA, BTW its not a silencer its a protective cap for cleaning your barrel, so your brush and patches don't spray oil out everywhere

    OH and NO the bottle doesn't shatter from the pressure, but how would I know -- Oh a friend did it once.


    BISHOP
    Last edited by BISHOP; 02-08-2012 at 07:17 PM.

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