20mm re visited

Discussion in 'Piston & Spring' started by Nick G, Sep 29, 2018.

  1. hmangphilly

    hmangphilly The Doctor

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    It Should be quiet .

    You'll be able to hear all your workings working
     
  2. Adam

    Adam Active Member

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    Cool. Will the shroud apply tension to the barrel? Should be a very stiff setup if so; minimising harmonics and all that good stuff. :)
     
  3. Paul_T

    Paul_T Member

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    Nick if its not too much of a personal question... out of interest what sort of storke lenght / transfer port dimensions will you be running?

    Nice work BTW :)

    Also cheers to all that replied to my ramblings. I wont hijack this thread any longer:oops:.

    Paul
     
  4. Nick G

    Nick G Active Member

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    There will be a bush on the end of the barrel with holes to vent and to align it, this is all new so plenty of guesswork going on .
     
  5. Nick G

    Nick G Active Member

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    I am going to set it up so that i can go out to 115 mm stroke max, and add around 20mm extra spring room over the TX, this should give me plenty of wriggle room to experiment, tonight I stretched the TX to 104mm stroke , but to get it in, lost some length on the piston( hence weight) and the extra stroke coil bound the 2.7 mm wire spring i am using, so ended up with no benefit, all good fun, though. Port is 3.6 diameter x 4mm long at the moment
     
    Last edited: Oct 12, 2018
  6. Nick G

    Nick G Active Member

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    Managed to do a bit more this week

    DSCN3526.JPG DSCN3527.JPG DSCN3526.JPG DSCN3527.JPG DSCN3528.JPG
    DSCN3529.JPG
    Trigger block drilled to take a rekord , because I had one , it going to be rotating piston so will need to modify the sear. DSCN3530.JPG DSCN3528.JPG
    So comp tube and cocking lever next on the list, and I have to machine the scope vee's in , when I am fresh and feel like doing it!
     
    RobF, Paul_T, Akita and 4 others like this.
  7. Buffalo

    Buffalo Boingers Forever.

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    I honestly do not think there is any medication to help Nick. Lol
     
  8. Alanok2002

    Alanok2002 Member

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    Any more done on this nick ?
     
  9. Nick G

    Nick G Active Member

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    I have done the cocking lever, but got side tracked , will be doing some more soon
     
    Alanok2002 likes this.

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