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Todays Tinkering - Ultra Bling......

Discussion in 'Technical' started by Halinfax, Jun 6, 2020.

  1. Halinfax

    Halinfax Full time tinkerer and general all round nice guy

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    Gentlemen.... ITS RAINING.....!!!!! however, I still went out this morning for a couple of hours... I got quarry (yay).. and WET (booo)...

    What do we do when we cant go out shooting???.. we... TINKER...

    So deciding to have a play with my Ultra... got into the shed with delrin, carbon and good intention..... fuelled by strong coffee......we tinkered...

    Several hours later and with a mountain of black plastic turnings... here is the result of the session....

    CAVEAT....
    So as NOT to bore the pants of you good folk, I will NOT go into chapter and verse of what and how I did stuff...... However, if there is anything regarding this little project you wish to know about (manufacture, tools, how-to etc).. please mention it on the post and I will do my utmost to try and help.....

    Starting with a bit of carbon tube.... we cracked on.....
    20200605_175621(0).jpg


    Starting to turn the end caps and internals, the images are of the internal 1/2" UNF and barrel location boss....
    20200606_093521.jpg


    Threaded 1/2" UNF, counter-bored 15.55mm, turned diameter 25.02mm now marking out PCD for vent holes,
    20200606_095610.jpg


    Jig made to drill 3mm holes on same PCD.. slightly angled too ....
    20200606_100553.jpg 20200606_101525.jpg


    NO... its NOT the Dark Star Corona Nebula.....its the mounting boss located into the carbon tube..
    20200606_103039.jpg


    Turned and shaped the muzzle cap....
    20200606_105909.jpg


    Getting all the bits ready for assembly.
    20200606_112439.jpg


    Marking out the vent holes on the shroud
    20200606_114830.jpg 20200606_115848.jpg


    ALL the parts now ready for final assembly. (SPECIAL NOTE - The black delrin part on the left of the photo is the locating guide at the breech face of the barrel, it has the slot cut out of it for the magazine lock catch and is held in place by 2 x M4 grub screws... The carbon shroud locates over the stepped diameter to hold it perfectly in line...)
    20200606_120248.jpg


    Parts assembled, bits in place... the finished item
    20200606_120727.jpg



    And finally... the "naked" Ultra.. with all her bling......
    20200606_121106.jpg

    Casual wear (moderator only)
    20200606_121152.jpg

    Formal wear (moderator and barrel shroud)
    20200606_121253.jpg

    Full evening attire (shrouded, vented and moderated)
    20200606_121445.jpg


    Now... what shall I wear???????
    20200606_121730.jpg
    Thank you for looking at this little presentation.

    Stay Safe.
     

    Attached Files:

  2. Rossiwelsh

    Rossiwelsh Busy Member

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    Great work again mate , how’s the one your doing for your r10?
     
    Halinfax likes this.
  3. Halinfax

    Halinfax Full time tinkerer and general all round nice guy

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    Heyup Rossi... all well at the moment... BUT... I need to make a new moderator...as the shroud is twill design... and the mod is plain.... DOH...:facepalm::facepalm::facepalm::facepalm::facepalm::facepalm:

    EDIT - see what I mean????
    20200606_134901.jpg 20200606_134926.jpg

    I have ordered some carbon FROM THE SAME SUPPLIER.. so that it matches correctly.. and it will gimme summat to do later!!!

    Stay safe mate.
     
    Last edited: Jun 6, 2020
    Rossiwelsh likes this.
  4. TrickyDicky

    TrickyDicky Life in the slow lane

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    Nice job!:thumb: did the same for my Kral did the vents make much difference i didn't bother with mine because its such a long barrel.
     
    Halinfax likes this.
  5. Halinfax

    Halinfax Full time tinkerer and general all round nice guy

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    Heyup TD... normally I would use the 30mm OD moderator on the Ultra which is VERY quiet in the field... however, the 27mm OD x 25mm ID does reduce the internal volume a bit... BUT.. the vents DO pass the pressurized air onto the shroud and it does vent at the breech.. and it is almost comparable with the standard mod.. so I am happy with it...:thumb:
     
    Snowman1960 likes this.
  6. John Gibbins

    John Gibbins Engaging Member

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    lovely work, and great little read as always. think you could get a book deal with all your fine tinkering
     
    Halinfax likes this.
  7. Halinfax

    Halinfax Full time tinkerer and general all round nice guy

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    Heyup John... thank you mate.... the bottom line is.. I just love making stuff and tinkering....:thumb::thumb:

    Necessity is the Mother of Invention....

    Stay safe mate..
     
  8. Alan Wood

    Alan Wood Engaging Member

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    Nice work indeed. It's now crying out for a longer Ti cylinder.
    I'm looking to do the same for my Scorpion when I get the funds.
     
    Halinfax likes this.
  9. Stevie Darling

    Stevie Darling Sexual tyrannosaurus

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    Nice work.

    Vented and moderated is the way to go. Venting some of the initial blast means a shroud can be a little shorter:up:

    Similar set up to mine apart from I have a vented barrel adapter threaded for a mod:)
     
    Halinfax likes this.

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