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2 posters

    PVC couplered BBBB with interchangeable barrels and barrel materials

    jacko1120
    jacko1120


    Posts : 197
    Join date : 2008-12-18
    Age : 30
    Location : Goldie

    PVC couplered  BBBB with interchangeable barrels and barrel materials Empty PVC couplered BBBB with interchangeable barrels and barrel materials

    Post  jacko1120 Mon Jun 14, 2010 5:02 am

    Hello,
    A quick write-up on how to put a 15mm pvc coupler onto your BBBB and have a few different barrels to choose from. im sure this has been done before but hey, every write up helps :).

    So first of all your going to want:
    • 1M of 15mm PVC (i got mine from bunnings)
    • A 15mm PVC coupler (from bunnings also)
    • A few different barrel materials (i chose PETG and aluminium)
    • A very strong airtight adhesive, maybe even 2 (on this BBBB i used a super plastics glue my dad had that bonds your fingers instantly, so be carful. on my first BBBB i used this + silicone sealant but just the super glue should be fine)
    • A screwdriver, e-tape and hacksaw/other cutting implement

    PVC couplered  BBBB with interchangeable barrels and barrel materials 14062010

    Step 1:
    Unscrew all the screws on the shell of the BBBB. Then using a knife/hacksaw/dremal cut the orange piece at the front at the top and bottom.
    PVC couplered  BBBB with interchangeable barrels and barrel materials 14062011

    Step 2:
    Pull the barrel and airtank out and place on a bench/vice. Cut the black barrel 2mm from where it meets the white plastic of the airtank.
    PVC couplered  BBBB with interchangeable barrels and barrel materials 14062012
    PVC couplered  BBBB with interchangeable barrels and barrel materials 14062013

    Step 3:
    Place the 15mm coupler around the barrel and glue into place on the inside, bottom and outside. Leave to dry.
    PVC couplered  BBBB with interchangeable barrels and barrel materials 14062014
    PVC couplered  BBBB with interchangeable barrels and barrel materials 14062015

    Step 4:
    While the glue is drying, cut out the 2 tabs so that the coupler can fit into the shell properly. Dont go to overboard though as then you will have to e-tape the whole gun to stop the trigger from being pulled when you pump the gun.
    PVC couplered  BBBB with interchangeable barrels and barrel materials 14062016

    Step 5:(optional)
    Grab the pump for the BBBB and using hot glue fill each of the holes on the o-ring end of it. This will allow you to fill the tank till you can't fill it no more or it explodes. So be careful.

    Step 6:
    Re assemble the gun and set aside for now. It is time to make the barrels.
    PVC couplered  BBBB with interchangeable barrels and barrel materials 14062017

    Step 7:
    Grab your M of PVC and mark out the length of each barrel onto it. Cut along the lines and file down the shavings. Then grab your barrel material and wrap e-tape around the middle and each end. The thickness of the e-tape depends on the O.D of the barrel you are using. Nestle the barrel inside the PVC and hey presto, you now have a BBBB that can shoot.

    Comments? Questions? (oh and sorry for crap picture quality, couldn't find my camera)
    avatar
    splosionman


    Posts : 159
    Join date : 2009-08-05
    Age : 79
    Location : Australia

    PVC couplered  BBBB with interchangeable barrels and barrel materials Empty Re: PVC couplered BBBB with interchangeable barrels and barrel materials

    Post  splosionman Mon Jun 14, 2010 10:57 am

    Just to add an alternate method of positioning the coupler. If you leave 1-2 inches (not sure on exact measurements) of the black barrel on, then wrap it in e-tape until you can only just ram the coupler over it and glue it on, it greatly reduces dead space and makes the coupler a lot more secure and straight.
    Hope thats clear enough.
    jacko1120
    jacko1120


    Posts : 197
    Join date : 2008-12-18
    Age : 30
    Location : Goldie

    PVC couplered  BBBB with interchangeable barrels and barrel materials Empty Re: PVC couplered BBBB with interchangeable barrels and barrel materials

    Post  jacko1120 Mon Jun 14, 2010 11:19 am

    Yer perfectly clear.
    It would be a great addition to this mod.
    Bit late for me though

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    PVC couplered  BBBB with interchangeable barrels and barrel materials Empty Re: PVC couplered BBBB with interchangeable barrels and barrel materials

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