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5 posters

    CWC - Nerf EAB Modification Tutorial - Spring/catch upgrade and clip-fed breech

    clunk07
    clunk07
    Administrator
    Administrator


    Posts : 2953
    Join date : 2011-02-02
    Age : 41
    Location : Blackwater, Queensland

    CWC - Nerf EAB Modification Tutorial - Spring/catch upgrade and clip-fed breech Empty CWC - Nerf EAB Modification Tutorial - Spring/catch upgrade and clip-fed breech

    Post  clunk07 Tue Sep 20, 2011 5:32 pm

    Hey guys,

    Received my EAB from andtheherois a couple of days ago. He'd already made it clip-fed, but something must have happened in transit from the States to here, and when it arrived the breech was non-functioning.

    So, this is more of a replacement mod, than something from scratch.


    I won't go in to too much detail, as these aren't exactly a common blaster. Though well worth purchasing if you ever get the opportunity imo.

    Mark out where you want the clip to sit in the shell. Cut out the clip well. You'll need enough room for the clip to locate on the breech, with the front handle opened all the way down.

    CWC - Nerf EAB Modification Tutorial - Spring/catch upgrade and clip-fed breech Imag0123

    Open up the blaster. Align the clip with the orange barrel, mark it out, and cut another clip well.

    CWC - Nerf EAB Modification Tutorial - Spring/catch upgrade and clip-fed breech Imag0125

    The priming handle is fairly flimsy, especially when dealing with upgraded springs. Use e-putty to reinforce the bar and handle. I'm still rather doubtful if this will last the test of time, but fabricating a replacement bar/handle from mild steel will be a fairly simple task.

    CWC - Nerf EAB Modification Tutorial - Spring/catch upgrade and clip-fed breech Imag0126

    Cut your breech from 19/32" brass, and a barrel from 9/16". A piece of conduit glued to the barrel will make it easier to slide the breech open. Because the ID of the barrel is quite large, I've used 25mm conduit, e-tape and insertion rubber to nest it. You'll also want to cut a 1cm piece of 1/2" brass, and glue this in to the plunger end of the breech to serve as a dart-stop.

    CWC - Nerf EAB Modification Tutorial - Spring/catch upgrade and clip-fed breech Imag0127

    Breech assembled. Nest it in to the barrel, and use hot glue to secure it at both ends. Not the easiest of tasks at the plunger end, but it is possible to accomplish without making too much of a mess.

    CWC - Nerf EAB Modification Tutorial - Spring/catch upgrade and clip-fed breech Imag0128

    The plunger head seal is quite poor. The EAB came with a custom-made plunger head, but it wasn't my style. So, I've combined the rubber sheeting from the custom plunger head, with the stock plunger head. The seal seems quite good. A cut-down K26 spring is what I've used for the spring upgrade. Obviously, the catch spring will also need upgrading to deal with the increased load.

    CWC - Nerf EAB Modification Tutorial - Spring/catch upgrade and clip-fed breech Imag0129

    A thin sheet of alu to reinforce the spring rest.

    CWC - Nerf EAB Modification Tutorial - Spring/catch upgrade and clip-fed breech Imag0130

    Finished Product:

    CWC - Nerf EAB Modification Tutorial - Spring/catch upgrade and clip-fed breech Dsc_1525


    Apart from the priming handle feeling a little flimsy, this is a really comfortable blaster to use. I'm sure that with some more work to the plunger head, this would be a really handy blaster.

    Current ranges are approximately 85 - 90 feet flat, using blue foam stinger's.
    It will pierce styrofoam, but not cardboard, so velocity is fairly average.

    Cheers,






    ____________________________________________________________________________________________________________________________________________________________
    CWC - Nerf EAB Modification Tutorial - Spring/catch upgrade and clip-fed breech Cwc_lo10

    Clunk Weapons Co. Blaster-smith Services:
    Commissions offered on Stampede, LongShot, Spectre, LED Maverick.

    CWC Blaster-smith Services
    CWC Custom Paint
    melbnerf619
    melbnerf619


    Posts : 711
    Join date : 2011-01-22
    Age : 25
    Location : E-Hills Melbourne

    CWC - Nerf EAB Modification Tutorial - Spring/catch upgrade and clip-fed breech Empty Re: CWC - Nerf EAB Modification Tutorial - Spring/catch upgrade and clip-fed breech

    Post  melbnerf619 Wed Sep 21, 2011 8:54 am

    Will this fit any drums?
    Great work as usual Clunk
    -James
    Unknown
    Unknown


    Posts : 997
    Join date : 2010-07-07
    Age : 23
    Location : North Brisbane

    CWC - Nerf EAB Modification Tutorial - Spring/catch upgrade and clip-fed breech Empty Re: CWC - Nerf EAB Modification Tutorial - Spring/catch upgrade and clip-fed breech

    Post  Unknown Wed Sep 21, 2011 8:57 am

    How big is that plunger tube? In the pictures it looks tiny but to get 90ft ranges it must be fairly big.
    melbnerf619
    melbnerf619


    Posts : 711
    Join date : 2011-01-22
    Age : 25
    Location : E-Hills Melbourne

    CWC - Nerf EAB Modification Tutorial - Spring/catch upgrade and clip-fed breech Empty Re: CWC - Nerf EAB Modification Tutorial - Spring/catch upgrade and clip-fed breech

    Post  melbnerf619 Wed Sep 21, 2011 9:01 am

    Unknown wrote:How big is that plunger tube? In the pictures it looks tiny but to get 90ft ranges it must be fairly big.

    I think it's just really wide. I mean look at the massive plunger head.

    -James
    Xoenz
    Xoenz
    Donator
    Donator


    Posts : 538
    Join date : 2010-12-30
    Age : 24
    Location : Liverpool, NSW

    CWC - Nerf EAB Modification Tutorial - Spring/catch upgrade and clip-fed breech Empty Re: CWC - Nerf EAB Modification Tutorial - Spring/catch upgrade and clip-fed breech

    Post  Xoenz Wed Sep 21, 2011 9:03 am

    Ahh, so thats an Expand a Blast.

    Pretty Nifty, I like it
    clunk07
    clunk07
    Administrator
    Administrator


    Posts : 2953
    Join date : 2011-02-02
    Age : 41
    Location : Blackwater, Queensland

    CWC - Nerf EAB Modification Tutorial - Spring/catch upgrade and clip-fed breech Empty Re: CWC - Nerf EAB Modification Tutorial - Spring/catch upgrade and clip-fed breech

    Post  clunk07 Wed Sep 21, 2011 10:52 am

    The plunges tube isn't very long, but it's quite a large diameter. I'll try to remember to measure it When I finish work.

    Cheers,


    ____________________________________________________________________________________________________________________________________________________________
    CWC - Nerf EAB Modification Tutorial - Spring/catch upgrade and clip-fed breech Cwc_lo10

    Clunk Weapons Co. Blaster-smith Services:
    Commissions offered on Stampede, LongShot, Spectre, LED Maverick.

    CWC Blaster-smith Services
    CWC Custom Paint
    clunk07
    clunk07
    Administrator
    Administrator


    Posts : 2953
    Join date : 2011-02-02
    Age : 41
    Location : Blackwater, Queensland

    CWC - Nerf EAB Modification Tutorial - Spring/catch upgrade and clip-fed breech Empty Re: CWC - Nerf EAB Modification Tutorial - Spring/catch upgrade and clip-fed breech

    Post  clunk07 Thu Jul 26, 2012 10:51 am

    And the finished product, finally. With a bit of tweaking, it's consistently hitting 95ft flat average.

    CWC - Nerf EAB Modification Tutorial - Spring/catch upgrade and clip-fed breech Dsc_0219

    Cheers,


    ____________________________________________________________________________________________________________________________________________________________
    CWC - Nerf EAB Modification Tutorial - Spring/catch upgrade and clip-fed breech Cwc_lo10

    Clunk Weapons Co. Blaster-smith Services:
    Commissions offered on Stampede, LongShot, Spectre, LED Maverick.

    CWC Blaster-smith Services
    CWC Custom Paint
    night stalker
    night stalker


    Posts : 129
    Join date : 2011-04-28
    Age : 22
    Location : beudesert qld

    CWC - Nerf EAB Modification Tutorial - Spring/catch upgrade and clip-fed breech Empty Re: CWC - Nerf EAB Modification Tutorial - Spring/catch upgrade and clip-fed breech

    Post  night stalker Fri Jul 27, 2012 9:50 am

    OMG! That is so awsome!
    I love your work that you do.
    Nice job!

    Sponsored content


    CWC - Nerf EAB Modification Tutorial - Spring/catch upgrade and clip-fed breech Empty Re: CWC - Nerf EAB Modification Tutorial - Spring/catch upgrade and clip-fed breech

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