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5 posters

    Recon BB-8 (BB for Big Blast)

    beigeman
    beigeman


    Posts : 38
    Join date : 2009-09-18
    Age : 39
    Location : Canberra

    Recon BB-8 (BB for Big Blast) Empty Recon BB-8 (BB for Big Blast)

    Post  beigeman Sun May 09, 2010 1:53 pm

    UPDATED WITH RANGES

    Righto, as a comeback to nerfing I decided I'd finish brassing up my Big Blast, only to discover that somehow in the last few months I'd managed to mislay all of the screws for the housing. Oh dear, whatever would I do? While the insides looked like you could effectively glue on a handle and have this interesting space-gun-thing (a project for another time methinks) I decided that as a primary, I should have a slightly more durable covering for it than none at all.

    So here it is, the Recon BB-8.

    Recon BB-8 (BB for Big Blast) Bb01
    BB for Big Blast, and 8 for the max shots it can hold; 6 in clip, 1 in short barrel, one in extended barrel.

    Recon BB-8 (BB for Big Blast) Bb02

    Remembering my butchered Recon (click here for the original recon) that I'd pulled apart for an extra spring to add to the longshot, as well as a buggered slide (etc.), I decided to put the two together.

    Alas, all photos are post-creation, so you'll have to use your imagination.

    Recon BB-8 (BB for Big Blast) Bb03

    I cut up the main part of the shell from where the hole for the slide-bar starts at the front back to just above the clip lock mechanism, following the slide-bar hole the whole way. Any internal dividers/supports above the trigger mechanism were clipped out; except for the ones that hold the orange front piece on, and the screw holes.

    I experimented with brass length and ended up with a few inches that slot into a cut-down Big Blast barrel and the orange front piece with only minor plastic snipping (the 9/16" brass fits perfectly into both pieces). Enlarging the hole at the back by snipping off the boxy rear section that would connect the stock, I also cut away pieces of the slide (just below the 'CS') so the tank would fit.

    The stock took a lot of fiddling (massive underestimation of complexities) but eventually got it so it slid well and could move the entire distance of the pump. Little shaky if you overdraw, but fine if you know the gun's limits.

    Secured the top of the BB trigger mechanism to the shell with a U shaped piece of coat-hanger wire wrapped in e-tape in the middle, and poking through the outside of the shell. If I had more patience and could find the rest of my tools I'd have made it look prettier, but I was well into it by now and didn't want to stop to look for my dremel, long bolts, etc.

    Secured trigger mechanisms of both guns together with 1mm copper wire made into a loop that starts on the Recon trigger, loops around the BB firing mechanism and back.Had to experiment with positioning to get the best result.

    The whole assembly is held incredibly tight by the shell, so I've had no need to reinforce it... yet. Will see how it's going after the first game, but basically it would entail epoxy-ing a couple of cylindrical pieces of plastic to the tank and the corresponding section of shell before screwing them together. Or just gluing it in.

    Last part is to take a 17/32" brass tube approximately the length of the Recon's extended barrel and wrap both ends in e-tape, with the connecting part wrapped a couple of inches away from the end so it can slide into the 9/16" brass in the recon. With the leftover brass I made a 4" pipe that I keep in the Recon's handle as a "quickfire" option.

    With ten shots for each barrel I have finally tested the ranges. The Long Barrel average range is 116' (35.5m) and the Short Barrel average is 84' (25.5m). Significantly better than I thought it would be having only used Nerf brand previously.

    Accuracy over 35' (10.5m) is amazing, even with the shorter barrel. 3 pumps will generally get best result, but I fear with a sacrifice in range. As far as where the 35' comes from, that's the length of my hallway (the entire length of my house). At that range there's only about 1' (30cm) degradation from being fired at 5' up (150cm). And yes, that's level. Not the best figures, but will have to do proper tests; a tripod, a spirit level, another person, an afternoon, and a park are all required.

    I'm sure it's been done before in a variety of ways, but I thought I'd throw it up anyway, see what people thought and see if you might suggest different options, lengths etc. The BB has had very little done to it, just Ar removed and grafted into the recon frame.

    Stay Groovy
    :{>


    Last edited by beigeman on Wed May 12, 2010 5:44 am; edited 1 time in total
    melbourneSTORM4eva
    melbourneSTORM4eva
    Founder
    Founder


    Posts : 389
    Join date : 2008-12-19
    Age : 28
    Location : Gold Coast ,Queensland

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    Post  melbourneSTORM4eva Sun May 09, 2010 2:48 pm

    Bloody nice work mate!

    MS4E
    -Aj-
    -Aj-
    Moderator
    Moderator


    Posts : 406
    Join date : 2009-07-20
    Age : 34
    Location : Adelaide. South Australia

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    Post  -Aj- Sun May 09, 2010 4:21 pm

    Great work, using the recon attachment system as a coupler is a nifty idea indeed

    Aj
    MrMoo
    MrMoo


    Posts : 5
    Join date : 2009-08-21
    Age : 37
    Location : Canberra, ACT

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    Post  MrMoo Wed May 12, 2010 8:27 am

    Very nice indeed, I'll second AJ's comment regarding using the barrel attachment system as a coupler, and using the raider stock for the pump is very nice too!

    Just checking though, I assume you're doing range/accuracy tests with modded darts? I easily get 15m (none of this silly feet business ) out of my big blast with a 12" PETG barrel using streamlines, but as you know they go absolutely everywhere except straight ahead, and I'm not game enough to shoot hot-glue tipped darts inside at my parents' nice walls
    beigeman
    beigeman


    Posts : 38
    Join date : 2009-09-18
    Age : 39
    Location : Canberra

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    Post  beigeman Wed May 12, 2010 5:36 pm

    Yeah, sorry I should've mentioned. I'm using the hot-glue-filled-tip streamlines in the tests. The unmodified streamlines shot everywhere. The furthest dart was a whopping 55m, and sailed quite erratically after the 30m mark.

    I honestly hadn't thought about the barrel extension as a coupler until I tried to figure out how to get the dart all the way to the back of that chamber. One facepalm later and I remembered it was designed to be removed. Goes to show what happens when you try to mod a gun at 1am. I haven't been sleeping much lately, blame my infected toe and unstable mind.

    After seeing what the space is like inside the raider and how the BB internals fit, it would be possible to create a pump-action shotgun-grip version. Looking to purchase a new recon and give it a go with my newfound love for Big Blasts. Unless someone out there has an old one with the barrel extension they don't mind selling me... I don't need internals, just the shell.

    Thought being that if you spin the internals 180* so the pump is forward, attach a couple of pipe bends so the barrel (with breach) begins where the clip is normally inserted, then the gun can be primed with a 'shotgun' motion (assuming you've modded the front properly) with little deadspace, a long barrel for accuracy and range, and all mostly fitting in the recon frame. I say mostly as you'd have about 5cm of internals above the shell.... something for me to plan...

    Or alternatively, the same setup, but with 2 BB internals joined together on either side of the clip and main barrel assembly. Or is that overkill?

    :{>
    Hamish
    Hamish


    Posts : 213
    Join date : 2009-10-08
    Age : 27
    Location : Adelaide

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    Post  Hamish Thu May 13, 2010 9:31 am

    Yeah great idea!

    I might try the raider one since I can't be bothered fixing mine.

    -Hamish

    P.S. Its nice to see your alive again BM

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