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Photo Ninja
Philb2323
sniperdude49
NORTHENGHOST
Dietzie
|Shadow|
Swatsonia
littlebro05
RetfirDMX
13 posters

    Bullpup nerf homemade schematic

    RetfirDMX
    RetfirDMX


    Posts : 38
    Join date : 2011-08-19
    Age : 29
    Location : Illinois, USA

    Bullpup nerf homemade schematic Empty Bullpup nerf homemade schematic

    Post  RetfirDMX Wed Feb 15, 2012 4:47 am

    I've drawn up a schematic for a clip fed bolt action nerf bullpup blaster, but it's on hold at the moment. However, i still want to share it with you all, so here's my schematic.
    Bullpup nerf homemade schematic Nerfbullpup
    the potential for a remote plunger or cylinder and oversized cylinders is pretty good in a design like this, i think.
    the bolt is a dart-pushing type that seals against the barrel. there will be tightening rings to keep the dart from being loose in the barrel when chambered. priming will be like a longshot, a full cycle back and forward. mag release is a thumb push instead of a slide (easier to activate. pull-cable trigger catch, and everything else is up to my thought proccess when i'm building it.

    so what do you guys think?
    littlebro05
    littlebro05
    War Organiser
    War Organiser


    Posts : 2533
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    Bullpup nerf homemade schematic Empty Re: Bullpup nerf homemade schematic

    Post  littlebro05 Wed Feb 15, 2012 4:56 am

    Can't wait for you to make one :P. Would be interesting. There's definitely alot of moving parts though.
    Swatsonia
    Swatsonia


    Posts : 457
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    Location : Willeton, Perth, WA

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    Post  Swatsonia Wed Feb 15, 2012 5:20 am

    I can already see an issue with the air propulsion. Seeing as this is essentially working like an RSCB, the air is being released in front of the dart, which would obviously not propel the dart. Maybe moving the magwell a bit more forward?
    |Shadow|
    |Shadow|


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    Bullpup nerf homemade schematic Empty Re: Bullpup nerf homemade schematic

    Post  |Shadow| Wed Feb 15, 2012 5:29 am

    The best way to fix that i reckon is use the buzzbee rapid tech approach with the dart push.

    Something like this ...
    The bolt has a hole with o-ring seals both sides like the raipd tech.
    The bolt push the dart in and a hole on the top lines up with the air intake tube.
    And the dart fires at the same time when the bolt lines up with the air intake hole.
    So the air rushes through like a L peice on homemades.

    Should be able to get a nice seal with that too : D

    Dietzie
    Dietzie


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    Location : Granville, Queensland

    Bullpup nerf homemade schematic Empty Re: Bullpup nerf homemade schematic

    Post  Dietzie Wed Feb 15, 2012 5:55 am

    @ Swatsonia. Once the dart is chambered the air will be entering 1/3-1/4 from the rear of the dart with the area behind sealed.

    @ RetfirDMX. Don't take to long about building this or a big toy co. might just beat you to the copyright.

    I see no fault with this design and would love to see it completed and in action.


    ____________________________________________________________________________________________________________________________________________________________
    To grow old is inevitable
    To grow up is optional
    Adult member of the NIC: I PLAY WITH TOY GUNS AND I VOTE

    Trying to bring organized wars to the Fraser Coast

    Facebook: Knownas Dietzie. Find me through Brisbane Nerf Group or Fraser Coast Nerf Group
    RetfirDMX
    RetfirDMX


    Posts : 38
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    Bullpup nerf homemade schematic Empty Re: Bullpup nerf homemade schematic

    Post  RetfirDMX Wed Feb 15, 2012 6:05 am

    Dietzie wrote:@ Swatsonia. Once the dart is chambered the air will be entering 1/3-1/4 from the rear of the dart with the area behind sealed.

    @ RetfirDMX. Don't take to long about building this or a big toy co. might just beat you to the copyright.

    I see no fault with this design and would love to see it completed and in action.
    thanks. cambering style is the critical part of this design. the dart will be pushed forwards out of the mag by the dart pusher, which will seal the hole it's pushed through. air will still be free to pressurize behind the dart due to the dart pusher's tip shape.

    it might take a while to build since i'm currently allocating all my funds for my 4-coil EM accelerator (bolt action coil rifle). that project wont finish till middle of summer, and i can't guarantee i wont grow tired of building gun-like objects after a few inevitable surprises from the build process of the 2kJ capacitor banks.
    NORTHENGHOST
    NORTHENGHOST


    Posts : 116
    Join date : 2012-02-08
    Age : 25
    Location : Boyanup, WA

    Bullpup nerf homemade schematic Empty Re: Bullpup nerf homemade schematic

    Post  NORTHENGHOST Wed Feb 15, 2012 10:44 am

    The design looks like the Rayven... is this an air tank or a plunger style blaster?
    sniperdude49
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    Post  sniperdude49 Wed Feb 15, 2012 10:46 am

    Looks great
    Philb2323
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    Post  Philb2323 Wed Feb 15, 2012 12:37 pm

    This is mint! a nice clean simple design, I dont know why it hasn't been done before?
    Photo Ninja
    Photo Ninja


    Posts : 159
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    Post  Photo Ninja Wed Feb 15, 2012 12:38 pm

    I'm impressed, keep us updated will you? I think the plunger tube should be moved a tad back though. But the trigger then becomes tricky to implement.
    RetfirDMX
    RetfirDMX


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    Bullpup nerf homemade schematic Empty Re: Bullpup nerf homemade schematic

    Post  RetfirDMX Wed Feb 15, 2012 6:15 pm

    NORTHENGHOST wrote:The design looks like the Rayven... is this an air tank or a plunger style blaster?
    plunger
    Philb2323 wrote:This is mint! a nice clean simple design, I dont know why it hasn't been done before?
    manufacturer laziness?
    Photo Ninja wrote:I'm impressed, keep us updated will you? I think the plunger tube should be moved a tad back though. But the trigger then becomes tricky to implement.
    i'll look into it. trigger is easy wherever you put it.

    i think a multi-piston design is possible with proper space management. that way the downsides of the longer barrel length might be completely negated.
    Photo Ninja
    Photo Ninja


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    Post  Photo Ninja Thu Feb 16, 2012 11:11 am

    Yeah, I see what you mean. May I suggest an idea? If you may go for an airtank style, try semiauto (like magstrike) and that (in theory) takes less moving parts and have the same if not more power.
    ElementGuy
    ElementGuy


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    Post  ElementGuy Thu Feb 16, 2012 11:16 am

    Where is the actual priming handle, because if you are going for a smg look, i'd recommend shortening the priming mech down. And what are the two springs behind the catch?
    abowden
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    Bullpup nerf homemade schematic Empty Re: Bullpup nerf homemade schematic

    Post  abowden Thu Feb 16, 2012 12:07 pm

    I understand completely how this works, It is not complex, I hope you make it.
    RetfirDMX
    RetfirDMX


    Posts : 38
    Join date : 2011-08-19
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    Post  RetfirDMX Thu Feb 16, 2012 5:40 pm

    Photo Ninja wrote:Yeah, I see what you mean. May I suggest an idea? If you may go for an airtank style, try semiauto (like magstrike) and that (in theory) takes less moving parts and have the same if not more power.
    I might consider it but the precision tolerances are hard to do on a budget. Also to have it completely auto or semiauto, there will be many more parts than bolt action
    ElementGuy wrote:Where is the actual priming handle, because if you are going for a smg look, i'd recommend shortening the priming mech down. And what are the two springs behind the catch?
    The priming handle is right above and a little forward of the trigger. Its a bit further forward than a longshot priming handle position. Its connected to a big beefy boltsled, but i see your point in moving it to a more structurally sound position. Those springs behind the catch are an afterthought. They dont really need to be there.

    I'll look into the full auto design, most likely motorized cam actuated dartpusher and a 24 gram co2 tank with reactionary valves
    Philb2323
    Philb2323


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    Bullpup nerf homemade schematic Empty Re: Bullpup nerf homemade schematic

    Post  Philb2323 Fri Feb 17, 2012 2:16 am

    To take full advantage of it being a bull pup, you could turn the plunger around, so that it runs towards the front of the blaster, so you can shorten the amount of stock behind the Clip. It will take a slight redesign of the breech mech, but is very workable, especially for a resident genius



    late addition

    If you are making an entire blaster, making a proper trigger mech would not be too hard, getting rid of that cable would add a lot to reliability, and feel, if you are stuck for ideas on how to do this, PM me and I will happily help out. I'm just mindful of stepping on your toes.


    Last edited by Philb2323 on Fri Feb 17, 2012 2:25 am; edited 1 time in total (Reason for editing : Late addition)
    Ungodlyfreak
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    Bullpup nerf homemade schematic Empty Re: Bullpup nerf homemade schematic

    Post  Ungodlyfreak Fri Feb 17, 2012 4:13 am

    I like it. I can see some things that can be tweaked, altered and ultimately improved on, but that's really my own opinion. I have to say i really like it. I was actually considering something like this for my own homemade I'm working on.
    mister_elliott
    mister_elliott


    Posts : 327
    Join date : 2011-05-10
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    Location : Ipswich, QLD

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    Post  mister_elliott Sun Feb 19, 2012 4:30 am

    I know I should be impressed by so many details here, but what really stands out to me is the magazine catch. It's so simple! Will definitely consider it along with the bolt operation for future builds.
    RetfirDMX
    RetfirDMX


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    Post  RetfirDMX Wed Feb 22, 2012 7:47 pm

    There probably won't be any REAL progress beyond diagrams and concepts for this project until August.
    i try my best to be creative with those kinds of things like magazine catches and dart-chambering

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