Epoxy questions (aka JSR's field day)
right now im designing a bb gun for a friend cause he asked
but i will get his battery powered airsoft gun as payment
anyway i think i can meet most of the requirements he gave me:
600 fps: GGDT says i can with some rough numbers i used
semi auto: see below
CO2 powered: Easy enough
250+ feet range: Range Calc says maybe
So far ive come up with a coaxial design (i can make models if you require visual aids), but i am having trouble thinking of how i will make it semi auto.
But, before i post my idea i need to know if you can dremel part of a piston cast with epoxy out. Or will it crack and crumble?
but i will get his battery powered airsoft gun as payment
anyway i think i can meet most of the requirements he gave me:
600 fps: GGDT says i can with some rough numbers i used
semi auto: see below
CO2 powered: Easy enough
250+ feet range: Range Calc says maybe
So far ive come up with a coaxial design (i can make models if you require visual aids), but i am having trouble thinking of how i will make it semi auto.
But, before i post my idea i need to know if you can dremel part of a piston cast with epoxy out. Or will it crack and crumble?
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- Staff Sergeant 3
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I don't see why you couldn't dremel epoxy. What were you planning on doing? O-ring grooves?
I've dremelled epoxy before, but it has a nasty way of clogging tools. And I needn't remind you to wait until it's hardened...
And semi-auto sounds like it could be a challenge. Did you have any plans for the feed mechanism?
And semi-auto sounds like it could be a challenge. Did you have any plans for the feed mechanism?
Does that thing kinda look like a big cat to you?
- Zen///
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Mon canard est en feu!!!
"My duck is on fire!!!"
Lol I go to french immersion school.
On topic: Maybe make a high powered vortex gun? And make the vortex block out of epoxy and drill various sized holes?
edit: http://www.spudfiles.com/forums/unregul ... 11684.html
or like that
"My duck is on fire!!!"
Lol I go to french immersion school.
On topic: Maybe make a high powered vortex gun? And make the vortex block out of epoxy and drill various sized holes?
edit: http://www.spudfiles.com/forums/unregul ... 11684.html
or like that
- MrCrowley
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Full metal BBMG? Maybe some awesome lathe aluminium vortext block which you didn't want to blunt all your drill pieces on?
I learn German, not French. German is way better, just ask JSR
I learn German, not French. German is way better, just ask JSR
- ShowNoMercy
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But a lathe could turn out a vortex block, you would need a mill.
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It seems you've lost your way
- jackssmirkingrevenge
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So far ive come up with a coaxial design (i can make models if you require visual aids), but i am having trouble thinking of how i will make it semi auto.
The blow-forward breech is a good idea and relatively simple to make.
Depends on the epoxy you're using - the marine epoxy I use can be cut, drilled, sanded and polished easily, butfor example you cannot do that with araldite.But, before i post my idea i need to know if you can dremel part of a piston cast with epoxy out. Or will it crack and crumble?
Lol I go to french immersion school.
sounds hairy
hectmarr wrote:You have to make many weapons, because this field is long and short life
well, i will not be showing my idea cause jacks gun puts it to shame so ill be using the blow-forward breech design, i was afraid at first of using it cause of the small size of the gun but JSR proved u can do it so i shall try it.
btw,i didnt read the whole topic but i thing that if you decrease the filling fitting diameter you could get closer to fully auto with the design
btw,i didnt read the whole topic but i thing that if you decrease the filling fitting diameter you could get closer to fully auto with the design
I understood the "Mon canard est en feu" bit, but I'm Canadian in Grade 10 French, so I probably should.
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- mark.f
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The blow-forward design is definitely your best bet. I have tried the paddle design for automatic fire, and it plagued me with feeding troubles never fully resolved.
- jackssmirkingrevenge
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Here's a breakdown of the parts. All the tubing was purchased in one metre lengths from a hobby store, but you can find it online too.
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- blowforward.jpg (19.87 KiB) Viewed 2020 times
hectmarr wrote:You have to make many weapons, because this field is long and short life