centrifugal airsoft gun

[scianiac]

After seeing the Mythbuster's confederate steam machine gun I considered the idea for a airsoft gun using the same principal. First of all I have condemned this idea temporarily because it is horribly inefficient and would chew through a battery pack pretty quick. It's powered by a Dremel rotary tool that has a max no load speed of 35,000 rpm, but the gun starts to destroy itself when pushed beyond 2/3 throttle. The barrel is made of copper tubing sleeved over a bic pen body. The drive block is made of Azec PVC outdoor molding (it's like a really dense PVC foam). Those four bolts push on a collar the goes around the neck of the Dremel to center it and stop the barrel from rubbing on the guard. One problem is that BBs hit the exit slot and destroy the end of the barrel but for some reason the gun never stops running even when they get jammed. All in all is has lots of flaws but it's current state is what it will stay for some time.

Please respond with questions/comments
If your interested in building something like this I have more information that would be helpful

specs
-------velocity: about 100 fps at 2/3 throttle
---rate of fire: as fast as I can put them in but each shot slows the rpms down
power source: 120v AC (limits mobility to the longest extension cord)
-----accuracy: poor and has hopside
barrel length: 3 in total 1.5 that the BB travels through

[youtube][/youtube]

[Carlman]

nice work mate!

prototype over now go for gold

[cowkiller]

when you built your gun did you make a timing device like the mythbusters or is it a drop and let go. if you made a timer system could you post the specs i would like to make one maybe even larger

[newbmatic]

Sorry, but how exactly does fire the BBs?

[Davidvaini]

looks good.. always nice to see people try new things...

You could always add a hopper, hook up a remote circuit with it and have it as a mine in an airsoft match

[jackssmirkingrevenge]

I think this project is a much more viable source of inspiration and advice than anything the mythbusters had accomplished in that show

[jonnyboy]

Nice proof of concept. Get a bigger motor with some decent torque and some fast rpm.

[scianiac]

That's the part I differed from their design. I thought it would be difficult and unnecessary, but it probably would have solved the barrel destruction and increased velocity. The rounds wouldn't hit the guard and expel some of their energy.

Their has been many designs for such a weapon in the past and even a company that is developing one for the U.S. government.

http://thedonovan.com/archives/2008/03/tidying_up.html
http://strangengines.wordpress.com/cate ... ugal-guns/
http://www.defensereview.com/modules.ph ... le&sid=526

jackssmirkingrevenge: I saw that project a while ago but neglected to follow the address to find out what the fps and that it is battery powered. The whole idea seems much more feasible now. But I have to finish some of my other projects first.

newbmatic: