Introduction: All Aluminum Mini Spud Gun

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About: 17 Years old, doing a Masters in Professional Engineering (chemistry/mechanical) starting at UWA next year. I like designing and building things, as well as competitive archery

Here's my latest mini spudgun built as a miniature replica of the cobra venom by Moonbogg.

Basic specs:
Barrel: 12.5 cm long, 3.5mm bore
Chamber: 2.5 cm long, 9mm i.d (it is longer, chamber plugs occupy a large amount of space)
Over/under construction with chamber brace and fore barrel support.
Chamber plug is threaded and has a built in check valve
2 spark gaps
Propane, MAPP or oxygen-hydrogen fuel (metered)

Spudfiles thread:
http://www.spudfiles.com/forums/viewtopic,p,250551.html#250551

Me making miniature replicas on request:
http://www.spudfiles.com/forums/viewtopic,p,250552.html#250552

Inspiration, the Cobra Venom by Moonbogg:
http://www.spudfiles.com/forums/the-cobra-venom-t17948.html

Will I do an instructable? Depends. If someone suggests a good cannon for me to replicate (on SF) I might.. make one. Though these are very intricate, requiring a lot of understanding, planning and determination..

Also, my camera crapped itself so photos are taken with phone.