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Simple mass-producable gun

Built a pneumatic cannon? Then post it here! This section is for completed, finished cannons that you have built. Please include pictures and information.
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What do you think of this gun?

Poll ended at Sun Feb 22, 2009 9:42 am

Good gun!
4
17%
Could be better
6
25%
Neutral
5
21%
Lousy.....don't bother with mass producable guns!
9
38%
 
Total votes : 24
  • Author
    Message

Unread postAuthor: limbeh » Sat Feb 21, 2009 1:01 am

Starman: True, perhaps I should have. But then this was done by my juniors, so that wasn't really under my control.

Makes no difference anyway, it's a design template, dimensions are up to the user to do as they see fit.

I'd probably go for an over-under instead. That way I could perhaps reduce the overall length of it.

The problem with longer barrels is that PVC pipe is quite flexible & bends quite easily. So, there is a limit to how long barrels can get.

I'll submit a report on projectile penetration in ballistic gel when my people have the time to rig up a ballistic gel setup. As it is, the Singapore school system is like most East Asian countries: we do a lot more work than Western countries. Hence the delay in coming up with the upgrade.
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limbeh
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Unread postAuthor: frozebyte » Thu Jul 09, 2009 10:07 am

Sorry for kicking up a topic 2months ago, but i really have to say this. im also from Sinapore, and i agree with john bunsenburner about not restricting those students.

They might seem like a major threat of some sort of terrible mischief but if you spend time to even expose them more to spudguns if they are really that interested and really get them involved in spudgun discussions, they would be more of a friend than a foe right?

Not many people are aware of spudguns here, let alone its construction, how it works and so on, but like what you said, isn't exposure good? So instead of telling them what to do, explain how it works and discuss and help them with their ideas.

There may still be a few singaporean spudders out there whom you dont know of cause this isnt common at all.(extremely rare) Hardly or never hear discussion of spudguns going on, no?

Good luck in exposing your science club to these pneumatic spudgunners, and if you are really aiming to go high level, you should really let them learn how this works and let those curious minds think for themselves.

Sorry for such a long comment, and im 14 this year by the way. If something doesn't work, you could ask the more experienced on this forum, isn't that what this is for? Everyone needs help in some sense, just like your students.

I'm just trying to state how i feel as Singapore really RARELY has this kind of opportunities and this hobby doesn't really click in with others in school (at least for me). Anyway, i think most spudders won't understand your hokkien phrases.

Cheers. :]

p.s. our society is probably world's apart from the other countries. NEVER fire this on public property, you don't want to get yourself in SERIOUS trouble. Im not sure about legality, know of it? I could do a little discussion with you for these spuds, more than willing to share what i learnt from here :] pm me.
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Unread postAuthor: john bunsenburner » Thu Jul 09, 2009 12:59 pm

Wow, happy to find agreeance in a topic that i barely remember. Nothing to add, though the legality would surely be intresting. I was talking about spud guns with a friend, who had made spray and pray, and used propane, telling me it was AWSOME(AWSOEM; AWESOME AAWSOM ASSUM and the rest are also alright, rag keep counting) I told him i had a little knowlafe about the topic, and that I'll show himt he real deal one day. Mentioned hubb's mouse shot, hehehe.
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Unread postAuthor: frozebyte » Fri Jul 10, 2009 1:50 am

Yep, old topic but i think i've got a reason to kick it up right? Don't that there are any other Singaporeans here to give their tips.

Shouldn't let the problem of kicking up old topics stop those young ones from having this extra experience that may or may not amaze your friends.

Sorry, but what is spray and pray?

Cheers.

p.s. received your pm limbeh. Hope we can work together closely and help each other in the process. Take my suggestion, swap to copper for an extra 2bucks! ITS WORTH for safety and it looks better too.
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