Cannon energy contest

[Moonbogg]

Gee... Why does it have to be hand held?

He never specified how many hands.

EDIT- Standardizing the projectile to an airsoft bb could be troublesome because Australia banned airsoft.

Wait...is that a joke? Are video games banned as well? They better ban rubber band guns next since they resemble weapons of mass murder. Also, i'd be shocked to see Peter Pan books remain legal since they contain sword fights, clearly conditioning Austrailia's youth to be blade toting throat slashers of blood lusting evil. Don't EVEN tell me that boomerangs are still legal. Those were invented for MURDER of innocent animals.

EDIT: Women need to be made illegal. Afterall, they posess vaginas with which they could very easily commit the crime of prostitution which leads to aids which leads to DEATH!

[Ragnarok]

While a BB has the problem of availability in the land down under, they remain the best standardisation we can really offer (in a small size) between countries.

While I have some interest in a competition to build a small calibre "velocity" launcher, I cannot possibly justify building anything larger.

I'm sure allowances can be made for the Aussies... either that, or someone needs to find a suggestion for a small projectile that can be assumed standard and reasonably easily found worldwide.

[KineticAmbitions]

Wait...is that a joke? Are video games banned as well? They better ban rubber band guns next since they resemble weapons of mass murder. Also, i'd be shocked to see Peter Pan books remain legal since they contain sword fights, clearly conditioning Austrailia's youth to be blade toting throat slashers of blood lusting evil. Don't EVEN tell me that boomerangs are still legal. Those were invented for MURDER of innocent animals.

I agree fully. I'd rather not get started into a rant, but Moonbogg sums it up quite well. If you live in such a country, your first goal should not be to build the fastest airsoft gun, it should be to get out while you still can.

Otherwise, they could fashion a similar projectile from plastic rod. Or are scales, cutting tools, and plastic rod illegal as well?

[POLAND_SPUD]

don't you think that this is going too far?

suggest the splitting of categories into mechanical and electromagnetic

yeah and then divide both of them into two categories - 'launchers lighter than 1 kg' and 'heavier than 1 kg' or 'painted' and 'not painted'

lol people... currently ,there are only 4 cannons in the innovative design contest... but when they announced it everyone was like 'IDK yet... but I might take part in it'

I suspect it might be the same with with the penetration contest...
so what's the point of creating more categories and restrictions?

banning of metal guns on the grounds that they are better turns the whole idea of power/penetration/range contests into some sort of Special Olympics...

[jonnyboy]

lol @ aids joke.

I guess a cotton swabs could be feasible but there are many varieties and weights, surely no one brand is available in all of our locations?

Airsoft bbs tend to seem best now. The only active member I know from down under is crowley while airsoft is legal it seems very restrictive (read no automatics) there.

[Moonbogg]

lol @ aids joke.

I guess a cotton swabs could be feasible but there are many varieties and weights, surely no one brand is available in all of our locations?

Airsoft bbs tend to seem best now. The only active member I know from down under is crowley while airsoft is legal it seems very restrictive (read no automatics) there.

Lol, restrictive. I condone the tight restriction of rubber dart guns to a suction cup no larger than half the width of a human eyeball. A dart gun could easily be used to take people's eyes away from them by means of uber suction and yanking. Stupidass laws make me want to vomit. The US needs to invade austrailia.

[Ragnarok]

suggest the splitting of categories into mechanical and electromagnetic

yeah and then divide both of them into two categories - 'launchers lighter than 1 kg' and 'heavier than 1 kg' or 'painted' and 'not painted'

Sarcasm not appreciated. The two methods are leagues apart and should genuinely be split if both are being used.

Sometimes restriction and categorisation are needed. For example, it would be pretty pointless if men and women were to perform alongside one another at the Olympics.

[inonickname]

I weighed a packet of cotton swabs (Q-tips) and the average mass came out at roughly 0.2g, which was consistent across 3 different brands. I'm all for using Q-tips, so if we can find a brand available in Europe, the U.S. and Aus it should be happy families?

Should we set a ground rule? There is just one I suggest. Reactant mass (if Pneumatic) MUST be plain air, HPA (I suppose nitrogen is acceptable) or anything with equal or lesser performance. I can get access to high pressure hydrogen, though I'm willing to bet most can't. Unsure on combustion.

I'd be in this. Though people doing high mix hybrids would be one of the few things that could take away my edge..

They are suitable projectiles if you make them go fast enough..



Edit: I just realized, to account for any super high mix hybrids completely dominating competition split between pneumatic and combustion. Mechanical and EM guns could be split into either judged on several factors.

[Technician1002]

If this goes forward, I wouldn't mind sharing thoughts on how to compresson heat air a couple hundred degrees in a pneumatic to get a cotton swab to supersonic speeds. PM me.

I won't be able to add yet another build anytime soon. I'll finish the 3 inch and copper 1/2 inch first and move to my first combustion, a full auto bubble gum machine gun. Goal is high rate full auto combustion with at least 2 rounds/sec.

[THUNDERLORD]

What was the A!DS joke???
Read three pg.s, didn't see it.
The first symptom is a strong pounding sensation in one's @ss maybe?

Any how, is this thread at all related to the "Most Moar power contest" coming up, or not??? 8)

BTW, D^MN SHAME the "unbannable" "NO CRK HOS ALLWD" got banned, my new baby daughter was sleep and I couldn't/did not wish to click it at the time...PM me a linky or post a hint plz!!! (it looked funny)

[inonickname]

If this goes forward, I wouldn't mind sharing thoughts on how to compresson heat air a couple hundred degrees in a pneumatic to get a cotton swab to supersonic speeds.

Shhh...I'm using that in my design, and have at least 1397 fps @ 13.4 ft/lb. Possibly more. Mind pming me how much you believe the gas would be heated? (yes, good 'ol compressed air)

Edit: I'm building this whether or not it's gonna be a comp.

[Technician1002]

If this goes forward, I wouldn't mind sharing thoughts on how to compresson heat air a couple hundred degrees in a pneumatic to get a cotton swab to supersonic speeds.

Shhh...I'm using that in my design, and have at least 1397 fps @ 13.4 ft/lb. Possibly more. Mind pming me how much you believe the gas would be heated? (yes, good 'ol compressed air)

Edit: I'm building this whether or not it's gonna be a comp.

OK but for the rest of SF, use GGDT and barrel temp and work backwards. Compression heat is the inverse of expansion cooling.

A diesel engine is able to ignite oil with a compression ratio of about 16:1 and up.

[Moonbogg]

What was the A!DS joke???
Read three pg.s, didn't see it.
The first symptom is a strong pounding sensation in one's @ss maybe?

Any how, is this thread at all related to the "Most Moar power contest" coming up, or not??? 8)

BTW, D^MN SHAME the "unbannable" "NO CRK HOS ALLWD" got banned, my new baby daughter was sleep and I couldn't/did not wish to click it at the time...PM me a linky or post a hint plz!!! (it looked funny)

Respecting the admin's decision to ban the un bannable, I won't re post the actual link but I may suggest you visit an entertainment website called break.com

[psycix]

Lots of stuff going through each other in this thread... categorized post mode activate!

BB's are good
I think a bb is the best standard projectile you can get internationally.
I mean, airsoft is somewhat illegal in this country (due to the weapons looking too much like real weapons) but I know plenty of sources to get 6mm bb's. Everyone should be able to find them.

Splitting up categories
Mechanical and electromagnetic are different categories, electromagnetic will probably be more powerful if you've got the knowledge and the resources, but this is out of most people's range. They should be split.

But what if we haven't got enough participants? Then you shouldnt split up right?
The last contest had too less entries due to the required entry fee. Make entering the contest free to enter and you will have plenty in each category.

Pneumatic/hybrid
But... why are we excluding pneumatics and hybrids?
Of course pneumatics should not be in the same category as hybrids.
And would a springer count as a mechanical or a pneumatic?
Hydrogen/helium pneumatics should fall under the hybrid category if they want to participate that way.

Another idea
Another idea for the contest would be to build the most powerful bb launcher, with a maximum weight or size.

[inonickname]

And would a springer count as a mechanical or a pneumatic?

The reactant mass is compressed air, so therefore pneumatic. However this would put the most powerful 2 stage light gas guns in with a 100 psi pneumatic. It could be changed to "what most of the energy is derived from".

Everyone should be able to find them.

You call that no entry fee? In general, the minimum you purchase them in is thousands. Plus delivery for anyone who doesn't live near a store that supplies them. Q-tips are available to anyone. Hell, you probably have them in your house.

But what if we haven't got enough participants?

I can sure see that near no members here would make a mechanical launcher, and few have the supplies to make EM weaponry. We can't afford to put on too many restrictions.