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Unread postAuthor: jackssmirkingrevenge » Tue Dec 04, 2012 5:05 pm

For those familiar with Prodigy's original music video, this is awesome :D

http://cheezburger.com/45357057
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Unread postAuthor: jakethebeast » Tue Dec 04, 2012 6:00 pm

Thinking of making a hybrid for new years eve... maybe like 40mm bore, from 2" or 2,5" steel plumbing parts... Should i go for piston or bursk disk?
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Unread postAuthor: PaperNinja » Tue Dec 04, 2012 6:04 pm

I'm doing piston, faster fire rate + more reliability + you don't have to cut out burst disks. It just takes a little longer to make in the first place.
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Unread postAuthor: MrCrowley » Tue Dec 04, 2012 6:30 pm

Not so sure about more reliability, if anything there's more moving parts (1 compared to 0) and things that can go wrong or be damaged. With a burst disk cannon, once you've sorted out your method of sealing the burst disks you're pretty much sorted forever. Piston hybrids have to be maintained to ensure that the o-rings still seal, the piston isn't damaged, the bumper still works and you don't have issues like piston bounce.

If you have a good method of cutting disks out for a 2" burst disk, go with that. If you have to cut disks from soda cans or similar, and plan on firing regularly at 8-10x mixes, go with a piston. I hate cutting disks from soda cans for a 3/4" union, I can't imagine how much more annoying it would be for a 2" union; you'd need like 6 cans for one shot.

I think piston hybrids have the potential for a faster rate of fire but generally it makes no difference. If you want to achieve the fastest ROF possible with a hybrid, a piston hybrid would be the way to go. But considering how long it takes to load the projectile, set up the target, check safety procedures and fuel the cannon, I wouldn't consider ROF as an advantage of piston hybrids and in most cases they take just as long to set up as burst disk hybrids. Their potential is in automation; burst disk hybrids would be harder to automate than piston hybrids IMO.

For me, the advantages of a piston hybrid is being able to build something that is relatively difficult to make with basic tools (far more so than a burst disk hybrid) and not having to cut burst disks out of some thin metal.
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Unread postAuthor: PaperNinja » Tue Dec 04, 2012 6:59 pm

Honestly now that I think about it, I almost want to go burst disk...

You're right about the maintenance thing, also, I'll have a small caliber (.22) so a few layers of aluminium foil probably will work, and that's trivial to cut with a sharpened pipe.

Also, with a piston hybrid I would have to muzzleload, but then the choke gets in the way... with a burst disk I'd have to take it apart anyway so I could load from the breach and the choke wouldn't make any problems.
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Unread postAuthor: Lockednloaded » Wed Dec 05, 2012 12:02 am

http://youtu.be/PwoxTnHnZeQ

Easy little dart tutorial that could be adapted to spudguns, pretty cool if you've got some extra 20ga shells laying around
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Unread postAuthor: Zeus » Wed Dec 05, 2012 4:50 pm

If you just turn a 12GA wad around, and do the same, it'll fly just as well.
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Unread postAuthor: jakethebeast » Wed Dec 05, 2012 6:31 pm

Its 6th of December, a great day for a small northern country. They call it Suomi, other people call it Finland.

Exactly 95 years ago, we won our Independence from Soviet union. Our brave men fought in -40 degrees in Celsius and 1 meter of snow against the huge Soviet army in the great Talvisota. I believe you guys know it as the Winter war.

For over 100 years Finland was just a part of soviet union, with its own autonomy, Soviets decided to attack this place full of rebellion against Soviets. But we fought back. We didn't have lots of weapons, or even enough men, but with the great power of sisu we fought back as hard as we could.

In this war, we lost 25.000 brave men and women, and as some calculate, killed little under million soviets. Still, basically we lost the war.

Still, after the Talvisota, we gained our independence. Finland just seems to be a small meaningless country, but it has a great history.
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Unread postAuthor: MrCrowley » Wed Dec 05, 2012 7:23 pm

Do you know if the Nazis forced Finland to invade Russian land (past the pre-Talvisota Finnish-Russo border) because the Nazis had supplied Finland with military aid or was Finland just looking for a bit of revenge against the Soviets who were occupied with Operation Barbarossa?

Even though Britain declared war on Finland, I'm not one who considers Finland as an axis country during WW2. The Soviets invaded Finland to try and protect Leningrad from future attacks, Finland rightfully reclaimed their land (and a bit extra) when the Germans sieged Leningrad, then Finland refused to help either the Germans or the Soviets at Leningrad, and then they fought the Germans to push them out of northern Finland at the end of the war. After all that they ended the war having fought against both sides, lost land and money to Russia and stayed under Russian influence (mostly passive, I assume) for many decades.

It's amazing you guys came out of it all as well as you did, and you still have your dignity unlike the push-overs Denmark and Norway (just kidding!) :D


By the way, I can recommend the movie Talvisota to anyone who likes war films. It's a bit confusing at first, remembering who's who and what's going on, but the effects are great and the battle scenes frightening. If you can't find it online, check your video store as I'm pretty sure mine had it.
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Unread postAuthor: jakethebeast » Wed Dec 05, 2012 7:29 pm

Actually, both. We wanted our land back, while Hitler was persuading us to help Nazis. We made a deal with Nazis to get some weapons just because we really didn't have any :D

Really, im proud of what we have archived. Our tiny army against huge Soviet army. We really did fought back
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Unread postAuthor: POLAND_SPUD » Thu Dec 06, 2012 12:59 am

Let me correct that for you....
Do you know if the Germans forced Finland to invade Russian land
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Unread postAuthor: MrCrowley » Thu Dec 06, 2012 1:06 am

Let me correct that for you....
Haha back to this again, I guess this time I can sort of agree since it was Germans who invaded under Nazi rule. Same with regards to 'Russians' invading Finland under the name of the Soviet Union.
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Unread postAuthor: jackssmirkingrevenge » Thu Dec 06, 2012 2:00 am

jakethebeast wrote:In this war, we lost 25.000 brave men and women, and as some calculate, killed little under million soviets. Still, basically we lost the war.


Whether they win or lose, the Russians have a rare talent of suffering vastly disproportionate casualties to their enemies :D

Let me correct that for you...


Could have beenworse ;)
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Unread postAuthor: POLAND_SPUD » Thu Dec 06, 2012 11:51 am

nazis/germans aside...

I've been experimenting with hybrids for a while...

here is what just happened>>
[youtube]http://www.youtube.com/watch?v=uwWaaPvXwnk[/youtube]

surprising as the max mix I used was 7X ohh and before you ask that part wasn't like this before - been using it on several pneumatics


sry for crappy quality ohh and in case you're wondering - yeah that's saliva :D

EDIT
hmm I removed the T to inspect it and I can't even see the hole with my bare eyes - it must be really really tiny

I can't really tell whether it was a DDT or just a defective part that after years of abuse finally failed - or maybe both ?
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Unread postAuthor: MrCrowley » Thu Dec 06, 2012 2:47 pm

A pin-hole leak caused by combustion during hybrid operation? Can you see the hole or is it too small? That really is quite weird as I'm sure the fittings you use are almost identical to the ones everyone else uses. Looks like it's right on the seam as well which is a bit worrying. I guess you ended up with a fitting that had a manufacturing defect.
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