Launch It! Contest on instructables.com

[goathunter]

I know exactly how it works.He based his design off of a modified sheridan valve. The problem with the design is that every 1000 shots(or intermittent failure) you have to replace the o-rings and seals.At least MY PGP it is that way.

http://www.zdspb.com/media/tech/animations/sheridan.gif

[MrCrowley]

Yeah I saw that, I thought that pen might float your boat JSR, seemed like your type of thing

[jackssmirkingrevenge]

http://www.zdspb.com/media/tech/animations/sheridan.gif

Interesting, looks similar in principle to the way that many gas-blowback airsoft guns work.

I thought that pen might float your boat JSR, seemed like your type of thing

lol thanks ;p

[MrCrowley]

Okay this is as much as im going to do on it, it better be enough:

http://www.instructables.com/id/E77FEVOF5Y3KXN5/

[jackssmirkingrevenge]

Rifling the barrel on a sypherical object has almost no effect.

I'll have to correct you on that, rifling was used for centuries with round lead balls before non-spherical projectiles were invented - if it didn't have an appreciable effect on accuracy, they wouldn't have bothered.

[MrCrowley]

Rifling the barrel on a sypherical object has almost no effect.

I'll have to correct you on that, rifling was used for centuries with round lead balls before non-spherical projectiles were invented - if it didn't have an appreciable effect on accuracy, they wouldn't have bothered.

Haha fair enough, truthfully I had to leave for school in 5minutes and couldn't be screwed searching up to check, I had heard that it had no effect and it had little effect, so I was unsure and just did 50/50

Though what is really the point? I could see it would be helpfull if it worked a kind of a hop-up system to keep the bullets parabola(sp?) as flat as possible over a certain distance.

[jackssmirkingrevenge]

Have a look here.

[MrCrowley]

Oh yeah it just came to me, I remembered watching/reading something about how sypherical objects curve in the air.

What do you think of the instructable? Enough info? I should post it here or at least link to it.

[clide]

Hey, MrC's Instructable was one of the Instructables in their weekly newsletter of cool new projects. Good work, I think you have a pretty good shot at winning.



Edit: Forwarded the email to you MrC

[MrCrowley]

Was it really? Could you link me or was it an email? If it was an email could you forward it to me? (mr.crowley45@gmail.com)Thanks.

I've been advertising this thing like crazy on forums, without looking obvious, otherwise i'll get banned. I think im 3rd or 4th for views, but catching up fast and im 2nd for votes I think.

[PCGUY]

So is this contest over now?

[MrCrowley]

Sure is, came second and won a shirt

[PCGUY]

Just wanted to be sure, so I could unsticky.

Glad you won!