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.:MHR:.

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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.:MHR:.

Unread postAuthor: experament_u2 » Wed Oct 18, 2006 3:31 am

MHR
this is my second pneumatic gun the marble hunting rifle or MHR for short.
it will shoots marbles and has a 6 shot magazine, unfortunatly the sprinkler valve on it at the moment is broken so i need to mode another one and give it a coat of paint.

i will be finishing it hopfally over the weekend so il post the finished pictures then
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Attachments
DSC00078.JPG
looking down the barrel
DSC00077.JPG
the stock (my crapy broken sprinkler)
DSC00076.JPG
barrel & valve
DSC00079.JPG
side shot
DSC00075.JPG
bolt action magazine (6 shot)
DSC00074.JPG
full gun
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Unread postAuthor: MrCrowley » Wed Oct 18, 2006 3:38 am

you have a bit of dead space but other then that nice cannon
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Unread postAuthor: experament_u2 » Wed Oct 18, 2006 3:42 am

it is being designed to be confy and copact it all unscrews and fits in my bag easly so it can be lugged around :D
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Unread postAuthor: SquishY » Wed Oct 18, 2006 4:03 am

Does it get the power you expect or want from it, so long as it makes you happy it's the perfect gun, I'm not trying to give one of those crappy speeches but this is how I really look at it.
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Unread postAuthor: experament_u2 » Wed Oct 18, 2006 4:15 am

i havent tested it yet but it seams whenever i post a gun everyone kicks me in the balls :( its my second gun geez give me a break and besides its not even finished
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Unread postAuthor: rna_duelers » Wed Oct 18, 2006 5:43 am

Did you off mount the blow gun on this?Or just cant drill straight..lol...Is that a pope sprinkler valve because i can show you how to modd it do the guide rod can be taken out and the blow gun mounted in the hole straight.What type of pvc did you use? PN12?PN18??
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Unread postAuthor: experament_u2 » Wed Oct 18, 2006 6:07 am

yea i did off mount it and yes it is a pope but wat do u mean type of pvc did i uses? and if u can help me that would be much apreciated
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Unread postAuthor: POS » Wed Oct 18, 2006 6:08 am

I like the shape of the gun. You should however put the prinkler valve much closer to the barrel, cause then you have a bigger chamber (stock included) but also much less dead space. The dead space is the space between the sprinkler valve and the actual place where the ammo enters the barrel and wait to be shot.

Like this, when you open the valve, shoot the gun, most of the pressure gets lost in the dead space.

Since your gun can be taken apart very easily, you should consider to put the valve closer to the ballre. It will improve performance a big deal.

Oh, an an othert hing, I am nog hacking on you. Everyone needs to learn. I did much much research before i started building, so I had a pretty good idea of what can go wrong and how to build a good gun. However, my first gun, the MB1 was not e succes. The second one, the MB2 is (man, i love that gun)

You can not expect when you made a gun, and post it here, that everyone likes it, and want to copy it. Like you said, it is just your second gun. You have a lot to learn, before you make a gun with which you can hit and destroy a target at a distance of 500 yards. But everyone has to start somewhere. When peolpe say your gun isn't good, they also tell you why it isn't. So next time you can improve your gun. Isn't that the purpuse of posting it ? Or do you just wane show off ?
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Unread postAuthor: experament_u2 » Wed Oct 18, 2006 7:05 am

thanks for the help but the only other place to put the sprikler is were u rest ur cheak and it is very uncoftable as i found out
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Unread postAuthor: PVC Arsenal 17 » Wed Oct 18, 2006 2:07 pm

hmmm.... just curious, did you use some kind of high temp grill paint on that? I painted a few of mine with it and scratched off just like yours. No other paint has ever done this.
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Unread postAuthor: experament_u2 » Thu Oct 19, 2006 12:25 am

im not sure wat it was but i just found it in the shed and those bits were recycled from one of my old guns thats y they r looking a bit beat up
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