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|02-09-2012, 01:34 PM||#21 (permalink)|
|02-09-2012, 01:57 PM||#22 (permalink)|
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Join Date: Oct 2009
what about using a spring to slow down the bolt?
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|02-09-2012, 01:59 PM||#23 (permalink)|
Join Date: Oct 2007
Location: Plattsburgh, NY
I made a direct acting system using a youth recurve once. Nowhere near full velocity, but an interesting exercise. If a slingshot doesn't destroy paint, a bow type should be fine. Eliminate all gap between bolt face and ball for starters. Foamie on steroids will be pretty crucial too.
|02-09-2012, 02:20 PM||#24 (permalink)|
Join Date: Jul 2011
Location: Panama City, FL
If there's anyone who can make a bolt and power tube w/ detents for this, I'll pay whatever nessessary for it!
|02-09-2012, 02:24 PM||#25 (permalink)|
Join Date: Apr 2006
Location: Vancouver, BC
It would be interesting to preserve the piston design of the airow gun, but feed the air into a spool valve that would hold the air back until it reaches a certain pressure, at which point it would vent its contents into a bolt and barrel. Instead of the super long dwell at low pressure like the airow gun, it would be more like a paintball gun shot. Kind of like a L7 bolt in a Mag.
|02-09-2012, 02:32 PM||#26 (permalink)|
Hmm... Mag parts... Actually might be a good way to go.
|02-09-2012, 02:36 PM||#27 (permalink)|
Join Date: Apr 2006
Location: Vancouver, BC
Since you aren't dealing with the Automag on/off, rail and body tolerances wouldn't be a huge issue.
|02-09-2012, 03:00 PM||#28 (permalink)|
Not a Squatch...
What about those little pistol crossbows? If you attach a plunger to the string to act as a piston to compress air into a tube, which in turn gets released to fire a ball? It would make it so it isn't so much like dry firing because you would have resistance as the tube is pressurized. Does this make sense?
|02-09-2012, 03:03 PM||#29 (permalink)|
Join Date: Aug 2007
yea Russ that's sorta what I had in mind... along with twin pistons to convert the crossbow firing energy into air pressure, which are operated by a sled on a guide rail which the string goes through. the sled would also operate the action at the end of its travel with a disconnected action. the main challenge really, is where the breech is located, and how much barrel length can fit in nicely. I think a regulated/valved firing chamber could be set back from the pistons and then have the breech behind and above/beside that.
Last edited by ApoC_101; 02-09-2012 at 03:14 PM.
|02-09-2012, 03:11 PM||#30 (permalink)|
Join Date: May 2011
Location: am I where I am
The following is not trying to piss in cheerios and if you can do this I would probably pay for one but....
This same idea occurred to me about a year or so ago
a few problems with just directly mounting the airow system to a crossbow
60# draw at 29" is the "recommended" for a compound bow to get you 250-300fps Paint speed
translate this if I remember the math I was trying to do last year
your looking at around 150# / 14" or so
as mentioned and a few not
draw length vs power stroke being the main area of concern
total length of the setup being another imo
NOISE - while quieter than say any percussion firearm for the most part they still make noise and distinctive noise at that more so than any compound bow
DRAWING THE BOW - in order to get enough pressure in the system to get you 250-280FPS paint your talking a non fun time hand (neck actually but meh) pulling the string or a crank system
SIZE - look at the length of the airow system on a compound bow that would be attached 4-6" from the tip of the crossbow
MASS WEIGHT - lugging a crossbow loaded with just a bolt (with maybe an attached quiver with a few spares) through the woods/into the mountains after a few hours is a PITA - thank god for ATVs anyways - imagine the extra length and weight attached all at one end mind you to make sure your paint system doesnt go flying after the paintball
Not to remention but firing a "basically unloaded" crossbow(although the inverse pressure built up through the airow system should prevent this I never bothered to test it or run the math due to all the other "factors") can cause catastrophic failure of your stock, arms & string. You basically have a really fast moving cable with metal attached unraveling in your hands and expelling all its stored energy in less than a second right about head height where your standing which imo is not a good idea
You might at well stick a pump/MAG in a stock and set it up for FS rounds
unfortunately you need an air source but if your using it limited capacity get a dual 12g changer or fill from a source bottle into an 8ci onstock just a thought.
should be just as quiet if not more so than a firing crossbow
able to use regular .68
now just figure out how to Qload FS rounds
just a thought or .02
Last edited by EL17E 76; 02-09-2012 at 03:14 PM.
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