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clam_dude
stranger in astrange land
Registered: 09/10/03
Posts: 1,717
Loc: twilight zone
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homemade air rifle
#15580538 - 12/27/11 09:28 PM (12 years, 3 months ago) |
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So I have built this thing over the past couple years, which is best described as an air rifle. It uses a bike pump as the source of air. The air is pumped into an air chamber, which is sealed off with a ball valve. The valve is connected to the trigger mechanism, which is a little difficult to explain. Once released, the air travels through a tube and into the barrel. The projectile is a nail with a cone on the back, which keeps the projectile flying straight, as well as creating a seal inside the barrel. Does this make any sense? I don't have any pictures right now, but if you guys are interested, let me know and I'll post some.
Anyway, this thing is awesome. I have done all sorts of tests with different weight nails, distances, etc. I have calculated the speed of the projectiles to about 500 fps for the weight that I have set as my standard (6 grams or so). That is a 3' nail with a big flat head. Lighter objects can go 600 fps, but are not quite as accurate. This can shoot about 100 yards with a 3 or 4 foot drop! I'm sure if I aimed up at a 45 degree angle, those things would go 400 yards or more. I have also hit a beer bottle from 70 yards. That was an amazing feeling of accomplishment, knowing that I made something myself that could smash a beer bottle from 70 yards with energy from my own body.
I have seen similar homemade guns on youtube, including some using bike pumps. However, I don't think any of them are as powerful as mine. I have never shot a real gun, but boy is it fun to shoot something that basically has no drop over 50 yards (maybe 5 inches). I know you all want pics, so if ya'll show any interest, I'll post some.
-------------------- "I would like to thank god for making me an atheist" - Ricky Gervais
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Fungi01
John Plischke
Registered: 06/29/08
Posts: 1,212
Loc: Western Pennsylvania
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Re: homemade air rifle [Re: clam_dude]
#15599235 - 12/31/11 11:14 PM (12 years, 2 months ago) |
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sounds cool
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QuestionableGuy
Respect the Fungi
Registered: 05/29/11
Posts: 216
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Re: homemade air rifle [Re: Fungi01]
#15621634 - 01/05/12 06:24 PM (12 years, 2 months ago) |
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I would love to see some pics of this!
-------------------- A wise man once said... "It's not what happens to you, it's how you handle it."
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Kamek
Registered: 01/08/05
Posts: 2,923
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Video??
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CMOS
Whats next?
Registered: 01/08/12
Posts: 833
Last seen: 9 years, 10 months
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Re: homemade air rifle [Re: clam_dude]
#15648352 - 01/11/12 01:36 AM (12 years, 2 months ago) |
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Yeah we need a picture or video! At least do a drawing of it.
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masterjaydawg
Stranger
Registered: 12/13/11
Posts: 469
Last seen: 11 years, 7 months
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Re: homemade air rifle [Re: CMOS]
#15648364 - 01/11/12 01:39 AM (12 years, 2 months ago) |
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Quote:
CMOS said: Yeah we need a picture or video! At least do a drawing of it.
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clam_dude
stranger in astrange land
Registered: 09/10/03
Posts: 1,717
Loc: twilight zone
Last seen: 6 years, 5 months
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Ok, here it is - You have to go down to the bottom and scroll apparently.
-------------------- "I would like to thank god for making me an atheist" - Ricky Gervais
Edited by clam_dude (01/12/12 12:04 AM)
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chais875
Stranger
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Re: homemade air rifle *DELETED* [Re: clam_dude]
#15653372 - 01/12/12 01:03 AM (12 years, 2 months ago) |
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Post deleted by chais875Reason for deletion: .
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clam_dude
stranger in astrange land
Registered: 09/10/03
Posts: 1,717
Loc: twilight zone
Last seen: 6 years, 5 months
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Re: homemade air rifle [Re: chais875]
#15653399 - 01/12/12 01:17 AM (12 years, 2 months ago) |
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It's purely functional.
-------------------- "I would like to thank god for making me an atheist" - Ricky Gervais
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orison
mcfluffysugarnuts
Registered: 01/19/09
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Re: homemade air rifle [Re: clam_dude]
#15653409 - 01/12/12 01:25 AM (12 years, 2 months ago) |
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that's a mean looking dart..
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Kizzle
Misanthrope
Registered: 08/30/11
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Re: homemade air rifle [Re: orison]
#15653586 - 01/12/12 02:52 AM (12 years, 2 months ago) |
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They used to have toy rockets based on the same principle.
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masterjaydawg
Stranger
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Re: homemade air rifle [Re: Kizzle]
#15653603 - 01/12/12 03:02 AM (12 years, 2 months ago) |
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THAT IS THE SHIT
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clam_dude
stranger in astrange land
Registered: 09/10/03
Posts: 1,717
Loc: twilight zone
Last seen: 6 years, 5 months
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Just to show how powerful this thing really is!
-------------------- "I would like to thank god for making me an atheist" - Ricky Gervais
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orison
mcfluffysugarnuts
Registered: 01/19/09
Posts: 5,473
Last seen: 12 hours, 31 minutes
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Re: homemade air rifle [Re: clam_dude]
#15656047 - 01/12/12 03:41 PM (12 years, 2 months ago) |
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truly is ..
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