| What would be the best name other than P-36c Devastator? |
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| The best piston gun built ever! jk. |
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| Sticky_Tape |
 Posted: 03/02/2008 12:07 PM Post subject: P-36c devastator |
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Brigadier General
Joined: 31 Jan 2008
Posts: 929
1165.85 Spud Bux
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This is my copper rifle. I'm not going to go into detail on this post but if you have any questions you can post them here.
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Last edited by Sticky_Tape on 03/02/2008 18:36 PM; edited 2 times in total |
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| brogdenlaxmiddie |
| Posted: 03/02/2008 12:13 PM Post subject: |
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Colonel
Joined: 22 Jul 2007
Posts: 530
4.98 Spud Bux
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I love the simplicity 
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| bigbob12345 |
| Posted: 03/02/2008 12:14 PM Post subject: |
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Experienced n00b
Joined: 01 Dec 2007
Posts: 1515
370.57 Spud Bux
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great gun
some specs would be nice.
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| Sticky_Tape |
| Posted: 03/02/2008 12:14 PM Post subject: |
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Brigadier General
Joined: 31 Jan 2008
Posts: 929
1165.85 Spud Bux
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Thank you, I like to keep the cost down  .
Edit: Ask what specs you want and I'll give you them  .
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| MaxuS the 2nd |
| Posted: 03/02/2008 13:39 PM Post subject: |
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Colonel
Joined: 19 Jan 2008
Posts: 653
827.94 Spud Bux
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| What did you make your piston and sealing face from?
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| Sticky_Tape |
| Posted: 03/02/2008 13:54 PM Post subject: |
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Brigadier General
Joined: 31 Jan 2008
Posts: 929
1165.85 Spud Bux
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The body of the piston is made from 3/4 inch poplar dowel and the sealing face is 2 layers of neoprene supper glued on there is exactly 1 layer of duct tape around the body of the piston and circle of foam on the back of the piston that is supper glued to the back of the piston with 7 layers of duct tape to protect the foam from rippage.
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| bluerussetboy |
| Posted: 03/02/2008 13:55 PM Post subject: |
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1st Lieutenant
Joined: 02 Nov 2007
Posts: 269
554.77 Spud Bux
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how far does your piston travel?
what is your pilot volume?
what type of valve are you using to pilot it?
and how does it work with the schrader valve?
why didn't you use epoxy for your piston?
what psi are you using?
and how far does it shoot?
what is your ammo?
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| Sticky_Tape |
| Posted: 03/02/2008 14:17 PM Post subject: |
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Brigadier General
Joined: 31 Jan 2008
Posts: 929
1165.85 Spud Bux
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how far does your piston travel? : About 1 inch.
what is your pilot volume? :Unknown but small.
what type of valve are you using to pilot it?:1/2 inch mini ball-valve.
and how does it work with the schrader valve? :The shrader doesn't have the needle thing in it that makes it a check valve.
why didn't you use epoxy for your piston? :Wood was availible cheap and it was light while epoxy is a little pricey and heavier.
what psi are you using? :As high as my pump will go {160 psi max}.
and how far does it shoot? : Haven't done range shooting but I have big hopes for it to go about 500 feet.
what is your ammo?: Darts.
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| bluerussetboy |
| Posted: 03/02/2008 14:50 PM Post subject: |
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1st Lieutenant
Joined: 02 Nov 2007
Posts: 269
554.77 Spud Bux
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| 1" of piston travel seems quite large. if you went for the d/4 'rule' it should only have 3/16" travel, that extra 13/16" is extra pilot volume you have to vent. probably doesn't matter with the ball valve, but if you were to try a blowgun it might not work. nice effort any ways.
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| Sparkie |
| Posted: 03/02/2008 16:02 PM Post subject: |
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Private First Class
Joined: 26 Dec 2007
Posts: 25
74.56 Spud Bux
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Nice gun. how accurate is it?
What size is your barrel?
What length is the barrel?
Also what are your darts made of?
I have made a copper shooter with a 10.5mm inside diameter barrel. It is a big pain to try and find any kind of ammo for it. I did find some 10mm glass beads but it is about as accurate as throwing the damn beads myself  Too much play in the barrel and it throws them out in all directions.
I am looking at making some darts at the moment but I am looking for different ideas.
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| Sticky_Tape |
| Posted: 03/02/2008 17:22 PM Post subject: |
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Brigadier General
Joined: 31 Jan 2008
Posts: 929
1165.85 Spud Bux
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Nice gun. how accurate is it? Haven't done any feild shooting yet but I'll get back to you.
What size is your barrel? 1/2 inch pipe.
What length is the barrel? 3 feet.
Also what are your darts made of? nails ans earplugs they fit perfectly in 1/2 inch barrels.
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| Sticky_Tape |
| Posted: 03/02/2008 17:26 PM Post subject: |
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Brigadier General
Joined: 31 Jan 2008
Posts: 929
1165.85 Spud Bux
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| bluerussetboy wrote: | | 1" of piston travel seems quite large. if you went for the d/4 'rule' it should only have 3/16" travel, that extra 13/16" is extra pilot volume you have to vent. probably doesn't matter with the ball valve, but if you were to try a blowgun it might not work. nice effort any ways. |
3/16" seems like the barrel wouldn't be open too much and why would people fuss about putting padding on the back of the piston doesn't seem like it would be able to accelerate too fast.
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| jackssmirkingrevenge |
| Posted: 03/02/2008 23:39 PM Post subject: |
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space monkey
Joined: 15 Mar 2007
Posts: 7050
11306.91 Spud Bux
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| spudchucker wrote: | | how far does your piston travel? : About 1 inch. |
Far too much...
| Quote: | | what is your pilot volume? :Unknown but small. |
looks massive to me, if I were you I'd have the ball valve fitted before the bend.
Otherwise, looks great - how about some damage pics?
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| Sticky_Tape |
| Posted: 03/03/2008 13:08 PM Post subject: |
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Brigadier General
Joined: 31 Jan 2008
Posts: 929
1165.85 Spud Bux
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| I'll see if I can get some.
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| Sticky_Tape |
| Posted: 03/03/2008 14:16 PM Post subject: |
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Brigadier General
Joined: 31 Jan 2008
Posts: 929
1165.85 Spud Bux
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Here you are, this is a dart that I shot at my shed door.
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This is a dart that I made out of
wire coat hanger, an earplug, super glue, and the core of some cord. |
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| This is the close up of the back of the dart. |
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223.95 KB |
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| The dart stuck in the door and bent. |
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| This is the dart after fired. |
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