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| gwoloshyn |
 Posted: 12/27/2007 19:50 PM Post subject: Latest combustion: 2008 Peacemaker |
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Staff Sergeant
Joined: 05 Jul 2007
Posts: 121
248.50 Spud Bux
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My recently completed cannon features on board metered propane injection, stun gun ignition, chamber fan, and an over/under setup.
Specs:
-Chamber is 4" diameter and 15" long
-Barrel is 1.5" x 60" long
-Over/under design
-12v intel CPU fan
-Modified stun gun ignition
-Separate control boxes for ignition and fan controls
-Innovative trigger design made from PVC, pressure switch and a spring
-Metered propane with regulator and quick disconnect safety feature
-Break barrel breech loading ability
The chamber ratio is about .8-1. As you can see in the beginning stages of design, I disregarded the correct chamber ratio and my chamber was wayyy to big so I had to shorten it substantially for optimum power. The chamber is actually 4" DWV sleeved with (3) 4" couplers.
I'm sure most have seen this break barrel design on other cannons ( I cannot take credit for this idea) but I implemented it on this cannon.
I haven't had the chance to test fire it because of the bad weather we've been having but once it gets warmer I'll be able to fine tune the propane and get everything dialed in. I might add a laser sight or something because this thing weighs a ton and it's hard to aim.
Thats about it.. here's the pictures of the cannon and design process.[/i]
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| Underside and lightened propane holder |
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| Sawed off low profile ball valve vent |
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| Inside the trigger is a strong spring. |
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Last edited by gwoloshyn on 12/27/2007 20:09 PM; edited 1 time in total |
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| jrrdw |
| Posted: 12/27/2007 20:01 PM Post subject: |
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Donating Moderator
Joined: 16 Nov 2005
Posts: 3151
4891.55 Spud Bux
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| Trouble ahead, lady in red! Nice build. What, no video? Come on man, your slacken.
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| gwoloshyn |
| Posted: 12/27/2007 20:08 PM Post subject: |
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Staff Sergeant
Joined: 05 Jul 2007
Posts: 121
248.50 Spud Bux
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I don't have a video camera!! In my post I said I'm not going to test it out until the weather gets better 
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| carter |
| Posted: 12/27/2007 20:21 PM Post subject: |
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Corporal
Joined: 05 Mar 2007
Posts: 74
123.74 Spud Bux
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| looks sweet but dvw chamber? your sure thats safe. otherwise it's a nice gun
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| gwoloshyn |
| Posted: 12/27/2007 20:47 PM Post subject: |
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Staff Sergeant
Joined: 05 Jul 2007
Posts: 121
248.50 Spud Bux
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| carter wrote: | | looks sweet but dvw chamber? your sure thats safe. otherwise it's a nice gun |
It's sleeved with pressure rated couplers.
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| cwazy1 |
| Posted: 12/27/2007 21:49 PM Post subject: |
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Captain
Joined: 10 Sep 2007
Posts: 308
23.00 Spud Bux
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how many times must we bring up this dwv vs pvc?? dwv is safe on combustions and safe on pneumatics within reason. ...not to ruin your intentions, sleeving it in 3 couplers, will not help a lot, if it fails, it will still fail and rip on the middle of where your couplers join, it might not rip into a million pieces but it will still rip if it wants.
other than that, nice cannon, i like the triggering settup.
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| DYI |
| Posted: 12/27/2007 22:07 PM Post subject: |
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Rear Brigadier
Joined: 07 Jul 2007
Posts: 2216
1325.97 Spud Bux
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DWV vs. PVC?
I'm confused 
As far as I know, DWV is simply a sanitation rating. Isn't this just DWV PVC pipe and fittings? Which, BTW, are probably OK on a combustion.
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| th3p0p0 |
| Posted: 12/27/2007 22:07 PM Post subject: |
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Sergeant Major
Joined: 31 Oct 2006
Posts: 186
257.16 Spud Bux
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| Novacastrian |
| Posted: 12/27/2007 22:16 PM Post subject: |
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Bloody Aussie
Joined: 11 Aug 2007
Posts: 1622
116.11 Spud Bux
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Very nice work, i would have named it the "Piece" Maker though.
When you say that you shortened the chamber for optimum power, how long was it before? I am of the understanding that a bigger chamber will give MORE power, more noise and less efficiency.
Last edited by Novacastrian on 01/17/2008 14:47 PM; edited 1 time in total |
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| nightshot |
| Posted: 12/27/2007 22:18 PM Post subject: |
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Private
Joined: 17 Dec 2007
Posts: 22
52.82 Spud Bux
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Congratulations... Nice gun and the disign is awesome ;D
Is that ball valve on the chamber removable ?
good job 
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| cwazy1 |
| Posted: 12/27/2007 22:24 PM Post subject: |
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Captain
Joined: 10 Sep 2007
Posts: 308
23.00 Spud Bux
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| sorry, i meant dwv vs. pressure rated.
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| gwoloshyn |
| Posted: 12/27/2007 22:43 PM Post subject: |
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Staff Sergeant
Joined: 05 Jul 2007
Posts: 121
248.50 Spud Bux
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| Novacastrian wrote: | Very nice work, i would have named it the "Piece" Maker though.
When you say that you shortened the barrel for optimum power, how long was it before? I am of the understanding that a bigger chamber will give MORE power, more noise and less efficiency. |
Here's what the chamber was going to be in the early stage of building it. I didn't take into consideration that I need a proper C:B ratio.
| nightshot wrote: | Congratulations... Nice gun and the disign is awesome ;D
Is that ball valve on the chamber removable ?
good job |
Thanks, ball valve is removable yes.
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| jackssmirkingrevenge |
| Posted: 12/28/2007 1:02 AM Post subject: |
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space monkey
Joined: 15 Mar 2007
Posts: 6523
9946.55 Spud Bux
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| love the perforated propane holder
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| TwitchTheAussie |
| Posted: 12/28/2007 7:43 AM Post subject: |
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Brigadier General
Joined: 06 Feb 2007
Posts: 929
993.70 Spud Bux
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DWV is completely safe, trust me on this. And man that is a nice cannon. Break barreled advanced good combo 
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| markfh11q |
| Posted: 12/28/2007 10:14 AM Post subject: |
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Magic Dust Man
Joined: 06 May 2006
Posts: 1387
273.60 Spud Bux
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I wouldn't say "completely safe", but for a combustion it's fine. I have quite a few DWV combustions lying around at the moment, and anybody who uses a cleanout plug on a combustion has used "DWV", and needs to come down off their high horse. 
I like the whole break-barrel design. Very ingenuitive.
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