Boom! The classic potato gun harnesses the combustion of flammable vapor. Show us your combustion spud gun and discuss fuels, ratios, safety, ignition systems, tools, and more.
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KRN
- Private 3
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Sun Jul 27, 2008 8:07 pm
clide wrote:Careful with that ignitor in the endcap. Although it makes the cannon look nice and clean, it also creates a prime opportunity for accidental firings since it is somewhat natural to set a gun down on the back end. Especially for someone who decides to troubleshoot the gun by looking down the barrel.
I am fully aware of that.
Thank you for the heads up though.
next time I wont have the igniter at the end cap, perhaps on the side.
I appreciate it
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mark.f
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Sun Jul 27, 2008 9:23 pm
Nice job. I like the way you used spigot fittings in the SCH-80. Mr. Plow used to do that with some of his cannons...
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rp181
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Sun Jul 27, 2008 9:28 pm
you only like making PVC cannons because of the pvc glue fumes
i like how the piezo was mounted.
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Deadeye
- Private 2
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Sun Jul 27, 2008 9:54 pm
How bout a safety?
Epoxy a 3/4" coupler over the top of it so you have to insert a finger to depress and it would protect against accidental discharge.
You might need to bevel out a area for it to seat for better bonding or bolt a plug at the end and the igniter thru that then glue the coupler over the plug - would end up perfect on size - the tip of the igniter would be just below the opening.
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jr
- Specialist
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Sun Jul 27, 2008 10:18 pm
Yeah and if the ignitor blows out of the cap it could break her finger! I have seen caps and ignitors blow from cannons...
My armadillo don't like me trousers
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frankrede
- Sergeant Major 2
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Sun Jul 27, 2008 11:49 pm
The cap has been completely filled with epoxy, in turn making it stronger than a normal cap.
Current project: Afghanistan deployment
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frankrede
- Sergeant Major 2
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Mon Jul 28, 2008 1:17 am
rp181 wrote:you only like making PVC cannons because of the pvc glue fumes
i like how the piezo was mounted.
What are you talking about?
Current project: Afghanistan deployment
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MrCrowley
- Moderator
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Mon Jul 28, 2008 2:40 am
Hmm...I think he's implying you like sniffing solvents to get high
@rp181,
Seriously, wtf?
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frankrede
- Sergeant Major 2
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Mon Jul 28, 2008 2:52 am
MrCrowley wrote:Hmm...I think he's implying you like sniffing solvents to get high
@rp181,
Seriously, wtf?
Makes no sense whatsoever.
Current project: Afghanistan deployment
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marpat
- Private 4
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Mon Jul 28, 2008 11:35 am
damage pics of the cannon using the nail polish bottles as ammo would be exceptionally cool
also if safety with the piezo in the endcap is a big concern it might be possible to obtain an oversized toggle switch shield like they have on detonators and on aircraft instrument panels
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frankrede
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Mon Jul 28, 2008 3:18 pm
marpat wrote:damage pics of the cannon using the nail polish bottles as ammo would be exceptionally cool
also if safety with the piezo in the endcap is a big concern it might be possible to obtain an oversized toggle switch shield like they have on detonators and on aircraft instrument panels
Are those rated to shield against pver 10,000 volts?
I think not;)
Current project: Afghanistan deployment
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rna_duelers
- Staff Sergeant 3
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- Location: G-land Australia
Tue Jul 29, 2008 7:00 am
What I have attained from this thread is,that there is indeed another female on the forum which is good because we need both sexes to support our fun and JSR has a Foot Fetish!
...The secret is out JSR...
