It is a dutch diagram, so the spelling is correct
On topic:
Could we make a rule that the cannon has to be able to shoot? with adding a vid or something you could prove it.
Impromtu Ghetto Contest (12 Entries!)
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Labtecpower
- Sergeant 3
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*Kathode
It is a dutch diagram, so the spelling is correct
On topic:
Could we make a rule that the cannon has to be able to shoot? with adding a vid or something you could prove it.
It is a dutch diagram, so the spelling is correct
On topic:
Could we make a rule that the cannon has to be able to shoot? with adding a vid or something you could prove it.
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jakethebeast
- Corporal 5
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- Joined: Sat Jul 03, 2010 4:20 pm
- Location: Jakes cave
that was actually in my mind
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mark.f
- Sergeant Major 4
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Sounds like a good idea. Didn't want to add too many rules, but that should definitely be one of them. I'll edit my post with a video sometime later on tonight.Labtecpower wrote:Could we make a rule that the cannon has to be able to shoot? with adding a vid or something you could prove it.
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Technician1002
- Captain
- Posts: 5189
- Joined: Sat Apr 04, 2009 11:10 am
Presenting the Biohazard.
My trash collection is way too vast so to narrow it down and limit the selection, I chose a theme. Medical supplies only. All disposable as biohazard waste.
Presenting my Ghetto contest build and my first combustion.
It features metered fuel, clear chamber, stainless steel electrodes with insulated adjustment handles, small size, pistol grip, snub nose barrel, and all materials obtained free.
The fuel port on the breech is the tip off the syringe barrel.
Pardon me for not posting a video of this on my Youtube Channel. Due to the build materials, I'd rather not post it on Youtube.
2nd fire;
My trash collection is way too vast so to narrow it down and limit the selection, I chose a theme. Medical supplies only. All disposable as biohazard waste.
Presenting my Ghetto contest build and my first combustion.
It features metered fuel, clear chamber, stainless steel electrodes with insulated adjustment handles, small size, pistol grip, snub nose barrel, and all materials obtained free.
The fuel port on the breech is the tip off the syringe barrel.
Pardon me for not posting a video of this on my Youtube Channel. Due to the build materials, I'd rather not post it on Youtube.
2nd fire;
- Attachments
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- Finished and ready for the fuel and an old lighter for the ignition.
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- To be true to form for a Ghetto build the construction is performed with a scalpel and not power tools..
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- Hazardous materials include an expired date catheter, a specimen sample jar, hypodermic needles, single use syringes, and the contaminated left over roll of tape.
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- Close up of the needles used. They are blunt and large size for refilling inkjet cartridges.
- P4260130a.JPG (19.8 KiB) Viewed 3693 times
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- Barrel installation detail before the tape was added.
Last edited by Technician1002 on Wed May 04, 2011 3:12 am, edited 4 times in total.
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mark.f
- Sergeant Major 4
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Neat! Too bad you don't have any magnetic stirrers... chamber fan! 
As to the video, just a still shot of it firing would be good. No hurry, though, still have 6 days.
On another note, do you think we should use a judging scale points style like the official Spudfiles' contests? Or should we just do a poll? I think a poll would be best, but you guys have put forth a good amount of effort in getting this thing off the ground so far, so I'd like your opinions.
As to the video, just a still shot of it firing would be good. No hurry, though, still have 6 days.
On another note, do you think we should use a judging scale points style like the official Spudfiles' contests? Or should we just do a poll? I think a poll would be best, but you guys have put forth a good amount of effort in getting this thing off the ground so far, so I'd like your opinions.
So here is mine, with a working muzzle brake ! (made from 12 separate parts :O)
Made from two drink bottles, electrical tape and cardboard. (oh also two needles, and a few strands of ATA ribbon)
Projectile is rolled up toilet paper.
As you will see, when I first tested the canon, it became obvious that some sort of recoil mitigating system would be required
[youtube][/youtube]
So it seems centre ignition isn't the best solution with light projectiles.
Also the flame front acceleration through the reduction is impressive.
So err, I'll call it "Muzzle Breaks"
(made from 12 separate parts :O)Made from two drink bottles, electrical tape and cardboard. (oh also two needles, and a few strands of ATA ribbon)
Projectile is rolled up toilet paper.
As you will see, when I first tested the canon, it became obvious that some sort of recoil mitigating system would be required
[youtube][/youtube]
So it seems centre ignition isn't the best solution with light projectiles.
Also the flame front acceleration through the reduction is impressive.
So err, I'll call it "Muzzle Breaks"
Last edited by al-xg on Tue Apr 26, 2011 3:14 pm, edited 2 times in total.
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Labtecpower
- Sergeant 3
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Here is my video!
[youtube][/youtube]
No fancy music here.
For fueling, skip to 21 seconds. The 3 ml of butane is not included
For judgement, I would like the points style. In that way people think more before making their judgement.
[youtube][/youtube]
No fancy music here.
For fueling, skip to 21 seconds. The 3 ml of butane is not included
For judgement, I would like the points style. In that way people think more before making their judgement.
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jakethebeast
- Corporal 5
- Posts: 945
- Joined: Sat Jul 03, 2010 4:20 pm
- Location: Jakes cave
ill post a video tomorrow, i dont wanna shoot this inside anymore
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Labtecpower
- Sergeant 3
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No paper bag combustions
Luckily my gun is within the rules.
I had to stop shooting because the other people in my house got angry
Hydrogen/oxygen makes quite a lot of noise
Luckily my gun is within the rules.
I had to stop shooting because the other people in my house got angry
Hydrogen/oxygen makes quite a lot of noise
Last edited by Labtecpower on Tue Sep 13, 2011 12:48 pm, edited 1 time in total.
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jakethebeast
- Corporal 5
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- Location: Jakes cave
haha i see i see
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mark.f
- Sergeant Major 4
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Edited the rules to state that the cannon should hold together.jrrdw wrote:One thing I'd like to add, to be considered a cannon it has to shoot more then once.
No more rules!
Nice videos, you two. Mine's coming in a bit...
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mark.f
- Sergeant Major 4
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Bump for video confirmation.
[youtube][/youtube]
The bottle mounting screws are not required with light projectiles (like this paper wad), but without them when firing things like golfballs or at some point spuds, you are in for a bad day. 8)
No fancy music here, either. Damn MOV format makes it easier for me to edit videos with a simple dubber since WMM doesn't like MOV files, and about the extent of what I can do as far as "effects" are slow motion shots, and I have to edit the audio separate if I want to include slo-mo audio...
Yeah, it's a pain.
[youtube][/youtube]
The bottle mounting screws are not required with light projectiles (like this paper wad), but without them when firing things like golfballs or at some point spuds, you are in for a bad day. 8)
No fancy music here, either. Damn MOV format makes it easier for me to edit videos with a simple dubber since WMM doesn't like MOV files, and about the extent of what I can do as far as "effects" are slow motion shots, and I have to edit the audio separate if I want to include slo-mo audio...
Yeah, it's a pain.
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clemsonguy1125
- Sergeant 5
- Posts: 1485
- Joined: Tue Jul 21, 2009 4:00 pm
- Location: East Coast
My ghetto pneumatic. The chamber is made from two balloons, one inside of another. To pressurize it, you inflate it through the barrel like a normal ballon. You then twist off the balloons load a projectile and let go of the balloons. Has about a 40 foot range
- Attachments
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