so after all the ABS glue fumes had gone away, this is what i had 
pretty simple design, a monkey could probly build it, and best of all it cost me 7$ to build
New combustion cannon
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super spuder
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well i have not posted any of my guns on here for a while because no one liked me using ABS for pneumatics, so i was bored today and i had found a bunch of crap laying around and decided to build a combustion gun so after all the ABS glue fumes had gone away, this is what i had
pretty simple design, a monkey could probly build it, and best of all it cost me 7$ to build
so after all the ABS glue fumes had gone away, this is what i had pretty simple design, a monkey could probly build it, and best of all it cost me 7$ to build
trying to decide on a new project, probably something small.
Damage pics woudl be nice 
. And I dont think its that people dont like ABS...its that they dont like non-pressurerated ABS. Also your reducer is DWV... 
. And I dont think its that people dont like ABS...its that they dont like non-pressurerated ABS. Also your reducer is DWV...
Last edited by HaiThar on Sun Sep 23, 2007 8:37 pm, edited 1 time in total.
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super spuder
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well i have to find something to shoot out of it first. but when i do i will get some up here
thats my super special ignition system !
thats my super special ignition system !
trying to decide on a new project, probably something small.
lighter?super spuder wrote:well i have to find something to shoot out of it first. but when i do i will get some up here
thats my super special ignition system !
We didnt like your pneumatic because we already get bad press, and some kid losing his hearing to a "dangerous weapon" doesnt help.
anyway, nice cannon. you should make more combustions
searching for a modern day savior from another place,inclined toward charity,everyone's begging for an answer,without regard to validity,the searching never ends,it goes on and on for eternity
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super spuder
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well what ever, i am confident in my " SOLID" walled ABS. I am planing on making more combustions, i hate only being able to shoot where my air compressor is
EDIT: yea, its a BBQ ignitor with the flame still working, and i can use just the spark to, i wanted to see if the flame would give better performance than just a spark
EDIT: yea, its a BBQ ignitor with the flame still working, and i can use just the spark to, i wanted to see if the flame would give better performance than just a spark
trying to decide on a new project, probably something small.
Also, I question why you would use ABS over PVC in a pneumatic gun? The only reason I could think of for using ABS would be because it is more chemically resistant, but you dont use chemicals in a pneumatic gun...
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super spuder
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well if i answer that is is going to start an argument... this is the combustion show case 
trying to decide on a new project, probably something small.
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super spuder
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oh crap... so it is
trying to decide on a new project, probably something small.
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super spuder
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well if you must know, i used ABS because i can not get presure rated PVC around here, the only way i can get it is to drive 1 hour north, and i am not going to wast my time driving down there to get some stuff, then realize that i need other things
PS: could a mod move this to combustion show case pleas
PS: could a mod move this to combustion show case pleas
trying to decide on a new project, probably something small.
ABS has better chemical and UV resistance, higher impact resistance, and a much cleaner mode of failure than PVC. But yeah, don't use DWV plastic pipe (be it ABS or PVC) in a pneumatic cannon.
Nice simple cannon, looks like fun to shoot. The chamber seems a bit oversized though.
@Haithar: the entire gun is DWV, not only the reducer. As long as it's solid wall, it's fine for a combustion. Cell core may also be OK, but it certainly isn't recommended.
Nice simple cannon, looks like fun to shoot. The chamber seems a bit oversized though.
@Haithar: the entire gun is DWV, not only the reducer. As long as it's solid wall, it's fine for a combustion. Cell core may also be OK, but it certainly isn't recommended.
Spudfiles' resident expert on all things that sail through the air at improbable speeds, trailing an incandescent wake of ionized air, dissociated polymers and metal oxides.
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super spuder
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i was just out shooting it, it is pretty loud
Last edited by super spuder on Mon Sep 24, 2007 6:44 pm, edited 1 time in total.
trying to decide on a new project, probably something small.
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super spuder
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hmm, could do that, think i will...
trying to decide on a new project, probably something small.