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Simple Bait Launchers
Posted: Tue May 22, 2012 12:01 pm
by airpress
Hi.
If made a few weeks ago 2 exactly aircannons.
Some specs:
- 30cm 2" steel pipe
- 1m 22mm copper barrel
- sanded with fine steelwool and directely varnished
- exhaust valve, a simple 1/2" ballvalve
- compressor fitting
- 16 bar manometer
Some pics:
1:
2:
Airpress
Posted: Tue May 22, 2012 12:09 pm
by POLAND_SPUD
heh not very advanced but still pretty cool
nice to see you back
Posted: Tue May 22, 2012 12:13 pm
by mattyzip77
Posted: Tue May 22, 2012 12:51 pm
by Brian the brain
Back to building boilie cannons I see...
Posted: Tue May 22, 2012 6:26 pm
by 8tonsemi
Awesome job. The metal looks great with that shine. It looks like it could shoot stuff a long way.
Posted: Sat May 26, 2012 12:57 pm
by airpress
Today i tested my pipes for my hybrid i'm making.
So far I gone so far with the (steam)pressure:
Posted: Sun May 27, 2012 7:17 am
by jackssmirkingrevenge
That's quite a jump from a ball valve pneumatic
More details on the hybrid build?
Posted: Sun May 27, 2012 7:31 am
by airpress
Indeed. But i made combustions and pneumatic piston Valved cannons before. But that was a few years ago when spudtech forum was still alive.
It will be a burst disk hybrid with 1 1/2" pipes.
More info in a couple of days in section hybrid cannons.
Posted: Sun May 27, 2012 8:24 am
by Gippeto
airpress wrote:Today i tested my pipes for my hybrid i'm making.
So far I gone so far with the (steam)pressure:
Not to sound like a total arse, but if you wanted to check the integrity of a pipe...steam is the absolute MOST dangerous way to do so.
Not only does the heat reduce the safe working pressure of the pipe, but high pressure steam is a VERY energetic medium when suddenly released to atmosphere.
Get yourself a grease gun, fill the pipes with oil and pressurize with the grease gun...with the air properly eliminated from the system, any failure will be very anticlamatic.
Posted: Mon May 28, 2012 2:46 pm
by airpress
Today i get it to 60 bars.
I think you don't understand my method.
I just fill the whole chamber with water.
On the union i connect a long 3/4" pipe also filled with water.
There is no are in the whole system.
Then i take a gas burner and i not minutes the meters go like crazy, 10,20,30,... bar. I think i reached 60bars in just 45seconds.
More info coming soon.
Posted: Tue May 29, 2012 3:01 am
by Crna Legija
yeah but if your next to it when it blows witch is more likely since its hot, the steam will make it explode worse then if it was just air and don't the boiling hot water/super headed steam that's gonna burn the feck out of you, if your close.
Posted: Tue May 29, 2012 3:39 am
by airpress
I my eyes, it is not steam, but just the water that is expanding.
Or i'm wrong? When i open the ball valve, its just a little bittle pressure water that escaped.
