Search found 192 matches
- Mon Aug 24, 2009 8:14 am
- Forum: Pneumatic Cannons
- Topic: Who first modified the sprinkler valve?
- Replies: 8
- Views: 2181
Who first modified the sprinkler valve?
Does anybody know who came up with the idea to modify a sprinkler valve for a launcher? It is incredible! What a difference in performance over a ball valve for just an extra few bucks. I just got off my ass this past weekend and modified one of the one inch valves I picked up from Ebay and had a bl...
- Thu Aug 20, 2009 6:26 am
- Forum: Pneumatic Cannons
- Topic: What a Monster!!
- Replies: 9
- Views: 2728
- Wed Aug 19, 2009 5:14 pm
- Forum: Pneumatic Cannons
- Topic: What a Monster!!
- Replies: 9
- Views: 2728
What a Monster!!
I just got the 2 inch sprinkler valve from Ebay and it is huge. I was going to use it as a pilot valve for my next launcher; a diaphragm but I changed my mind. I thought of using it as a main valve but it looks like it would be a slow opener. Does anyone know how to determine the opening time?
- Wed Aug 19, 2009 5:07 pm
- Forum: Pneumatic Cannons
- Topic: Sprinkler Valve leaking
- Replies: 5
- Views: 1856
- Sat Aug 15, 2009 8:09 pm
- Forum: Off-Topic Hobbies
- Topic: Model Rocketry
- Replies: 8
- Views: 2383
I was a rocketeer when I was younger. There was only a few of us. We started with rockets from a company called Century then Estes. After a while we were not permitted to launch them due to the housing density. We were told to have our parents involved and to take it to the country but there were to...
- Fri Aug 14, 2009 4:13 pm
- Forum: Pneumatic Cannons
- Topic: how do air-line filters work??
- Replies: 20
- Views: 6790
I never used a refrigeration compressor to pump air so I don't know what will happen. When air is compressed water vapor will be present and that is not good for berings. It may be better to just collect it this way to separate it from the air and then blow it off and just top off the oil occasional...
- Fri Aug 14, 2009 12:22 pm
- Forum: Pneumatic Cannons
- Topic: how do air-line filters work??
- Replies: 20
- Views: 6790
- Fri Aug 14, 2009 9:41 am
- Forum: Pneumatic Cannons
- Topic: how do air-line filters work??
- Replies: 20
- Views: 6790
If you what you an oil separator that can handle high pressure then you want one designed for air conditioning. It is a cylinder that the discharge line from the compressor is connected to(usually from the top) then exits(usually the top as well) on its way to the condenser coil. In the cylinder the...
- Wed Aug 12, 2009 6:08 pm
- Forum: General How-To & Discussion
- Topic: I hate Ebay
- Replies: 12
- Views: 3994
- Wed Aug 12, 2009 6:11 am
- Forum: General How-To & Discussion
- Topic: I hate Ebay
- Replies: 12
- Views: 3994
I hate Ebay
I was bidding on a two inch sprinkler valve when my max bid was over by $1.50. I increased a little during the last few seconds but someone had set a higher max bid. This is when I got competitive and used the "One Click Bid" feature and won. Unfortunately I was over my comfortable max by $3. Total ...
- Wed Aug 12, 2009 5:56 am
- Forum: Combustion Cannons
- Topic: Does it count as a firearm?
- Replies: 40
- Views: 8929
- Sat Aug 08, 2009 8:42 am
- Forum: Pneumatic Cannons
- Topic: need some help with Coaxial vent with sprinkler valve
- Replies: 2
- Views: 1091
- Fri Aug 07, 2009 3:52 pm
- Forum: Pneumatic Cannons
- Topic: large valve housing
- Replies: 26
- Views: 4974
- Tue Aug 04, 2009 4:56 pm
- Forum: General How-To & Discussion
- Topic: Oxy/acetylene vortex cannon.
- Replies: 5
- Views: 3124
I emailed the show to see if there were any plans or calculations available for someone to study. I have yet to receive anything from them and I don't think I ever will. Judging from the two liter prototype they first built it seems to be a combustion chamber launcher with a cone for a barrel. I did...
- Mon Aug 03, 2009 12:12 pm
- Forum: Pneumatic Cannons
- Topic: piston wont close
- Replies: 3
- Views: 1341
Could the piston be getting pinched on the bumper end? I recently changed my pilot valve to a bigger diameter and noticed that I had to bump the launcher's barrel on the ground to "unstick" the piston. When I took it apart to give it a look see I noticed pieces of bumper and a small piece of my pist...