Search found 652 matches
- Fri May 23, 2008 2:14 am
- Forum: Combustion Cannons
- Topic: check valve for exhaust
- Replies: 17
- Views: 4961
Definitely feaseable in my opinion it's have to be a good size dia check valve for venting, and then a couple more maybe 1/4 electric solenoid valves for fueling. maybe used a 555 microcontroller to control timing for fueling firing and venting so that for each pull of the "trigger" it fires vents t...
- Thu May 22, 2008 2:04 am
- Forum: Combustion Cannons
- Topic: A few general questions, I am new at this.
- Replies: 10
- Views: 2328
I think you should explore this forum a little bit more and see if you can find some answers before posting. There are quite a few topics on this subject that can you can find by using the search feature. We also have a very comprehensive Wiki that will answer most of your questions. I'm not being a...
- Thu May 22, 2008 1:38 am
- Forum: Ammo & Parts
- Topic: Plaster of Paris
- Replies: 11
- Views: 3932
I think it would slide fairly well with it's cured consistency but i agree way too brittle, unless of course you added something else to the mix (ie kaolin or portland cement) and then bake the damn thing in an oven. heck try some different things and let us know how it works. I'd be interested to s...
- Wed May 21, 2008 3:08 pm
- Forum: Off-Topic Hobbies
- Topic: CO2 Jetpack
- Replies: 54
- Views: 11043
- Wed May 21, 2008 6:04 am
- Forum: Combustion Cannons
- Topic: hello, new here, have a question...........
- Replies: 15
- Views: 3254
- Wed May 21, 2008 2:18 am
- Forum: Off-Topic Hobbies
- Topic: CO2 Jetpack
- Replies: 54
- Views: 11043
I did a radio interview with a gentleman named Nino Amarena who is the president and CEO of Thunderbolt Aerosystems and he described the system they use somewhat in depth on my show. Follow the Gribnation link in my signature to the Thunderman part 1 episode on the show archive page to listen to him...
- Wed May 21, 2008 12:46 am
- Forum: Off-Topic Hobbies
- Topic: Well I got a boat and I need to put some booty meat on it
- Replies: 11
- Views: 3055
- Mon May 19, 2008 11:50 pm
- Forum: Off-Topic Hobbies
- Topic: Well I got a boat and I need to put some booty meat on it
- Replies: 11
- Views: 3055
my best advice would be to drill and bolt your plate to the bottom of the boat with a piece of inner tube rubber in between the plate and the hull. that way you wont have to worry about welding thin aluminum. i had a hole in the rear keel of my coleman plastic scanoe that had to be fixed in this man...
- Fri May 16, 2008 9:57 pm
- Forum: Off-Topic Hobbies
- Topic: Rubber Powered Rocket engine
- Replies: 9
- Views: 3072
I haven't built a full scale rocket yet, and full scale mean big enough for the thrust to be useful in propelling an object of some size whether it be a rocket or a car. So far we have used 1" dia plumbing pipe using parafin wax with a 1/4" hole down the middle with a little bit of gun powder mixed ...
- Fri May 16, 2008 8:34 pm
- Forum: Pneumatic Cannons
- Topic: refilling 5lb co2 tanks?
- Replies: 11
- Views: 2963
- Fri May 16, 2008 8:26 pm
- Forum: Off-Topic Hobbies
- Topic: Rubber Powered Rocket engine
- Replies: 9
- Views: 3072
Sometimes it is best to go through proper channels, that way when you prove it works they will be impressed by the fact that you were able to do it safely and prove them wrong rather than being pissed and dwelling on the fact that you went against their wishes. A couple buddies of mine and I have be...
- Fri May 16, 2008 8:18 pm
- Forum: Off-Topic Hobbies
- Topic: The DYI GO-kart Project: Rocket design
- Replies: 21
- Views: 4329
Ok so you're asking how to lighten the thing as a whole correct? Well, what are you making your pressure vessel out of?? I thought I saw you said concrete up above. why not just use a high pressure cylinder for your vessel. remove the stock valve and put a ball valve or something into it. heck i don...
- Thu May 15, 2008 2:56 am
- Forum: Off-Topic Hobbies
- Topic: From the desk of useless projects...
- Replies: 26
- Views: 5645
You'll find a good number of people prepared to tell you spudguns are "f ing stupid". Spudguns may be stupid to some people, but there is a certain amount of pride that comes with hitting a par 5 on the green in one shot from your GB cannon ;) I just got home from a day at the links with my GB Comb...
- Wed May 14, 2008 12:14 am
- Forum: Off-Topic Hobbies
- Topic: From the desk of useless projects...
- Replies: 26
- Views: 5645
- Sun May 11, 2008 10:22 pm
- Forum: Ammo & Parts
- Topic: How much do pool balls weigh?
- Replies: 7
- Views: 2082
google edit found this: English Pool Tables are supplied in 3 sizes, 6ft, 7ft and 8ft measured externally. For the best size to suit your pool room, click here to consult our handy snooker tables size and room measurement chart. English Pool Tables use 2” balls, usually 7 red and 7 yellow balls with...