Search found 426 matches

by metalmeltr
Wed Nov 02, 2011 9:51 pm
Forum: General How-To & Discussion
Topic: Theoretical Combustion Cannon Power Improvement
Replies: 25
Views: 1834

This in a way goes back to earlier discussions of screen mesh in chamber similar to coal lanterns. Maybe it will help.
by metalmeltr
Wed Nov 02, 2011 9:37 pm
Forum: General How-To & Discussion
Topic: Theoretical Combustion Cannon Power Improvement
Replies: 25
Views: 1834

I saw this as well. I intend to throw some random bs into my combustion and see what happens.
by metalmeltr
Fri Jul 15, 2011 12:02 am
Forum: Off-Topic Hobbies
Topic: Solar charger idea
Replies: 9
Views: 1348

This year at summer camp the Ipad was the "cool new toy". It has yet to be diminished of this status. We have plenty of outdoor activities within the troop. One of the main attractions being my advanced combustion cannon. This is just meant to maintain batteries for emergencies and to power devices ...
by metalmeltr
Thu Jul 14, 2011 11:38 pm
Forum: Off-Topic Hobbies
Topic: Solar charger idea
Replies: 9
Views: 1348

A true boy scout does not need a cell phone. :lol: We are all adicted to our scoutmaster's iPad! lol If it runs out of batteries who knows what will happen! At 15 my electronics experience is limited to the electronics merit badge, tearing things apart and internet research so any guidance on the c...
by metalmeltr
Thu Jul 14, 2011 11:19 pm
Forum: Off-Topic Hobbies
Topic: Solar charger idea
Replies: 9
Views: 1348

I knew that the panel can't provide much current. Are you sugesting that the panels charge the batteries and then the batteries charge devices?

Potential devices to charge
Cell phones
Ipods
Ipad
by metalmeltr
Thu Jul 14, 2011 11:02 pm
Forum: Off-Topic Hobbies
Topic: Solar charger idea
Replies: 9
Views: 1348

Solar charger idea

I recently had an idea to build a solar charger for USB and car charged devices for use when camping. I am a Boy Scout and on one of our recent trips had some dead cell phones and no way to charge them. The solar panel would be made up of cells from outdoor solar lights. The voltage from the panels ...
by metalmeltr
Tue Jul 05, 2011 11:38 pm
Forum: Ammo & Parts
Topic: Golfballs???
Replies: 6
Views: 667

Golfballs???

I just built a pnuematic golfbal gun (showcase thread coming soon) and i am looking for a cheap source of massive quantites of golfballs, pregferably junky ones that no one wants. I've found a couple deals on ebay, but they are all virgin balls, id prefer crappy ones.
by metalmeltr
Fri Jun 10, 2011 2:04 pm
Forum: Off-Topic Hobbies
Topic: Blow torch compatibility
Replies: 10
Views: 5113

Can you post a picture of the torch? It would help in sorting out the issue.
by metalmeltr
Fri Jun 10, 2011 12:09 am
Forum: Off-Topic Hobbies
Topic: LG TV iPod trick
Replies: 0
Views: 3963

LG TV iPod trick

If you want to connect your Ipod to your TV's USB port follow these simple steps 1. Press the enter(OK) on the remote and the TV at the same time...hold for about 5 seconds 2. Password - 0000 3. Go to tool option 3 4. Change Jpeg to 1 5. Change Divx to SD or HD(Mine was SD) 6. Exit and try it out. 7...
by metalmeltr
Wed Jun 08, 2011 11:08 am
Forum: Combustion Cannons
Topic: Automatic potato gun found on youtube
Replies: 15
Views: 2162

That's nothing!
Image From what I can determine that tank is 250 Gallons, If i'm wrong its 120 gallons.
by metalmeltr
Wed Jun 08, 2011 10:47 am
Forum: Combustion Cannons
Topic: Automatic potato gun found on youtube
Replies: 15
Views: 2162

Haha I like the idea of it but don't have the patience to deal with designing it. The design could be made simpler by using PC fans and propane metering.
by metalmeltr
Wed Jun 08, 2011 10:43 am
Forum: General How-To & Discussion
Topic: Wads
Replies: 4
Views: 555

They will fit in 2" Scedule 40 PVC, I would imagine that they would also fit in 2" copper if you have that. The whole caulk tube also makes excellent ammo because when empty they are slightly front heavy so they fly without tumbling. The wind does have quite the effect on them though.
by metalmeltr
Wed Jun 08, 2011 10:12 am
Forum: Pneumatic Cannons
Topic: Fridge pipes!
Replies: 9
Views: 643

As long as you can get a single flare to form in the steel pipe it should work fine. Compression fitting should also work, contrary to a previous comment compression fitting can handle braking system pressures and would be fine at 500psi. If niether of those options work then you can try to find som...
by metalmeltr
Tue Jun 07, 2011 12:15 pm
Forum: General How-To & Discussion
Topic: QDV Pumpkin Cannon Attention Technician1002!
Replies: 4
Views: 923

I think I have watch that video before. I'll have to watch it again. I was guessin og piston length on the basis that the pistons in your QDV cannons that I have seen are longer than their diameter from what I can tell.