Search found 724 matches
- Mon Aug 04, 2008 1:13 am
- Forum: Tools and Construction
- Topic: Arc/Tig to plasma cutter.
- Replies: 4
- Views: 6123
Re: Arc/Tig to plasma cutter.
Yeah, you can air-arc with a constant current DC welder no problem. You need a big power supply though, at least 250 amps just to run the little 1/8" rods. I've even seen it done with a air-arc rod in a stick welding stinger, with an air hose just stuck on the back end of rod. Air-arc is still used ...
- Sun Aug 03, 2008 1:23 pm
- Forum: Tools and Construction
- Topic: Arc/Tig to plasma cutter.
- Replies: 4
- Views: 6123
Re: Arc/Tig to plasma cutter.
No, it's not possible. The output voltages are way different. Your welder operates around 20-30 volts, my plasma cutter has an output of around 200 volts and 30 amps. Also, the plasma torch and it's consumables are much more complicated than you think. Even if the above problems didn't exist, you wo...
- Mon Apr 14, 2008 5:00 am
- Forum: Tools and Construction
- Topic: Tube bender from scratch. plenty of pics.
- Replies: 3
- Views: 5525
Tube bender from scratch. plenty of pics.
I thought this project was worth sharing. I found some plans for a JD2 type tube bender and decided to go at it. The bender is easy, and the parts are being cut for me on the laser at work. I was originally just going to buy the dies I need, at $250 each. My dad convinced me to try casting them. I'v...
- Mon Mar 31, 2008 10:16 am
- Forum: Off topic forum
- Topic: Rodenator Follies
- Replies: 1
- Views: 3117
- Tue Mar 04, 2008 11:50 pm
- Forum: Rocket forum
- Topic: Someone has to try this
- Replies: 34
- Views: 36128
Cap both ends but the top is a screw off, fill with the oil and resin and add top cap. Top cap has a valve for adding the Oxygen. Add enough pressure to get it to diffuse in but not too much to explode the pvc pipe. Unscrew top cap and you have a pre-cast in liner rocket fuel grain. Hey, go for it....
- Tue Mar 04, 2008 1:19 am
- Forum: Rocket forum
- Topic: Someone has to try this
- Replies: 34
- Views: 36128
Neet, but probably a bad idea for an amatuer. Pressurized oxygen and oil are a bad combination. Most folks with oxy/fuel torches know to keep oil, or any other contaminants away from the oxygen valve or the regulator. Oil in an oxygen regulator can result in the violent destruction of the regulator ...
- Fri Jan 11, 2008 1:35 am
- Forum: Off topic forum
- Topic: Some knives I've forged
- Replies: 9
- Views: 11318
Yeah, poo on cable damascus. I was thinking more along the lines of 1095 and 15n20, 100 layers or so. I'm gonna have to build another forge first though. I made a couple of mistakes building mine, and am having trouble getting a good even heat. It's ok for forging, but not welding. Yeah Jim, I'm a p...
- Sat Jan 05, 2008 12:49 am
- Forum: Off topic forum
- Topic: Some knives I've forged
- Replies: 9
- Views: 11318
Wow Eric, those are really nice! I am thinking about building a treadle hammer too. I'm sure I've got the materials laying around, I just need to get off my rear and do it. I wish I had more time to play at the anvil. Life gets in the way too much. I need to get some forge welding under my belt. I'm...
- Wed Nov 21, 2007 11:15 pm
- Forum: Off topic forum
- Topic: Some knives I've forged
- Replies: 9
- Views: 11318
Some knives I've forged
I've taken up blacksmithing as a hobby. It is great fun, almost as much as pulsejets. Lots of fire and glowing steel. :) Here are a few of the knives I've made. Two are railroad spikes, the last used to be a leaf spring. The coloration is from the tempering, I decided not to polish it off. Jusr thou...
- Wed Nov 21, 2007 11:04 pm
- Forum: Off topic forum
- Topic: I caught this fish and it was this big!
- Replies: 30
- Views: 30403
- Sat Nov 03, 2007 1:24 am
- Forum: Off topic forum
- Topic: BIG aircraft
- Replies: 2
- Views: 4018
- Thu Nov 01, 2007 1:08 am
- Forum: Off topic forum
- Topic: Metal/spring problem?!
- Replies: 3
- Views: 5126
- Sun Oct 21, 2007 1:39 am
- Forum: Jet Vehicles, All Types
- Topic: Kart & possible heat problems.
- Replies: 6
- Views: 9140
- Tue Oct 16, 2007 6:40 am
- Forum: Jet Vehicles, All Types
- Topic: Exploding Kayaks
- Replies: 11
- Views: 12835
- Mon Oct 15, 2007 7:47 pm
- Forum: Jet Vehicles, All Types
- Topic: Exploding Kayaks
- Replies: 11
- Views: 12835