Motorcycles, tools, and garages! A little bit of everything mechanical and technical.

Wednesday, January 02, 2013

Not a clue.

Well, maybe a little bit... Just enough to get me in trouble.  Sure is fun to play with though!  Scrounged up a large-ish DC/AC welder with a high frequency arc stabilizer a couple of years ago that was "broken".  Got the welder part fixed easily enough and it worked great as a stick welder.  Then I discovered that it could be converted fairly easily to a scratch-start TIG welder.  Got that all figured out and it worked okay.  Little too hard for my students to use, but I'm still hoping to at least give them a chance to mess around with it.  I have always wanted to be able to weld thin metal- especially aluminum.  I don' think I'm a real great welder but I do okay for someone who has had no "formal" training.  Did some research and figured out how to wire up the Hi-freq box (good grief, there are wires going EVERYWHERE in the welding booth), and it works!  I don't have to scratch start it anymore, and switching over to AC I can theoretically now weld aluminum.


Still experimenting with it.  Only aluminum I had available was some 20 gauge 5052, and the welder only goes down to about 30 amps.  If I'm lucky, I can get about an inch of decent weld in before I dab the tungsten with the filler rod and bung it up.  Just keep trying...

In other news, the jigs for the airplanes work great.  About 5 minutes of set up, then let them dry overnight and they are done.  No more waiting 3 days for different parts to dry!

New year is off to a good start.  Spoke with my administrator today and it seems like I just might be able to finangle a 3D printer into my classroom this year.  If not, I'm definitely budgeting my money for that next year.

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