Thursday, May 18, 2006

An Alternative Alternator

Chris was kind enough to donate another alternator to the cause. This one's is much better shape but doesn't work. It's a Mitsubishi and that's all I can tell from it. I hooked a volt meter up to it and got nothing whereas with the Bosch I could generate 5µA just by spinning it with my hand.

In any case, I should pull it apart and figure out what's wrong with it. It could be a simple fix, and I'd like to see what's inside...

Argh! Stupid screw is stripped.

Wednesday, May 17, 2006

Free Alternator

Another piece of the puzzle has arrived! Kenneth has been kinda enough to donate an old (and hopefully working) alternator to the cause.

It's a Bosch 90 RS which used to produce 90amps at 14V. I seriously doubt it'll do that anymore. The bearings seems a little crusty.

The next step is to figure out which terminal is which and make sure it still generates electricity. I've also started bugging Timmy about the rest of the circuit after the alternator. Let's hope those 8 years of University he took pay off!

Engine Anatomy

The engine is a 148cc Briggs & Stratton vertical shaft lawnmower engine. In it's prime, it generated 3.5hp at 3600rpm. It's definitely not in it's prime...

Time to get cleaning!

Tuesday, May 16, 2006

Build Your Own Generator For FREE

Here I go with another crazy project. My wife has recently got me using Freecycle. This site is a place for people to get rid of stuff they don't use for free.

So, it all started when KitchenerFreeCycler posted that he had a busted lawnmower with a working engine. Awesome! I picked up the lawnmower and made short work of further destroying the deck. I won't post any pictures of it's last moments. They weren't pretty.

Then I thought, what can I build with a vertical shaft engine? A GENERATOR! Better yet, perhaps I can build a generator for completed free...