Stepper Motor Generator for Toy Steam Engines

[Th3mast3r69]

Wow that thing is loud!!!

[TheTeslaJet]

Which wires did you use? and how many came out of your stepper?

[IndianaRog]

Honestly I don't remember...been awhile. I see you have also commented on Mr. Occlusion videos. He's very knowledgeable on steppers and will likely give you the info you need. Wish I could be more helpful, but I've slept since then and just putzed around on mine til I got it to output to my satisfaction.

[IdahoViewing]

What sort of current will this device produce? Do you have a voltage to current curve posted anywhere?

[IndianaRog]

I have been able to get 300 mAmps out of the stepper and no load voltage = 22-24 volts DC. Sorry, no volt/current chart of any sort I am aware of. Bottom line, they make a fair amount of voltage, but not a lot of current.

[IdahoViewing]

That would make a great trickle charger for a 12 v wet or gel cell though!!!!

[silver760]

if you can get 50V out and want more current use a drop down reanformer,a low volt transofmer in reverse to lower to volt and up the amp.

[chrisangels999]

Nice one!

[girthchicken]

Great commentry Rog 8)

[MisterOcclusion]

Looks great! I saw your howto guide for this on your website and I am curious as to whether or not you considered using full bridge rectifiers rather than the single diodes. I can't speak to its practicality or not since I'm not an electronics geek, but with the bridge rectifiers you would not lose half your potential, as you do with the plain diodes, in converting AC to DC.

[steamyman]

very clever, well done!