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Fast small scale cars?

All non-spudgun related discussion goes here such as projects, theories, serious questions, etc. All "off-topic" posts (aka useless posting, determined by moderators) will be removed.
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Unread postAuthor: Rambo » Sat May 20, 2006 7:38 am

You may try a high presure bottle rocket propoltion.
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Unread postAuthor: D-Roc » Sat May 20, 2006 9:00 am

jrrdw wrote:Well for your fan idea, Tower Hobbies carries ducted fans for electric fly jets, but the problem there is there pretty big. 3" to probly 5" on average, there are different sizes, depending on motor size and fan size. SpudStuff is rite about the hand winding, it is a mastered art! I rewound a Chevy altanator for kicks, I'LL NEVER DO THAT AGAIN!!! And that is a much bigger easier scale, i think my little copper wire was touching something it wasn't saposed to and up in smoke it went as soon as i started the engine.Any how you can also try ebay for the motor, there's a lot of hobby stuff all the time for sale.

Well I'm pretty skilled in engineering. Once I learn how to do it, I'm good at it.
If someone can post a guide or pictures of the internals....

Ok. Here's what I know so far...
-Magnets on both sides of armature
-Armature is an electromagnet
-Axle connected to armature
-Coiled wires around armature
-Brushed transfer power from batteries to motor.

Ok...Can I use neodynium magnets? And where can I find an electromagnet? What's the power mainly based on (batteries, magnets, electromagnet...)?
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Unread postAuthor: jrrdw » Sat May 20, 2006 6:46 pm

When you rap copper wire around iron ore, and energize it, that is your electromagnet. The sphear shaped magnets circleing the electromagnet are positioned in a way so the poles create a circlelure force field around the armiture/electromagnet, and when you power it up, it makes it spin. Thats the size of my understanding of it. As for the materails/kind of magnets, i'm sure the stronger the magnets, the stronger the force field, the faster the spin!
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