yes, at those low OHMs you will need at least Poly magnets. and metal crown gear. and tie the back of the gear plate down to the chassis with a piece of wire. you might also graduate to "wet com" springs instead of motor brushes.
Very cool Dave! I am going to have some questions when I have more time to go through the thread here. Winding is one thing that I have not done, but I have started a collection of armatures for blanks when I do. May I ask where you are getting your supplies? I see adaptengineering.com on the wire spool. How about the comm plates? Thanks.
Jeff. This was some wire I got off e bay several years ago. It is sold as magnet wire. Adaptengineering has and e bay store. For our purposes we need some pretty small gauges in the 30 - 40 range. The comm plates were taken off the same arm I pulled the old wire off. The comm was a good used oldie. I have a lot of old burned out pancake and inline arms. If you need some let me know. It is usually the windings that are bad on these so they can be brought back to life. One thing I forgot to mention is that when I put the new Crown gear in I shimmed it .010 and it held for the next couple of tests.
Al. I wish I could find a metal crown gear. If you know where to get some let me know. I have never tried holding the rear of the top plate down with a wire, I will try that.
I did put some poly magnets in the chassis and it ran much better hitting a .53 @ 28 MPH. So far it has not exploded!!! I plan on really getting crazy with an inline, winding a .4-.5 ohm arm and seeing how it runs before it blows up.
Last Edit: Feb 29, 2020 10:28:34 GMT -7 by dave632