My First Window Motor Replication

[dmann]

Hey. This is my first Window Motor Replication. I wanted to make it simple. So I hollowed a 2 X 4 and used that as my base. It is about 4.5"s in length. The rotor is made with six 1" X 2" X.5" neo magnets on it. They were taken off of another project. The shaft is .5" aluminum and the bearings are basic steel bearings I got for $5 each at VXB. I cleaned the heavy grease out of them. The wire is trifilar wound with 650 turns of 30ga x2 and 28ga x1. The battery is a Craftsman 19.2V NiCad that generally charges conventionally to 22.5 Volts.

I am running it on a basic SSG circuit for know, but plan on putting together a half bipolar Bedini/Cole circuit to see what that can do. I have estimated the shaft to be turning between 450-500 rpm's. The amp draw is at 90ma.

[dmann]

I just wanted to give an update. I stepped up to the bedini/cole half bipolar circuit using two of the windings for power and one winding for trigger. This bumped the rpm's up from around 450 to around 600.

Next I used a reed switch to trigger the circuit. I've got small neo's at every 60 degrees to activate the reed switch. I am using all three windings for power. Wish I had a tach meter. I'm estimating that it is turning somewhere in the neighborhood of 1500 rpm's.

I don't know what sort of spike's it is producing. The battery seems to be draining slowly. I have the bridge rectifier connected permanently. I may try switching that with a reed to see if that makes any difference.

After I play with this for a while it will be on the full circuit and then maybe a generator on the front end.

One more thing here that I may be missing, that could make a huge difference, is adding in a earth ground to the system. I read somewhere that people often miss this step in replicating this circuit. Does anyone have any input on this?

dmann

[dmann]

https://www.youtube.com/watch?v=Dc43...47_b6QP5Zv9OtA

Here it is in action.

[dmann]

https://www.youtube.com/watch?v=L9IsJHXoc2U

This is my 4th version of the window motor. It is switched with a commutator. I am able to get 1000+ HV if I put pressure on the contacts. It has very good torque. I am sure you could get some good practical use out of the mechanical side of this motor.

dmann

[dmann]

https://www.youtube.com/watch?v=UM6ZnYWQMb0

This is with the 1000+ HV commutator spikes