Bedini RPX Sideband Generator



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Thread: Brushless DC Motor for High Torque Experiments

  1. #21
    Thanks Gary. That may be a good option. I completed the file for sample motor end/ bearing holders. This is what I will use on mine. It is for 3/4" X 1 5/8" X 7/16" bearings. The inner bolts are 6-32 X 3/4" and the outer holes will be for 1/8" threaded rod to connect both sides. There will be an inch of room on both sides of the stator for wire to stick out. Pictures are included here. You will need to print or have printed (2) bearing holders and (8) legs (4) for each side. My extruder stepper died during the 1st two leg print, but I was able to check compatibility with the stator. It works beautifully. I sent Tom w/ Teslagenx the files if anyone needs them printed.

    Last edited by DMANN; 07-08-2017 at 11:31 AM. Reason: Teslagenx

  2. #22
    20170809_154454.jpg20170805_055850.jpg This first one is wired for a monopole application and not a BLDC. The magnets on the rotor match the number of stator poles (12).

  3. #23
    The magnetic lock with the 12 magnets = the 12 stators was just too strong. I had the coils wound with 3 sets of 4 in series. It took shorting the coils with two 12V lawn batteries in series to even turn it. So I have decided to offset the number of magnets to stator poles. I am currently printing a 10 magnet rotor. I believe that will allow me to turn it with much less power. I will save the 12 magnet rotor for a generator add-on for later. My busy season with work has picked up so this project is going to be slow-go from here to the end of the year.

  4. #24
    These are a couple of resources for those that are interested for wiring and running a true BLDC motor.
    I did not know that rc had gotten so powerful until I did some research. Here is a powerful esc at a reasonable price. It auto senses so you can use halls or not.


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