Truing a Comm of an RC Brushed Motor

Рет қаралды 111

13 күн бұрын

Things did not go well for me in this video but I won't be set back... I worked & worked to get this finished and a part 2 is coming in the future (need to get a power supply).
This gave me the opportunity to brush off the lathe and use it.
I had plans to run this motor in the DT-02 speed challenge that Peter over at
@cw-01creations46
is sponsoring... IF I do this speed run... It won't be in the brushed motor category, I WILL RUN BRUSHLESS..
If you don't know about this challenge, go see Peter's channel, the rules are in video format and open to all... Good Luck to Everyone!!!!
@cw-01creations46

Пікірлер: 10

@RCBirds 12 күн бұрын

Awesome and ver useful informations. Thanks for showing Bob.

@UncleBobsRC 11 күн бұрын

Thanks Dirk.... Lots more to this coming later....

@MarkBryanRC 12 күн бұрын

Hiya Bob! Great stuff dude, you got there in the end. Very well explained and some good advice thrown in along the way. That motor sure spins well after the truing, I could do with one like that for my speed car! All the best Brother! 😎👊👍

@UncleBobsRC 12 күн бұрын

Thanks Mark. In part 2 you'll see the ad for these motors and what they claim the rpm is/was (you never get what they claim anyway).. I'm getting closer but still so far off. Over the years, the magnets lose magnetism (gauss), springs on the brushes make the brushes sink into the comm ever so slightly and springs get weak... All that ads up to a slower motor (this one is over 30 years old). Even if you buy a new vintage motor still in its packaging, it will not have the performance it would have had when bought new within a few years of when it was on market. A magnet zapper would really help with this but I don't have one...

@AddamsPlayground 12 күн бұрын

Good stuff! Sorry the motor lathe wanted to fight you the whole way LOL! 30k is a great starting point for a speed run motor!!

@UncleBobsRC 12 күн бұрын

thanks Addam, In part 2 of this, the advertisement for the Triad Motors show an rpm of 50,000 (you never get what they show) for this 9 turn motor, I'm getting closer to that but old magnets are not helping. I wish I had a magnet zapper...

@jspeedrc 12 күн бұрын

✌🏽👌🏽

@UncleBobsRC 12 күн бұрын

Thanks man!!!!

@coygtrc 12 күн бұрын

Hi, nice vid. Your RPM, was it with or without load ? My 9x4 Team Orion at 7.2v was around 45k (51k with a bit of timing, which was too much anyway as you need an airfield strip at one point 😅). Good luck with the speed runs 😊

@UncleBobsRC 12 күн бұрын

Thanks for the view & comment... All test are done with no load.. Keep in mind, this motor is over 30 years old & only a double wind (triple winds and more are more likely to have more/higher rpm). Over the years, magnets get weak, these motors use old tech magnets (4.0 wet magnets) unlike motors that use 5.0 wet magnets that are stronger from 20 to 25 years ago and newer. with all that said, no brush motor has the rpm of a good brushless motor, most Castle Creations brushless motors max out at 100,000 rpm but will never see that, like the one I have in my DT-02 now....