/diy/ - Do It Yourself

>>2883127
My ol’ Dremel is biting the dust too. 1/3 of the motor is dead spots. I prefer their consumables when they’re on sale, but I’m probably going to replace it with a cheap one because they’re all bound to burn up anyway and even the $20 versions have a motor with the same power and the threaded nose cone part that will accept all my Dremel(tm) accessories.

Ol’ Dremel that’s gotta be 20+ years old is finally giving up on me. Sounds like she’s running at half power and cutting in and out at lower speeds. Sometimes I flip the power on, it won’t spin, but if I turn the shaft by hand a little, it starts up.

Multimeter on the brushes, getting like 25 ohms on most spots, which I assume is normal, and then dead spots occasionally and have to turn it another 10deg to get 25 ohms. Brushes also spark like crazy and it gets hot really fast even with no load.

Dead spots on the motor winding?

I had the thing apart and it looks clean, although there’s magnetic dust on the outer ring of the motor that’s a bitch to clean off.