Good news - we're open for limited services in Wembley. Ujima House is now actively under refurbishment and we'd love your help in making the space the best it can be.
During this interim period donations and continued membership are greatly appreciated while we transition to our new space.
- A general guide to DC motor maintenance
- Maintenance and Troubleshooting of electric motors -- note section on Brush and Commutator Care.
- File:DC Motor Troubleshooting.pdf
- File:2010-01-18 Schunk carbon-brush Case studies DC motors.pdf Case studies of carbon brush wear. Pictures of big motors, but seems to be the same principle.
- This forum thread explains one potential cause of sparking and things to avoid when trying to fix it.
- Turning down a commutator on a lathe