I am building a Kinetic art piece that has a rotating disc that ideally could increase from about 10rpm to 20rpm over a span of about 30 seconds then decrease at the same rate and continue that cycling until switched off. Only a few ounces of torque will be required to drive the disc. RPM and time accuracy is not required. As I know very little to nothing about circuits and motor controls should I be looking at a stepper motor and controller or something to increase/decrease voltage over time to a dc motor/reduction geared set up? Not trying to be vague about anything I just do not know the proper questions to ask. Any suggestions would be appreciated.
Thanks
Mark
Thanks
Mark