Building a propeller clock looks like fun. I have access to some 10,000 rpm compaq server hard drives and would like to use them for my propeller motor. Trouble is I don't know how to trick the motor into running for me. Anybody care to help me with some information.
Also, correct if I'm wrong, hard drives are magnetic storage devices, but the disks, when taken out of the hard drive, are not attracted to a magnet and drill chip from drilling holes aren't magnetic either. My son tells me that they can't be erased with a magnet either. Anybody know the explanations for this or what the disks are made of?
Thanks,
Kinarfi