I am working on a simple motor and I would love input or tips to increase the rpm on it. The motor is built by having a 1.5 v D battery connected to 2 bobby pins for and a coil of wire that one side is fully stripped and the other side is on the other side is only stripped on the bottom. Then i have a magnet under the coil to cause to rotate. I got it to run abbout 800 rpm but i would like it to excede 3000 rpm. If i increase/decrease the diameter of the coil will it increase? if i increase the number of coil will it increase? If i add a stronger magnet will it it cause it to increase? What will be a better replacement for the bobby pins?