I thought this might be a good time to post my project. I built this dragline many years ago and it needs some work now so I guess this is a good time. It originally was powered by a computer power supply that a friend gave me and told me which wires to use to get the voltages I needed. After adding some components to help with the electrical noise from the motors it worked good for several years but now the P.S. will not turn on. It will be replaced with a linear P.S. for the hoist and swing. The swing motor is also not working and never has worked like I wanted it to so it will also be replaced.
I made the mechanical joy-sticks using old R/C car throttle resistors as a speed controller. Here is the drag control-
They are crude but they work.