Posted by Gary Bonner.
Other on team #433, MINT, from Mount Saint Joseph Academy and Pew Foundation.
Posted on 5/10/2000 8:08 PM MST
One of our speed controllers went bad today. We’re going to a team sponsored competition this weekend and don’t have the time or money to get a replacement. We made rookie mistake #1 (and 2,3,4…), and had to go to town with the saw at a regional competition to get down to 130lbs. We did what we could to protect things from the metal shavings, but I’m afraid some shavings may have gotten into the controller and finally did it in.
We now have two speed controllers that work in only one direction. My question is, could we use the two ‘half’ speed controllers to make a ‘whole’ speed controller. What I’m thinking about doing is wiring the speed controllers’ outputs in series with the motor, removing the jumpers, and modifying the control program such that each controller outputs only in its good direction and is otherwise set at 127. Does this sound feasible?