[amsat-bb] Re: Rotator Positioning questions

2013-08-12 Thread Ing. Pavel Milanes Costa
I Greg, et all. The rotor has a mechanical switch that cut the power to the motor when it's in contact with the switch: So stopped motor is ZERO Current... About 450 and beyond... You are right, but last days I was thinking/tweaking an algorithm that I think now will do the math.. I will

[amsat-bb] Re: Rotator Positioning questions

2013-08-10 Thread Greg D
I forget... Do these kinds of motors change their current draw significantly when they stall? If they don't, a current probe may not be a reliable stop indicator. Also, regarding the challenge with 450 degree rotation... There's no requirement that you actually use all 450 degrees. Just stick