Hi Joe, I'm using geared motors (http://www.seefrid.de/images/dcgm43t42.pdf) that can easily be controlled by a PIC running PWM. Let me know and I can send you the schematic that I'm using to run those motors.
BR, -- /\/\arc > -----Original Message----- > From: [email protected] [mailto:[email protected]] On > Behalf Of Joseph Armbruster > Sent: zondag 18 oktober 2009 15:53 > To: [email protected] > Subject: [amsat-bb] homemade arrow rotator motors > > All, > > I am working on designing a rotator that the arrow antenna can snap > into. I am aiming for this platform to be portable, so that it could > be packed up and taken to different events. The base of the system > will be a small circular rotating platform, that will provide a full > 360 degree of freedom. The 'arm' that will hold the antenna itself, > will provide elevation and roll control. I have seen a couple of > random videos online of people that have made rotators but I haven't > seen any that have the entire antenna mounted... or a system that > provides for a flexible amount of movement. I am interested in > talking to anyone that has hacked at something like this, in order to > discuss lessons learned. In addition, i'd like to find out which > motors you chose and why. The arrow antenna with the di-plexer weighs > roughly 2lbs. Right now, I am looking at two different companies that > provide stepper motors, namely: > > http://www.kelinginc.net > http://www.linengineering.com > > Joe > _______________________________________________ > Sent via [email protected]. Opinions expressed are those of the > author. > Not an AMSAT-NA member? Join now to support the amateur satellite > program! > Subscription settings: http://amsat.org/mailman/listinfo/amsat-bb _______________________________________________ Sent via [email protected]. Opinions expressed are those of the author. Not an AMSAT-NA member? Join now to support the amateur satellite program! Subscription settings: http://amsat.org/mailman/listinfo/amsat-bb
