Lipo’s are the way to go overall. But I switched because of the cost of the lipo charger, and the D battery holders add a rigid reinforcement to the chassis. Plus the servos don’t draw that much current, so the D cells provide a long enough run time for this application. But I might switch back later on, if run time becomes an issue.
A couple of my local robotics group members want to try a variation of magellan, where the robots run the bases of a baseball diamond. Personally I want to build a larger SRS Magellan robot. So this is my test robot to work the bugs out before actually building a large scale version from a wheelchair base. So this robot is destined for the baseball diamond game, which should be a good method for testing navigation strategies, for when I build the larger robot.
None, servo’s have a PPM circuit inside so all that needs to be done is mod them for continuous rotation. The 6 drive servos have this done. The steering ones don’t need continuous rotation.
Thanks, I really need to update these old posts. I have video of it navigating a city block that I never uploaded (big file size as the robot is slow).