Month: March 2013

Next Step: Motor Control!

Posted on March 17, 2013

The next step after choosing motors (like these) is to select a method of controlling them. I prefer to have something with PWM speed control and current feedback, so that’s going to narrow down my list a bit. PWM speed control is easy to do with an Arduino / Atmel chip, and you can do […]

Category: Rover Tagged , ,

Puttin’ Some Rubber on the Road

Posted on March 17, 2013

Ok, last time I mentioned the wheel diameter is 120mm… That’s actually the size of tire from the Dagu Wild Thumper, because the tires are BIG (for an R/C style tire), and relatively inexpensive. Which is great when the rover accidentally drives off something tall and breaks a plastic hub. Well, plastic for now; I’m […]

Category: Block Design, Rover Tagged ,

Racing Rover!

Posted on March 17, 2013

Ok, last time I talked about some options for off-road vehicle mobility, and a few of my faves from JPL. This time it’s all about designing an almost Sojourner-sized autonomous robot, about 640mm long. It’s well inside the size allowance for the WCRS race of 1 meter max in width, height, and length, and I can add a manipulator […]

Category: Block Design, Rover Tagged