Month: June 2014

What happens when a Robot has different size wheels?

This article is another spin-off of the Differential-drive robot calibration. If you remember the article at the end you found that wheels are most of the times of different sizes with differences of around 0.01% but that are big enough to affect movement over 1 meter. So… What happens when you move one meter straight …

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HOWTO Calibrate a differential robot: UMBMark Explained

This article is just a follow-up of drawing squares with leJOS where the problem of calibrating correctly your differential robot appeared. So, if you recall our squares drawing robot, we needed to travel around the four legs of a square turning 90 degrees on each corner so that we ended in the initial position using …

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