Category Archives: Mendel Build

New blog!

I have started a new blog over at which focuses on all things related to electric motors, motor control and robotics. So come join me in a journey to try and understand the answers to such questions as: What limits … Continue reading

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Stepper motors or a BLDC servo motors? Which is better and when to use them.

Which is better, a stepper motor or a brushless DC (BLDC) servo motor like these from Teknic (Clearpath)? The short answer: It depends on your application. If you only need open-loop position control (no shaft position feedback), are on a … Continue reading

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Bootstrapping a pen plotter to make a 3d printer

Back in 2010 I developed an intense interested in understanding and eventually building a 3D printer. This interest took me down the path of reading all the material available at the time and purchasing a RAMPS (V1.2) which I used to control … Continue reading

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MIT: 3-D printing with variable densities

By variable densities this video is referring to the density of the infill, not the density of the material extruded. At least that was my take on it. Hasn’t the DIY 3D printing scene been doing this for quite some time now with the use … Continue reading

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