laser-cut on soldernerd

RaspberryPi Robot

Mon, 18 Sep 2017 00:00:00 +0000

It’s been almost two years since I did (or at least started) this project but I never sat down to document it. That’s what I want to do today. As the title says it’s about a little robot based on a RaspberryPi. Like many of its kind it is driven by a pair of stepper motors each driving a wheel directly attached to the respective motor axis. At the back there is another smaller, pivotable wheel to keep the robot in balance.

Ultrasonic Anemometer Part 30: Downsized Hardware

Sun, 05 Feb 2017 00:00:00 +0000

In my last post of this series I’ve looked at different transducers and finally decided on a entirely waterproof 14mm model. The much lower signal level from those kind of transducers makes it necessary to reduce the distance between the transducers in order to still receive a reasonable signal amplitude. So I took my previous lasercut design and reduced it in size so that the distance between the transducers is only 120mm. I went to the local FabLab and and lasered two copies of the downsized design.

Ultrasonic Anemometer Part 17: Lasercut Mechanical Design

Wed, 06 Apr 2016 00:00:00 +0000

In my last two posts I have gone through my new anemometer circuit both in theory and practice. Click here for an overview over my ultrasonic anemometer project.