Category Archives: Uncategorized

HC-SR04 rosserial range publisher

I tried to re-implement my hc-sr04 rosserial setup which i described here and couldn’t find the source of this attempt.  I therefore redid it and now sharing the results.

The simple wiring setup:

wiringThe output on rviz:

rviz_outputand new the source on github.

You can start the publisher with:

3D Printing from pain to fun

After a long period of ups and downs and a relationship which best gets described as “complicated” with my Mendel Prusa i2 the results are really getting better and therefore also bigger. It also starts ti feel like fun to print stuff instead of beeing tensed up all the time.

So today I printed a fillament holder roll, which when assembled consists of two bearings and a plastic bearing holder (8*3*4cm). I also got in touch with blender to edit the STL files other than the non linux Sketchup, which lately tends to produce broken CAD models which cause slic3r to crash.

See the results below:


Six legs two Motors

Hexbug 477-2423 – Scarab XL

available on amazon for 25€ 🙂

Random thoughs in Lego