3d scanning3d scanning is very interesting for many applications. unfortunately, an accurate high resolution 3d scanner costs thousands of dollars. i've built many different 3d scanners with varying success using only cheap off-the-shelf components.
3d scan of a 5 cent swiss coin
spur gearsi've written several utilities to design spur gears for 3d printing and laser cutting. these programs can be used to generate geometries of spur gear pairs, planetary gears and noncircular gears.
switzerland - european union gear
robot locomotionin one of my latest projects i designed a synchro drive that enables a drawing robot to move in any direction from its current location using only two stepper motors. unlike more complex systems it cannot rotate about its vertical axis.
synchro robot drive
swiss + reliefpaint custom relief maps of switzerland with the android app "swiss + relief". choose custom colors for altitude, slope and exposition.
walensee region by swiss + relief
watchtowerswatchtowers offer great views over the surrounding area. but the architecture of the towers is often just as spectacular.
chaumont tower, switzerland