For both my automatic curtains as well as my robot arm joint I ended up using GT2 belts and pulleys. But although printing GT2 pulleys is possible, the 3d printed pulleys tend to skip some teeth quite easily when they are used in high torque applications. Just as an experiment I though to give HTD 5M belts a try.
To protect our house against our tiny burglar, I’ve 3D designed and 3D printed a simple burglary prevention system. Disclaimer: it only works for tiny burglars. In stead of blogging about it, I created a two and a half minute video …