Algodoo

Nicely done, but doesn't work because scene.my.s and scene.my.l are not initialized in the file. I initialized them manually in the console and then the scene worked fine. If you unzip 63600_Hydraulic_Teleskop.phz and open scene.phn with a text reader, then you can see that they are missing. I think if you initialize scene.my.s and scene.my.l in the console before saving, then the variables will be saved with the file.

I did not find a way to save the init values of the variables with the file.
the best init values are: scene.my.l=0.14 and scene.my.s=0.001 (increase scene.my.s for faster movments)