I'm doing a project on Theo Jansen's Mechanism, where I have to modify the mechanism. What is the most efficient way to design these mechanisms? Is there any good software where I can just draw the links and input crank and test out the mechanism? I have used GeoGebra, but it doesn't simulate the mechanism physically, and while using Creo I found that the pin joints often get stuck - like they suddenly fold up and do not move. Also, creating the links one by one takes quite a lot of time.
3D CAD software has a hard time with lots of pin connections, because without a range limitation the solution is indeterminate. I have not used Creo, but if you can limit the range of motion with interference or other, the model may work.
Working Model 2D is nice for designing mechanisms. I used it as a student; not sure how much it costs commercially.