This drawing will help explain my conventions for naming parts
of the linkage:
I have started a trac site for this project. Managing trac at Dreamhost is proving to be a challenge, so it is a little rough right now. I have not figured out a way to allow a generic guest user while having authenticated users who can modify the site. As a temporary solution, I may need to ask you to login as user:anon, with a blank password.
After changing optimizer to try to stay from known locked configurations, configuration B was investigated, with this orbit. Although the lock/sticking issues were reduced with respect to configuration A, which was used to build the initial prototype robot, it was still an issue.
The optimizer was changed again to give a weight to how far the CH link comes to the B-axis, and configuration D, with this orbit, was chosen for the next trial.
Configuration A was used to build a demonstration robot. The initial linkage print was motorized, and then used to build a sucessful demonstration remote-control robot. |