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Originally Posted by Kevin Sevcik
Slim,
Teams will need a bit more info on the grabber before they consider if they can use it, I think. Specifically, how much does the grabber weigh? Roughly how does it work? What motors or pneumatics are used to actuate it?
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Kevin,
Thanks for the post =).
I didn't want to clutter the initial one with technical details.
How does it work: Three teeth hold each tetra under the top apex in the grabber. The teeth are mounted like "carabiners," which means tetras can be shoved into the gripper from the bottom, the teeth fold upwards during tetra load, then automatically fall and lock into place. This happens even while the robot is disabled - the "carabiner" action is totally mechanical. To release tetras, the teeth are pneumatically released downwards, allowing the tetra to fall through. There are two independant sets of teeth, allowing two tetras to be loaded, and independantly dropped. Hopefully I can post some movies to demo the loading and dropping process.
What motors or pneumatics are used to actuate it: The grabber is actuated by pneumatic cylinders, all of which are included and integrated into the top of the gripper. There is one cylinder for each set of teeth - one cylinder releases the bottom tetra, one cylinder releases the top tetra. In order to get it running, you will need to wire two solenoids, and run the four hoses into the top of the gripper. We can also supply our RC user code that controls the gripper cylinders.
Weight: Pending an exact measurement
-SlimBoJones...