pic: Team 148 - 2011 - Raptor

[JVN]

Originally Posted by s_forbes

Killer mechanism, the extending linkage on the top is brilliant! The large gear/arm member on the bottom looks like a part that could cause a lot of headaches... did you have any strange issues to overcome with meshing a gear to the stacked aluminum plates?

I also love the way you implemented a telescoping mechanism with the rollers in the tube, I'm gonna have to play with that idea in the future. Lots of clever bits wrapped into your bot this year.

Fantastic robot as usual, and once again I'm super jealous of your fabrication abilities.

The low gearbox driving a high shoulder joint via a linkage (we call this the "hip joint") was inspired by the 67-2007 robot which had this VERY cool feature. We added our own twist by making it a 4-bar linkage. Now it is a double 4-bar (we've been making double 4-bar jokes ALL season).

The practice robot shoulder joint has been running up and down since Day 18 of the build. It "just works." No worries at all with the plate gear experiment. Lots of laser cut plate gears on Raptor...

Yes, we are proud of some of the more subtle features inside Raptor. I know there are some that most people totally ignore that will be impressive to a mechanical designer with a good eye...

-John