Unbeknownst to most readers, I am the president of the Robotics Club at my High School. Every year we have one crazy, busy week to encourage people to join clubs. This is called Rush Week, and I’m proud of this year’s stand. We brought in our own table for every of the 5 days, and built 4 example robots in less than a week’s time. All in all it was successful, with about 75 signups. Here are some pictures from that week:
Out VEX Robot, built and programmed in 3 days autonomously moved around on the table, and also was driven around on the rotunda floor. A servo waved around a picture of a robot.
Here is an additional picture of our booth at Rush Week, complete with line follower (bottom), tri-fold, and decade-old trophies (and quite a few new ones as well). It’s probably the best Rush Week we’ve had in years.
The Velo Gripper wrist is nearly complete! Here is a separate update for just the Velo Gripper wrist.
We have also detached the right arm to make new drill holes to accommodate the MX64 and MX106 servos we’re putting in. The shoulder’s MX64 servo (not pictured) fit in with minimal effort, which is nice.
We were having troubles with the long cables that controlled the linear actuators and wheels; the signals would get too many collisions because the wires were too long. Frank had trouble converting the cables into smaller cables, DB9 connectors, and RS485 signals originally, but has since gotten them to work. Version 1 did not work, but Version 2 did. Both are pictured below.
We also have a new Ubuntu System 76 laptop (quadcore i7 with SSD) which will replace our current computer in the robot, and open up some space. We’re also moving to the Hydro ROS release and moveit! arm control sometime in the future. Here’s a picture of the laptop:
Here are three pictures of PR2Lite at Maker Faire 2013 that Melonee Wise took! This was when we had PR2Lite attempt to play chess with Michael Ferguson’s Maxwell.
Thanks Melonee! If you want to check out some of her other Maker Faire pictures, here’s the link!
We’ve made a large step in our integration with Willow Garage’s Velo2G Gripper. I completed my design on AutoDesk Inventor 2013 of the wrist, which controls the Velo Gripper and rotates. I also designed other parts which will complete our upgraded lower arm. I had to change holes and parts to accommodate for larger servos like the MX106 and MX64. Here is a screenshot of the final drawing.
We ordered the pieces to be cut from Mr. Plastics in San Leandro, got them about a week later, and started putting the parts together. The pieces fit in snugly, so glue is not entirely necessary. Here is a picture of the wrist attached to the Velo2G before glue.
Here is an online link to our August 2013 SERVO Magazine article about our updates to PR2Lite.
We have an earlier article about PRLite in the December 2011 article of SERVO Magazine. Here is a link to that as well.
August 2013 SERVO Article
December 2011 SERVO Article