From DEW Robotics
Jump to: navigation, search
Climbing hooks
Climber Gearbox Winch
DEWBOT VII utilizes a 3-hook climber system allowing the robot to climb up to the TRANSVERSAL RUNG of the HANGER during end game. The Center hook arm (the Climbing Hook Arm) extends and articulates between vertical and 20° forward of vertical. The Climbing Hook Arm is modeled on a 2-stage Thrifty Bot Telescoping Tube kit. Constant force springs provide the extension force for the arm, while a Gearbox Winch controls the extension and retraction. A pair of pneumatic cylinders control the Climbing Arm angle articulation.

A pair of Static Hook Posts flank the Climbing Hook Arm. These Posts do not articulate, but the Static Hooks which terminate them do rotate and are spring loaded to allow the Climbing Hook to bring each RUNG to a point below the Static Hooks, then extend to transfer the RUNG from the Climbing Hook to the Static Hooks.

The Climber Gearbox employs four (4) NEO motors and 20:1 reduction designed to allow the robot to climb vertically at a speed of about 12 inches/s and deploy at about 20 inches/s. A dog-based lock allows the Gearbox to be locked into position, both to prevent inadvertent Climber Arm extension and back-driving during climbing.

I'm thinking that many robots (Including DEWBOT XVII) reaching the TRANSVERSAL RUNG will slam into the Drivers' Station window. Hard. This will certainly test the nerves of the drive team in DRIVERS STATION 1. I'm not sure whether this is a game fault or a feature.

Climbing Sequence


We prototyped the climbing process with a 3-D printed robot model and cardboard & fiberglass rod HANGER.

Climb at Hatboro-Horsham