This is what we rolled out the door at 9pm on Monday night:
As you can see, there's still some finish-up work left for Thursday at the first regional (i.e. decals and attaching the bumpers!), but this year the design has come together quite nicely and we anticipate a successful season.
A few features:
Drivetrain
- Powered by 4 small-CIMs via AndyMark 2-speed transmission
- Uses six 3.7" custom wheels to achieve a lower profile
- Designed with monocoque construction principles in mind to reduce size, avoid cantilevering, and protect the drivetrain – the two main beams are 2x3" box tubing with holes milled out
- Uses 25 chain between wheels and 35 chain from transmission to center axle, with horizontal axle adjustment for tensioning
Elevator *
- 3 stages, forks can reach a height of 7 feet in under 3 seconds
- Employs continuous cabling to keep the center of gravity low
- Uses Spectra cable for flexibility and light weight
- Custom bearing setup does not require use of 80/20 extrusion
- Powered by 2 Fisher-Price motors with AM planetary and Toughbox
Manipulator
- Forklift-style prongs to support ball from below
- Pneumatically-actuated hoop constructed from fiberglass poles to capture the ball
- The nearer half of the ball rests within the confines of the robot when grabbed, ensuring stability and ease of turning while the robot is carrying the ball
General
- Frame is TIG/MIG welded aluminum, weighs approx. 30 lbs. without elevator stages
- Low center of gravity due to placement of just about everything in the bottom of the robot
- Total weight:
119.2 119.6 lbs (those decals will push us over...
)
- Total height: 60" (no joke... hopefully it will shrink in the crate)
I should also credit our electronics, pneumatics, programming, and OI construction crews for their excellent work. Although harder to appreciate either in this picture or from a strategic standpoint, their jobs are also of utmost importance.
* In regards to the elevator, we would like to thank Team 254 for allowing us to borrow elements from their
excellent design of last year. Your work is always an inspiration.
So now all that remains is to name the robot... any suggestions?
- Nick