Dimensions:38.5″ L x 30.5″ W x 37″ H
Weight:78 lbs
Concept:This year we built a simple, yet robust robot that allows us to stack totes from the feeder station and do a Coopertition stack.
  • One-speed WCP transmission with 4 CIMs at 11 ft/s
  • 4 Wheel West Coast Drive with 6″ wheels
  • 20-1 Gear Ratio Versa Planetary Gear Box with CIM
  • Custom Linear Elevator
  • Lexan Prong Vertical Pickup
  • Automatic pickup, stacking, and human feeder positions
  • Able to stack on Coopertition platform


2014 Robot

Dimensions:27″ W x 28.5″ L x 53.5″ H
Weight:118 lbs
Concept:Early in the season, we identified key features as being able to shoot, pick up, catch, and easily pass balls. We wanted each of these features to function independently in order to still have a competitive robot even if one of these features did not work properly, but still wanted to have a cohesive robot design that didn’t have redundant components. Thus, we chose to integrate all key components into a single assembly that can function even if one component fails. The end result is a simple robot that can reliable execute game tasks. We also wanted the option of having the different methods of scoring available to us in the event that one method works better than the others.
  • Two-speed shift-on-the-fly transmission: 7 and 16 feet per second
  • 6 wheel drive “West Coast Drive” base: Light, robust, and easy to maintain
  • Software-assisted operation: Automated “self-catch” macro, preset wrist angles for fast reliable actuation
  • “Hot goal” detection and scoring in autonomous mode
  • Linear plunger to shoot the ball up to 18 feet from the goal
  • Fast and reliable off-the-ground intake
  • Full-size catcher to receive balls thrown by other robots
  • Easily pass and receive balls to and from other robots


2013 Robot

Dimensions:29.75″W x 26.25″L x 28″H
Weight:105 lbs
Concept:Shortly after the 2013 Kickoff, 604 quickly recognized that the robot needed to quickly score Frisbees and reload from both the ground and feeder stations. With the emphasis on accurate scoring, every shot needed to be taken quickly and as accurately as possible, regardless of the position on the field or when under heavy defense. The robot needed to be short enough to maneuver under the pyramid to pickup frisbees during autonomous. Silverbolt is able to accomplish all of these with a camera tracking system to nearly make 100% of all shots. In addition, Silverbolt a 120 degree vertically rotatable shooter to adjust to the optimal position to score. Furthermore, Silverbolt has a low mounted shooter to fit underneath the pyramid and also has the ability to hang at the first level.
  • Two-speed shift-on-the-fly transmission: 6 and 17 feet per second
  • 6 wheel drive “West Coast Drive” base: Light, robust, and easy to maintain
  • Software-assisted operation: Automatic shooting sequences with vision aiming controlled by an onboard computer processor
  • Frisbee bucket hopper able to accommodate up to 4 Frisbees
  • Over 120 degree vertical shooter angle rotation to be able to shoot in all goals
  • Under-bumper pickup, just smaller than 2 Frisbees to prevent clogging
  • 2 hooked hanging arms to allow the robot to hang on the first level of the pyramid


2012 Robot photo

Dimensions:27″W x 36″L x 59″H
Weight:118 lbs
Concept:Our team recognized early on in the season that with the limited number of balls on the field, acquiring balls quickly and making every shot count would be very important. These shots also need to be taken quickly without needing much time to line up, even if the robot is under heavy defense. Furthermore, a low center of gravity was desired for easier bump traversal and bridge balancing. With a full-width pickup, high speed elevator, and a software-automated turret, our robot achieves all these criteria and is able to make close range shots quickly with near 100% accuracy, even under heavy defense.
  • Custom two-speed shift-on-the-fly transmission: 6 and 17 feet per second
  • 8wd “West Coast Drive” base: Light, robust, and easy to maintain
  • Full-width pickup: Easy ball acquisition, doubles as a bridge manipulator
  • Elevator/hopper: ~0.5 second lift to 84″ high, counterbalanced via constant force spring, holds 3 balls, very low center-of-gravity when retracted
  • Turreted shooter: ~0.5 second 360 degree rotation, 2 position hood
  • Software-assisted operation: Automatic pickup and shoot sequences, automated turret aiming, off-board image processing for maximum performance


2011 Robot photo

Dimensions:28″W x 38″L x 60″H
Weight:120 lbs
Concept:Deciding that scoring on all three levels of the rack would be crucial, our team also noted that the minibot race would change the outcome of many matches. We decided to build a robot which would have the ability to do both using a telescoping arm and a spring powered minibot deployment. By keeping the pivot point for the arm low, we are able to pick up and score on both sides. A roller gripper allows manipulation of the tube while being possessed, preparing for scoring on the rack.
  • Custom two-speed shift on the fly transmission (5 and 13 feet per second)
  • Extremely robust
  • Arm capable of scoring on all three levels
  • Roller gripper can manipulate tubes while in possession
  • Quick deployment of minibot (1 second)
  • Rapid minibot ascension (1 second)


2010 Robot photo

Dimensions:27″W x 37″L x 16″H
Weight:120 lbs
Concept:Our team decided that the ability to go over the bump would be important in the game. Although going under the tunnel would be difficult (due to the careful alignment involved), we decided to build the robot so that it could drive under the tunnel if we needed to, both as a way to force us to keep the center of gravity low as well as to give us the option of going under the tunnel the one time it may be useful. To maintain maneuverability as well as go over the bump easily, we chose an eight-wheel-drive design.A surgical tubing powered kicker, reloaded by a pneumatic cylinder, was simple to design and implement, and has less points for failure. It allows us to kick the ball into the goals from almost anywhere on the field.Finally, because the robot would be very short relative to its weight, we were able to strengthen parts of the robot where, in previous years, we would not have the weight to do so. The result is an extremely robust design.
  • Custom two-speed shift on the fly transmission (8 and 16 feet per second)
  • Extremely robust
  • Very low center of gravity; virtually impossible to tip by itself
  • Ball retention device to possess balls when the robot lines up for a shot
  • Kicker capable of scoring from all three zones
  • Goes over the bump and under the tunnel



2009 Robot photo

Dimensions:27″W x 36″L x 58″H
Weight:110 lbs
Concept:Early on in the design process, our team recognized two general design approaches to the 2009 Challenge: A “dumper” that could unload a large number of balls quickly, but only in one direction, or a “turreted shooter” capable of scoring at various angles, but would be slower and potentially less accurate.Our final design was a hybrid of the two; we combined the throughput of the dumper with the flexibility of the turret. The end result was a robot that could score within a 180-degree arc from the front of the robot, and do this at 7 balls/second.
  • Custom single-speed transmission
  • Four-wheel tank drive
  • Modular design
  • Large hopper
  • Pickup balls from the ground
  • Shoots up to 7 balls/sec.
  • Automatic camera tracking enabled
  • Able to score autonomously



2008 Robot photo

Dimensions:27″W x 37″L x 56″H
Weight:120 lbs
  • Custom two speed dog shifting transmission (7 to 15 feet per second)
  • Six-wheel drive
  • Able to hurdle the 40″ diameter trackball over the 6’6″ Overpass
  • Extremely robust
  • Reliable “Hybrid Mode”
3D ModelHere



2007 Robot photo

Dimensions:28″W x 38″L x 48″H
Weight:115 lbs
  • Custom two speed ball shifting transmission (5 to 13 feet per second)
  • Six-wheel drive
  • The team’s first camera-tracking autonomous mode
  • PID control for arm positioning



2006 Robot photo

Dimensions:28″W x 38″L x 60″H
Weight:120 lbs
  • Able to fire ‘POOF’ balls



2005 Robot photo

Dimensions:28″W x 38″L x 60″H
Weight:120 lbs.
  • Extremely Robust
  • Telescoping arm
  • Able to fire T-shirts (added after competition season)