TileRunner Chassis with Omni Wheel Configuration

The TileRunner Omni Wheels swaps out the corner Stealth Wheels for our 4" Aluminum Omni Wheels (am-2948) to provide increased turning agility and the center Stealth Wheels are replaced with softer 4" Black Stealth Wheels (am-2648_Blk) for some additional traction.

The foundation of this drive base is a set of 0.090 inch thick aluminum components that provide a sturdy structure to build on. All of the holes in the sheet metal are on a global 16mm pattern, which integrates nicely with many structure components already on the market for FIRST Tech Challenge teams. The included plastic belly-pan increases the rigidity of the frame and provides ample mounting options for your electronics. The TileRunner Omni Wheel features 4" Aluminum Omni Wheels at the corners, Black Stealth Wheels at the center, NeveRest 40 motors and PicoBox Gearboxes with multiple gearing options. Strong 9mm HTD belts drive the outer wheels, while the center wheel on each side is direct-driven for a compact, failure-tolerant drive system. The new AndyMark Nub is used throughout the TileRunner, providing a robust D-bore interface that greatly improves torque transmission compared to standard set-screw hubs.

Note: This product ships as an unassembled kit of parts.

Gear Ratios
The kit comes with 3 different gear ratio options, so that you can experiment and understand how changing the gear ratio affects the driving performance of the TileRunner.

• 45 tooth and 35 tooth gear combination yields a 1:0.78 over drive
• Two 40 tooth gears yield a 1:1 ratio
• 35 tooth and 45 tooth gear combination yields a 1:1.28 reduction

The lower the gear ratio, the faster the output speed. The higher the gear ratio, the lower the output speed but the higher the torque.

2019 Update:

Part List