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Robotics - Competition page

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The Sensor Extension Cable extends the length available for creating connections from the TETRIX® PRIZM™ Robotics Controller to a sensor. Each cable is 30 cm long.


Holds eight AA batteries.


When your class is building more robots than you have remote controls for, it’s handy to have extra receivers so students can attach them while constructing their robots and not have to remove them right after running the robots. This option is a serious savings compared to buying more remote controls. Six-channel, 2.4 GHz receiver.

$160.00 $99.00

Kep Nuts feature a star washer that locks down on the heavy-duty aluminum structural elements for added strength to any TETRIX® robot design.


Designed especially for SkillsUSA, the Robotics: Urban Search & Rescue Challenge Set features heavy-duty, aircraft-grade aluminum elements for construction, powerful drive motors, and expandable capabilities. TETRIX® provides the ideal platform for creativity. The patented hole pattern on TETRIX structural pieces is unique to this system and enables competitors to attach pieces at angles as well as horizontally and vertically.

The challenge kit includes the following:

  • Brackets and mounts
  • Structural channels and plates
  • Structural tubing and hubs
  • Wheels, gears, and drive trains
  • NiMH battery pack and charger
  • R/C transmitters, receivers, and motor controllers
  • Wireless camera

Requires AA batteries, sold separately.

Note: This set does not provide instructions to build a specific robot, including the one pictured. It has a builder’s guide illustrating a basic chassis build, proper wiring, etc. The set is designed for the USAR, which is an engineering competition in which competitors design and build their own original robot.


Give your servo a little more room to roam with this extension.


For connecting two servos to one channel.


These 6-32 Socket Head Cap Screws connect your robot design. Requires hex keys, sold separately, to tighten and loosen the screws.

Options Available
From $8.65

These 11 mm long bronze axle bushings are greased to reduce friction.


The 10-cell, 12-volt AA rechargeable pack is small and lightweight yet still packs a powerful punch. This 2,000 mAh NiMH pack features a built-in 15-amp replaceable fuse for safety.


Use this 10-cell, 12-volt rechargeable pack to bring long-lasting power to TETRIX® motors and electronics. This 3,000 mAh NiMH pack features a built-in, 20-amp replaceable fuse for safety.


These bearings provide extra support when building mechanisms interact with heavy-duty loads.


Heavy-duty aluminum channel pieces are the structural base for building with the TETRIX® building system. Comes in five different lengths for flexible building – also, pieces can be cut to custom lengths with a metal-cutting blade.

Options Available
From $10.95

Get programmable control while keeping your robot looking clean and tidy.

The TETRIX® Autonomous Mounting Deck features precut holes to make it easy to mount an Arduino or Parallax Basic Stamp programmable controller to a TETRIX robot, as well as the TETRIX DC Motor Speed Controller.

The deck is sized to fit the TETRIX hole pattern spacing so it can be used on a variety of robot designs. Made from 1/8" black acrylic and measures 6.25" x 3.75". Includes screws, nuts, kep nuts, and acrylic spacers for mounting components.

$15.95 $10.95

Used to attach gears and wheels to axles and axles to structural elements. Features heavy-duty aluminum construction.


TETRIX® MAX Axle Set Collars lock a rotating axle to secure the horizontal alignment.