Introduction:

For this design we used an already assembled robot from the previous year instead of building a new drivetrain for testing. This design has five wheels on each side that are driven by chain with a total of four motors. The middle three wheels are in contact with the ground at all times and the outer two are raised up off of the ground and are used for stabilization and to help the robot go up a ramp with ease.

PTC CREO Design

Specifications

  • four AndyMark motors
  • ten 3in tetrix wheels
  • four tooth gears
  • six tooth gears
  • four sets of .25 chain
  • twelve tetrix sprockets

Testing Data

Robot test weight - 55 lbs.
Straight line test - 6.4 Seconds

Stall Weight test - 25 lbs.

Slide test - 65 lbs.

Ramp test - Pass

Spin Test - 2.1 Seconds

Summary:

Obesity...
This robot is fat;
Dieting plans have been tried.
They were all failures.

In summary, this robot is a very strong defensive bot, and is not easily pushed around the field. It is also very stable and not easily tipped. However, it draws a significant amount of current and so the battery quickly drains during a match. It is also expensive and rather complicated to build.