The 5" robot chassis RRC04A from Pololu is an 1/8" acrylic chassis that provides a base for our micro metal gear-motors, mounting brackets, and 42×19mm wheels. The robot chassis has many mounting holes that let you mount a variety of robot components to it. With a diameter of only five inches, this acrylic chassis is great for building robots capable of navigating tight spaces.
The RRC04A robot chassis is available in a variety of coloured (and clear) acrylics:
The 5" robot chassis RRC04A is available in a variety of colours.
Required Components (not included with Chassis)
- Two micro metal gearmotors (30:1 to100:1 gear ratios are recommended).
- One pair micro metal gearmotor brackets
- One pair 42×19mm wheels.
- One 3/8" ball caster or one 1" ball caster
|5" round robot chassis RRC04A mounting locations.|
Each chassis includes two spacers that keep the chassis at the same height. The spacers are cut out of 1/16" clear acrylic.
RRC04A chassis includes two spacers
Using the chassis
The motors can be mounted on either side of the chassis (top or bottom). With the motors mounted on the bottom, the chassis will be roughly 1" from the ground, and you can use the 1" ball caster as a third point of contact with the floor. With the motors mounted on the top, the chassis will be a roughly 0.4" from the ground, making the 3/8" ball caster with the included 1/16" spacer the best fit.
There are many different ways to connect the compatible components to the chassis. You can refer to the diagram showing where compatible components can be mounted for further information about where you might mount various components. Some configurations require stand-offs. You can see additional pictures of examples in the pictures tab.
5" round robot chassis RRC04A with an Arduino.