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3-Motor Chassis
Building: Advanced


This robot base (chassis) uses two-motor drive and a pivoting castor wheel to allow it to turn easily on either carpet or hard floors, and it has the third motor mounted low in the center with some attachment points for things that you can attach to it.  This chassis is sturdy and level and can be used as a base for other projects.
As a variation on the castor wheel design, the 3-Motor Chassis design includes a location where you can insert an axle to prevent the castor wheel from pivoting.  This will create a straight third wheel that is suitable for use on on hard smooth surfaces by rolling when going straight and sliding from side to side when turning.

You can experiment with the differences in accuracy and turning ability of the two variations.

Video (YouTube) Video

Building Instructions



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