Mechanical engineering

AgroBot Drive System

A designed and machined four-wheel drive assembly for an autonomous farming robot.
Onshape3D CADMechanical DesignMachining
Rendered wheel assembly for the UBC AgroBot

Project story

I designed and machined a four-wheel drive system for UBC AgroBot's autonomous weed-exterminating robot.

The work moved from idea generation into CAD of the complete assembly. I used Onshape to model each component, specified parts through McMaster-Carr, and designed a chain drive that delivered the necessary torque while keeping the system away from muddy ground debris.

After finalizing the design, I machined the system from scratch using a lathe, milling machine, and waterjet.

Exploded CAD view of the AgroBot wheel assembly
CAD in Onshape
AgroBot wheel assembly during machining
Machining in progress
Completed AgroBot drive assembly
Build complete
AgroBot drive system installed on the field robot
In the field