CNC Machine

This desktop CNC machine was built using primarily 3D printed and laser cut parts. My partner Nathan Johnson and I found the plans for this machine on Thingiverse: https://www.instructables.com/id/3D-printed-CNC-mill/ and we modified the system to fit our needs. We 3D printed and laser cut the parts for the project in house and did the electronics for the machine ourselves. The CNC Machine was controlled by an Arduino which was rooted to run grbl on it. The Arduino connected three stepper motors through stepper motor drivers which controlled the three axes of the machine; the Arduino controlled the spindle motor using a relay. To ensure that the CNC Machine was as safe as it possibly could be, we added limit switches to the six edges of the axes to ensure that the CNC Machine shut down if it accidentally hit a corner. Finally, we added an emergency stop button to the machine to shut down power to the machine in case of emergencies. For additional details on the CNC machine refer to the design document I have written for the project: CNC Machine Design Document.

The following is our video presentation at the Littleton Public Schools School Council Meeting in May 2017:

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