Final Design

Final Design:

The prototype is designed with two degrees of freedom: linear motion along the x-axis and rotational motion about the y-axis. This configuration enables the saw to achieve any desired angle across all possible cross-sections of the part.

The mechanical assembly includes the following sub-systems:

• Translation stage that moves the part to the correct distances from zeroed position along x-axis. 

• Rotation stage that can accurately rotate the stock precisely in line with different angled cuts.

• Carriage forming a low profile, stable, and level base for the rotation stage to be mounted onto; it is firmly attached to the linear stage, which allows for linear motion of the rotation stage.

• Part fixture (cut block) which acts as a platform to support the stock piece while the saw cuts stock piece into final dimensions.  

• Clamping mechanism to quickly and securely hold a loaded stock piece in the part fixture while movement and cutting operations take place. 

The electronics system consists of the following components:

• Arduino microcontroller.

• Power supply 50 Watt 9-42V DC voltage source for all of the motor drivers.

• TB6600 stepper motor drivers take in 24V DC power to control stepper motors.

• NEMA 23 stepper motor turns lead skews exactly 1.8 degrees precisely and repeatedly.

• Limit switches for homing and overdrive protection.

• 10 mm Linear actuator for clamping.