Raptor 3D Scanner Build Manual
Appendix A (Schematics)
Interface Board
Keep strictly to the instructions as described on the images on page 22 of this Build Manual.
IT IS IMPORTANT THAT YOU CONNECT THE ELECTRONICS CORRECTLY. WRONG
INSTALLATIONS CAN DESTROY YOUR ELECTRONICS!
Stepper Motor Driver
Pay careful attention to the direction of the A4988 stepper motor driver as wrong installation will
destroy your electronics (see image on page 22 of this Build Manual).
Apply the heat sink to the stepper motor driver.
Make sure you set the reference voltage of the stepper motor drivers to 0.5 - 0.6 V. You can find
more information on the stepper motor drivers on:
http://reprap.org/wiki/StepStick
Appendix A - (Wiring Diagram)
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