Friday, November 1, 2019

Safe Installation of Stepper Motor for 3D Printer

Installing steppers is a fairly straightforward process thanks to the standardized connectors used by most manufacturers. Simply plug the motor into the correct slot of the control board, and you should be good to go. However, there are still a few things to watch out for:

Safe Installation of Stepper Motor for 3D Printer

First, never install a motor (or anything, for that matter) on a printer while it is on and plugged in. This is hazardous because if done incorrectly, you risk shocking yourself, frying delicate components, and starting an electrical fire. So please, power off the printer and unplug it before commencing work.

Second, never unplug a step motor that is being powered. If you paid attention to the first step, this isn’t a problem, but if you didn’t, you’ll likely end up frying your stepper driver, and possibly your control board.

Third, ensure your digital stepper drivers are supplying the correct amount of current to the motors. This can be adjusted through the potentiometers on the driver board, or in some cases through the software of the printer. Too little current means the motor won’t have the proper torque, and too much can cause it to overheat.

Lastly, if you notice anything obviously wrong with the operation of the motor after installation, stop whatever you are doing and power down the printer. Carefully examine your wiring and driver circuit to ensure there are no mistakes before continuing to use the motor (if there aren’t any, make sure the motor, driver, and software are all compatible). This is a safe habit to assume while working with electronics to avoid fires and fried components.

Code Explanation to control Nema 17 with Arduino
Circuit diagram to control Nema17 stepper motor with Arduino

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