Specs

motor resolution	200 steps/revolution (1.8 deg/step)
winding type	Bipolar
voltage	12V
current draw	1.68A max
shaft diameter	5mm diameter
mount hole pattern	4x M3 holes, standard NEMA 17 pattern
motor connector	6-pin connector (only 4 pins used)
Price	$70.00
Quantity	Express - 4 Express XL - 4
Purchase	The FarmBot Shop
internal part name	NEMA 17 Stepper Motor (no encoder)
vendor	Motor - LDO
cost	$6.00
notes	Logo engraving must NOT be stretched. Please send photo of first samples to verify.

Component tests

Test	Description	Target	Tolerance
Motor length	Measure the length of the motor body (no encoder or shaft) using digital calipers.	47.3mm	+/- 0.5mm
Motor housing fit	Mount a motor to the cross-slide plate with a horizontal motor housing. Mount a motor to the z-axis motor mount and cover with the vertical motor housing.	Motor should fit inside housing	N/A
Shaft	Mount a GT2 pulley onto the motor shaft according to the FarmBot system design.	Pulley should mount as expected	N/A
Shaft length	Measure the length of the motor shaft using digital calipers.	22mm	+/- 0.5mm
Mounting holes	Mount a motor to a cross-slide plate according to the FarmBot system design.	Screws should thread into motor as expected	N/A
Motor operation	Connect the motor to a Farmduino and issue a movement command.	Motor should operate as expected	N/A
Encoder	Connect the motor and encoder to a Farmduino, issue a movement command, and inspect the encoder position in the web app.	Encoder position values should update as expected	N/A
Engraving	Inspect the FarmBot logo engraving.	Must not be stretched	N/A