nema 17 stepper motor is used for a 3d printer. Obviously not the toy itself. Lego 3D printers can actually pump out some credible 3D models for you. Based on the Prusa I3 rework printer, the machine is matched with nema 17 stepper motor.
Although most Lego printers use servo systems, this design works well with stepper motors.
From Instructables member Gosse Adema, we can work according to the assembly mode of X-axis, Y-axis and Z-axis, which is characterized by using the default 4*2 Lego building blocks on the basis of 32 X 16 X 9.6 mm.
Once you have established a base, you will think:
1.The Y axle Y bearing housing is equipped with motor and belt to place LM8UU bearings, and there are 21.25 studs from 170mm. Use the technical brick on the back of the machine to place nema 17 stepper motor.
2.Start building frame and assemble Z axis with stepper motor and threaded rod.
This determines how high you can print, but don’t build it too high.
The higher the frame, the more unstable it is.
3.The Nema 17 stepper motor is attached with 2 x 4 and 2 x 8 orifice plates.
4.Complete X-axis and stepper motor-instructions must be carefully participated in this section as Adema warns that this is the most difficult step, including images when you complete each step with nema 17 stepper motor shaft, and belt-starting right and then left.