3D Printer Parts Accessories Shield 3D Printer Engraver Expansion Board
Features: ABS, and odorless, easy to use.
Stepping motor reverse lap, pause 1 second, and then pass a circle, so
Pin which stepper motor basic control needs, the other pin is in the engraving machine, or used in 3D printer.
The expansion board can be used as engraving machine, 3D printer and other drive expansion board.
Adjusting the current output, so as to obtain a higher rate of step.

Specifications: Material: ABS
Size: 67.7x52.5mm/2.67x2.1xin

Package Includes: 1x Shield

note: Please allow 1-3cm error due to manual measurement. pls make sure you do not mind before you bid.
Due to the difference between different monitors, the picture may not reflect the actual color of the item.