ขาย cnc shield v 3 เครื่องพิมพ์ 3 d+บอร์ดโมดูลขยาย 4 ชิ้น a 4988 driver+uno r3 พร้อมสาย usb gDFF ราคาที่ดีที่สุด

Features: 100% Brand new and high quality! This expansion board as a driver expansion board, can be used for engraving machines, 3D printers. It is a total of four slots, can drive four A4988 stepper motor. Each road stepper motors only need two IO ports. In other words, six IO ports can be well managed three stepper motors. Very convenient to use. UNO for Arduino module IO port correspondence introduction. Best choice for yourself or your friend.You will not be disappointed! Size: 6.8x5.2cm/2.68x2.05inch 2x1.5cm/0.79x0.59inch 6.8x 5.3cm/2.68x2.09inch Note: 1. Due to the different monitor and light effect, the actual color of the item might be slightly different from the color showed on the pictures. Thank you! 2. Please allow 0.5-1cm measuring deviation due to manual measurement.