Linear Bearing LM12UU 12mm Ball Bearing for 3D Printer

It is one of the most popular stepper motors with 200 steps per turn and a maximum load of 4.28 kg/cm. It comes with a 1m cable. We have the best stepper motors at the best prices! 

20 Mini Jumpers 2.54mm Short Circuit Board PCB features:
- Mini standard 2.54mm jumpers for making short circuit bridges on printed circuit boards, hard disks, PCBs, etc.

IIC/I2C adapter PCF8574 LCD 1602 1604 2004 Interface features:
- Based on the PCF8574A chip
- Power: 5V
- Supports I2C Protocol
- A potentiometer for regulate contrast
- Dimensions: 19x42mm PCF8574 - & gt; the default address 0x20
PCF8574A - & gt; the default address 0x3F - You can change anyone between 0x20 and 0x27 depending on whether or not you have soldered pins A0 A1 A2 - With this module the communication between the Arduino and the LCD It is only made through two outputs, SDA and SCL
- Up to 8 LCD screens can be connected to the same I2C bus choosing a different address - Ideal for projects with ARDUINO and Raspberry Pi platforms - You can use it with PIC, AVR, STM32

Flexible Coupler 6mm/8mm CNC 3D Printer Shaft features:
- Flexible coupling in high quality aluminum with which you can join Nema 17, 6mm stepper motors to an 8 mm threaded rod
- They incorporate 4 captive screws so that you can perfectly fix the couplings to the rod
- Material: Aluminum alloy
- Coupler height (L): 25 mm
- Outside diameter: 19mm
- Shaft diameter: 6mm / 8mm

CNC shield for arduino works as a controller for CNC type milling machines,
3D printers, laser cutters .
CNC Shield Expansion Plate V3 Engraver 3D Printer features:

• 4 compatible sockets for use of A4988 stepper motor controllers (PAP), DRV8825, other compatible
• 4 support axes X, Y, Z, A
• 2 limit switches for each axis (6 in total)

10x Female-Female Cables 20cm Jumpers Dupont 2,54 features:
-Length: 20cm
-Quantity: 10 cables
-Connectors have female header contacts at either end
-Compatible with male connectors 2,54mm
-High quality and good working conditions
-Easy to install and use

Linear Bearing LM8UU 8mm Ball Bearing for 3D Printer RepRap Prusa features:

- Measurements:
* Internal diameter: 8mm
* External diameter: 15mm
* Length: 24mm
- Enclosure material: anti-corrosion chrome steel
- Inner support material: technical plastic

A4988 + RepRap Radiator features:
- Minimum operating voltage: 8 V
- Maximum operating voltage: 35 V
- Maximum current: ± 2 A (adequately ventilated or refrigerated)
- Logic voltage: 3 V / 5.5V
- Microstep resolution: full, 1/2, 1/4, 1/8, and 1/16
- Factory soldered temples
- Use potentiometer to adjust current
- Measurements: 20x16x12 mm