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BLTouch is an auto leveling Z sensor probe for 3D Printers based on open-source such as Delta or Cartesian type 3D printers.

It will work on any kind of bed materials, such as glasses, woods, metals, and so on.


BLTouch uses regular servo signals.


 Solenoid Push-pin Up ➡ servo signal 90Degree (ex : M280 P0 S90 )  ← PWM

■ Solenoid Push-pin Down  ➡ servo signal 10Degree (ex : M280 P0 S10 )

 Manual Self-test ➡ servo signal 120Degree (ex :  M280 P0 S120)

 Alarm Release ➡ servo signal 160Degree (ex : M280 P0 S160) 

■ Zmin Test Mode  ➡ servo signal 60Degree (ex : M280 P0 S60 )


※  BLTouch can be operated in the following condition.

  - One I/O(PWM or Software PWM)  for control 

  - One I/O for Zmin

  - GND and +5V  power

*  Soldering and firmware updates may be needed. 


Wiring :

3Pin :
Brown (- , GND) 

Red (+5V)

Orange (control signal)
2Pin :
Black (-, GND)

White (Zmin)

Package Contents

1 X BLTouch-S

■ Spare parts

1 X 10KΩ Resistor for Smoothieboard
1 X 240Ω Resistor for 3.3V Logic Level
1 X 3Pin Straight Pin
1 X 2Pin Straight Pin
2 X Screw & Nut & Washer
2 X Dupont Housing Shell 3Pin
2 X Dupont Housing Shell 2Pin

10X Dupont Terminal



BLTouch Specifications
Voltage 5V
Current 15mA
Maximum(Peak) Current 300mA
Color Semitransparent White
Cable Length 150mm
Weight 0.35 oz ( 10g )

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BLTouch : Auto Bed Leveling Sensor Probe (April 2017 "Smart" Edition)

  • Brand: ANTCLABS
  • Product Code: BLTouch-C
  • Availability: In Stock
  • $45.99 CAD


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Tags: BLTouch, 3D Printer Probe, 3D Printer, Probe, Auto Bed Leveling, BL, Touch, antclabs