BLTouch is a type of semiconductor hall sensor and is an electronic component for 3D Printers.
BL Touch is an auto-leveling sensor for 3D Printers that can precisely measure the tilt of the bed surface. It could work with any kinds of bed materials, such as glasses, woods, metals, and so on.
BLTouch is fulfilled with simple structure and high precision by using progressively designed solenoid and hall sensors. It aims for user convenience and enjoyable printing by adding many smart functions, such as self-test, alarm, alarm release & Touch Switch mode, Blue LED for servo signal indicating, and Z-probe(Zmin) Testing.
The main functions and controls of BLTouch are the same as the usual auto bed leveling sensor, which consists of an RC servo and microswitch. Thus, BLTouch can be applied on almost every board.
Self-test： The push pin operates two times in a test when the power is on.
Alarm：The LED light blinks if a problem was found on a self-test or during operation
Wiring defect indicator：Blue and Red LED for indicating wiring defects.
Easy to Use: This auto bed leveling sensor makes it easier to level the hotbed, which can precisely measure the tilt of the Bed surface. Bed leveling is not a problem anymore.
Intelligence self - check and alarm: The function of auto leveling is adopted to make it easier to use and to increase the success rate of shaping.
Some 3D printer motherboards have insufficient 5V power supply and may require an external 5V power supply, which shows that the probe is difficult to push out, or the logic circuit protection main control restarts during operation. If encountered, it is generally recommended to use a DC-DC step-down module to take power from the main power supply.
1. +5V and GND should not be connected reversely for a long time, it may burn
2. Please try to keep away from strong magnets, motors, fans, and other magnetic components
3. Accidentally hitting the probe plastic rod may damage or affect the detection accuracy
4. Adjusting or reassembling the set screw of the probe requires thread glue
5. Please avoid deformation of the shell when installing the probe
6. Pulling the aluminum rod hard will damage or affect the detection accuracy
1*3D touch sensor
1*SD card converter (for Ender-3 V4.2.7 version mute motherboard)