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Main functions and controls of BLTouch are same as usual auto bed leveling sensor, consists of RC servo and micro switch. Thus, BLTouch can be applied on almost every board. BLTouch does not uses either optical, nor proximity(inductive/capacitive) sensor. BLTouch is fulfilled with simple structure and high precision by using progressively designed solenoid and hall sensor. It can be easily applied, since it has a small and simple structure. The BLTouch 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. BLTouch uses existing RC Servo motor signal intactly, so just plug BLTouch on the same pins after removing servo motor.Smart Technology:Self-test: The push pin operate two times in a test when the power is on.Alarm: The AI will flash the LED indicator if a problem is detected during a self-test or operation.Wiring defect indicator : Blue and Red LED for indicating wiring defects.Kit Includes:- Latest BLTOUCH Sensor- 1 Meter Dupont extension cable set. No soldering required!- Spare parts kit with 2 x screws, nuts, and washers, 2 x mounting springs for sensor, 2 x dupont housing shell 3 pin, 2 x dupont housing shell 2 pin, 2 x dupont housing shell 1 pin, 10 x dupont terminals (M&F), and 1 x jumper cap.Warning: Electronic devices can be damaged or destroyed if connected to the wrong side polarity. Check your polarity before plugging smart sensor in. Note: An additional power supply may be needed if your board does not supply enough current at 5V. Depending on your type of 3D Printer, you may need to remove or add some parts to the controller board. Check with your printer manufacturer prior to purchase.
BLTouch is an auto leveling sensor for 3D Printers based on open-source.
Simple, Smart, & Precise with repeatability is around 0.005mm
It could work with any kinds of bed materials, such as glasses, woods, metals, and so on.
Comes with 1m dupont connector extension cable set
Absolutely the best upgrade to my 3D printer in years. Thought I was cool going to an inductive sensor a few years ago, but the BLTouch beats it hands down--I can use my ENTIRE bed surface again (rather than sticking to that 100 mm square "sweet spot" in the middle).Luckily, I already had experience upgrading the stock z-stop (from a simple micro-switch to the inductive sensor), flashing my firmware, and was also familiar with my board's servo connections (thanks to Google) ... so install took about 10 minutes including the Marlin 1.1.9 configuration tweak (9 of those minutes was just swapping the brown and red wires on the connector to match the pins on my controller board). So, I do understand some of the other reviews that state install and configuration can take some time. But it is well worth a little research and getting under the hood on your firmware. After install and firmware flash, it is a simple matter to set the Z offset (and another firmware flash) and Bob's your uncle.You will definitely need at least the 1m extension, depending on your set up (1m was perfect for my 200x200 Prusa clone) ... not sure when the included short cable would ever be useful. Thought about bumping down to 4 starts for that--but the product is just too darn good (and the options with the 1m cable is like the same price anyway). [Also, make sure you get v3.0 of the sensor--it would appear that v3.1 only works with Marlin v2--which is not fully released yet.]I don't know why I avoided the "physical" style probe (i.e. something actually touching the bed) for so long ... but this works beautifully on all bed types, is accurate anywhere on the bed, and is consistent over multiple probings.
