Help to configure bltouch on longer lk1(alfawise u20)

General Discussion
1

Hello, I’m having trouble finding the correct pins on my board, could you help me?

I contacted the company and got the datasheet but I didn’t understand much, I did a search and didn’t find anything that could help, follow the datasheet and my configuration file:
datasheet newfdmDiyUsb-LKX.pdf (2.5 MB)
printer config printer.cfg (2.1 KB)

2

the connector that is used is the J16 that is in the datasheet, there is a longer tutorial assembling the assembly

3

According to the datasheet, the config should be:

[bltouch]
sensor_pin: PE6 # Z-Min pin (White Wire)
control_pin: PD13 # Servo control pin (Orange wire)

Wire colors only acc to original BLTouch. Verify before using!

1 Like
4

thank you very much, I had to reverse the direction of the control_pin, it looked like this at the end

[bltouch]
sensor_pin: PE6
control_pin: !PD13
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5

I also converted my LK1 to Klipper with great success. I now boughnt a 3DTouch from TriangleLabs and I’d like to ask you how did you did the wiring?

Seems like online there are two different ways, one involving soldering the 5V to a G29 pin and removing one mostfet. And the other, connecting the 5V to the 3 pin plug, but you still need to use a 10k or 100k (image says one thing and text on the official longer blog says different stuff), between 5V and Signal.

I was also considering connecting everything normally to Z Min and Z Max and just get the GND and 5V from a step down buck converter from the power supply, but not sure if SIGNAL will work this way.

Could you let me know how did you handled the wiring for the ABL? Specifically where did you get the 5V