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Submitted by Wim van Breen on Tue, 02/09/2021 Permalink

Dear Daniel,

Proficiat for the amount of work you performed to enable non-electronics educated like myself, still can enjoy the basics of 3D printing!

After the installation of your firmware for the SKR mini E3 V2.0 included with BL Touch, the machine started up. It checked out that so far everything was working correctly except for the BL Touch. I connected the wiring to the 5 pins socket on the board and at the same time connected the z-stop hardwired.( Just in case I thought). Disconnected X- and Y- hardwired endstops and installed sensorless homing. As expected X and Y homing worked after adjusting the sensitivity.

The BL touch probe lights up (red) en when testing the probe it seems OK. Measured all wires for connection: ok. When homing the probe clicks down. When pushed back, either manually or the bed, the Z-movement is not stopped. As far as I know the BT Touch is 5 volts and the system is set accordingly. The same probe did work perfectly well on my 8 bit MKS Gen 1.4 board.

Do you have any idea where to look for an explanation and probable solution? So far I think it is most probable a firmware issue. Hope I am wrong!

Looking forward to your reply!

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