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This issue has had no activity for the last 90 days.
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Did you test the latest
bugfix-2.1.xcode?No, but I will test it now!
Bug Description
Im trying to set up a Bed Distance Sensor on a CORE XY with independent, sensorless homing Zs. Once the sensor is enabled in Marlin, it wants to use the Bed Sensor as a homing device and ignores the sensorless homing. I contacted the manufacture and they suggest adding a few lines that would disable the sensor's homing function (shown in the screen shots attached). All this did was revers the Z homing direction causing it to fail. I also made sure USE_PROBE_FOR_Z_HOMING remained disabled as it already was with my BL Touch.
Im sure there are additional lines of code buried somewhere that need to be reworked so that the BD Sensor is not used as a homing tool. I did notice a few bd-sensor keywords in the G28.ccp, enstops.cpp, & probe.h as well as in other places but at this point it is beyond my capabilities and i did not want to screw something up.
I originally had BL Touch set up with independent, sensorless Zs working great. So i know it is an issue with the BD Sensor set-up in marlin. I havent tried the latest Bugfix because the last bugfix i used (2 weeks ago) the bed leveling UBL was messed up and not working with my set-up. With having sensorless Zs and a CORE XY, a lot of the bugfix version seem to be incompatible or causes problems so i tend to avoid them and wait for a clean release.
Bug Timeline
New, noticed it today.
Expected behavior
with BD Sensor enabled & USE_PROBE_FOR_Z_HOMING disabled... Sensorless Z Homing should work. Just as it does with a BL Touch
Actual behavior
USE_PROBE_FOR_Z_HOMING "disabled" does not work with BD Sensor.
Steps to Reproduce
Added these lines per manufacture's recommendation
Version of Marlin Firmware
CONFIGURATION_H_VERSION 02010201
Printer model
Custom CORE XY
Electronics
SKR2.0 TMC2209
Add-ons
BD SENSOR
Bed Leveling
UBL Bilinear mesh
Your Slicer
None
Host Software
None
Don't forget to include
Configuration.handConfiguration_adv.h.Additional information & file uploads
Config Uploads.zip