Auto_Bed_Leveling with positive Z_PROBE_OFFSET_FROM_EXTRUDER

[regpye]

regpye,

that sounds interessting, could you please post a photo for us to understand the hardware setup better? I use auto bed leveling with a servo right now, but I´m always open to try other solutions.

Hotend1.jpgHotend2.jpgHotend3.jpgHotend4.jpg
The hotend is like a hinge. When the nozzle touches the bed the hinge moves to activate a small micro switch. A light spring returns the hotend to it's printing position (only 2mm movement)
The hotend shown in these photos is working well, but I have noticed that it could be better,so I have designed another one that has a longer arm to increase the leverage and reduce the movement needed to activate the switch. The short version as shown works, but there is some deflection when the probing takes place as the X carriage is extended.
Yesterday I re-designed and printed the new part and I will try and test it out with the settings I have presently (although the settings are not perfect yet)

[regpye]

Some other photos to show a bit more
Micro switch triggered by lever
.Hotend6.jpg


Another machine with a few small changes
Picture 005.jpgPicture-006.jpg


Very first test print
Picture-045.jpg

One of my test machines, just finished first test print.
Picture-046.jpg