Auto_Bed_Leveling with positive Z_PROBE_OFFSET_FROM_EXTRUDER

[Roxy]

OK, done that and tried it oiut.
Nozzle really lifts high now ha..ha..

OK... Well, that was intentional... I would wait until everything else checks out, but you can change that equate from 10mm to 1mm or 2mm when you are ready.

And I would leave them in for now, but eventually you will want to delete that extra chit-chat about where the code is executing and what it is doing. That just clutters up the display. That was in there just to help with debugging if the firmware went crazy.

Here is a printout of what appeared on the screen as it was working.

Printer is now online.
echo:Home X/Y before Z
At end of homeaxis(Z) raising nozzle.
At end of homeaxis(Z) done raising nozzle.
SENDING:G29
At end of run_z_probe() raising nozzle.
At end of run_z_probe() done raising nozzle.
Bed x: 1.00 y: 1.00 z: 6.92
At end of run_z_probe() raising nozzle.
At end of run_z_probe() done raising nozzle.
Bed x: 158.00 y: 1.00 z: 4.12
At end of run_z_probe() raising nozzle.
At end of run_z_probe() done raising nozzle.
Bed x: 158.00 y: 160.00 z: 4.15
At end of run_z_probe() raising nozzle.
At end of run_z_probe() done raising nozzle.
Bed x: 1.00 y: 160.00 z: 6.53
Eqn coefficients: a: -0.02 b: -0.00 d: 6.84
planeNormal x: 0.02 y: 0.00 z: 1.00
echo:endstops hit: Z:-3.47

If you got all the way through the G29 probes without an issue, we might be close. I just noticed, you have a 2.5 mm slope to your bed???? I'm guessing that is on purpose?

I haven't tried a print yet, it is nearly 1.00 am here in Australia, so I am off to the shower and then to bed. Will have another look at it ion the morning (later in the morning)
Thanks for all your effort, much appreciated.

I'm sorry I was so tired last night. I couldn't stand to sit at my computer and try to get everything accurately typed in. This working back and forth across the globe really slows things down!

It may be we can handle the Z-Probe triggering during a print with just a few changes to the configuration.h file. I don't know about that yet. I guess the right thing to do is just wait until you print a part and see what happens ????

And once all that is taken care of... It would be good for you to visit this thread:

http://3dprintboard.com/showthread.p...2518#post12518

And add the M48 command to your Marlin_Main.CPP file. With that you will be able to measure the repeatability of your Z-Probe to know if the mechanics are working well. Probably you are going to get the best numbers we have seen so far.