I’m new here so not sure if this is the correct place to ask for help, but here goes.
I have a diy Mendel/i3 which I built some years ago and had it working successfully. I ignored it for about 4 years and now have decided to resurrect it but it is acting all emotional and will not cooperate with me. I have upgraded the Marlin firmware to Bugfix-2.0.x and have added an inductive probe for bed levelling. Inititally I used Marlin 2.0.x and eventually managed to successfully probe the bed with Bilateral probing on the normal 9 point matrix.
However since upgrading to the Bugfix Marlin I have probed the bed successfully only once, now the printer is sulking and stops probing at the 3rd probe point. As an ex teacher I’m used to obstreperous teenagers but this thing has me foxed!!
By the way, I have the inductive probe connected to the Z_MIN on my ramps 1.4 board and am using the +5V for the probe, should I use 12V to drive the probe with a suitable voltage reduction circuit for the signal Voltage? But it has already worked successfully and repeatably with present set up.
Any suggestions would be really appreciated - even psychiatric (for me , not the prrinter)!