Can anyone explain this Makergear M2 Z-axis movement.
This is a question that I will be embarrassed I asked as I learn more but I really do need help with a quick start on my Makergear M2.
I bought the printer several years ago and made a small number of successful prints until the 3D printed motor mount broke and the printer was then put into storage since I did not have time to fix it. I now have a new metal motor mount in place and I am trying to get the printer back into operation.
As part of the restoration I did unplug the wiring on the Rambo board after I made notes and took photos of the original wiring connectors and then I restored the connections to their original position. I then tried to upgrade the firmware with Marlin which I am told was the original firmware but I did not like working with this so I changed to Repetier. I now have logic problems.
1. My M2 has the top mounted Z position sensor. On homing of the Z axis the bed moves up from the rest position to about the 50% of travel position and then stops followed by a normal X and Y homing. The bed is nowhere near the Z stop and the red LED at the sensor does not illuminate.
2. If I interrupt the above Z homing process by manually operating the Z sensor before the bed reaches the 50% position the Z axis movement stops, the red sensor LED illuminates and a correct X and Y homing takes place.
I am puzzled why the Z axis homing stops in the intermediate position clear of any sensor but the rest of the homing process thinks the Z axis is correctly homed.
There are multiple references to the Z axis in configure.h but rather than hacking a solution I would prefer to use the best practices for the configuration as I am sure can be recommended by the members.
Thanks for any insights you can provide.