OK. My issue is resolved.
There are 2 CAN Bus junction boxes in the base of the machine.
On one of these, there was a “partially” inserted cable (on the 2-connector side).
I assume this cable was used to determine an end stop, and was not working.
So the Rev 1.12 and 1.13 firmware was ignorant-of or ignoring this problem, whereas the 1.14 firmware saw this as a safety issue and inhibited the machine from moving.
In my case the solution was locating the loose connector and firmly inserting it.
For me, the real issue here was that bumping the Firmware rev took my machine from working to not working.
… Some friendly suggestions for the Snapmaker Programmers:
-
I do think that there should have been some on-screen indication of the problem, rather than simply not moving.
-
Possibly a non fatal “Warning” would have been more user-friendly since the machine has been working fine for several months without the connection.
-
Since this is a pretty major change in machine operation, I think it should have been mentioned in the Firmware change log. (both the fact that new modules were being checked, and that a missing one can cause a system shutdown). Only a bad machine ID is mentioned in the change log
Also a question: Is downloaded 1.14.2 really 1.14.1 in the log? Is this a 1 vs. 0 issue?
.