Removed the "plan" parameter.
We were incorrectly returning from the function if the printer was homed,
but plan = false. This would leave current_position with an incorrect value
If the printer is homed => finish the move and return the travel distance
If the printer is not homed => rely on end stop to prevent damage,
return travel distance even if the endstop stopped the move.
The current unload sequence does not give good results.
The Marlin 2 sequence looks good on my end. This can be later
used to improve M600
Added all the constants from Marlin 2
* Created a new function raise_z() which will move the Z axis by some
X millimeters. If plan = false, the function will return the
actual travel distance since the move is blocking.
* raise_z_above() is refactored to call raise_z()
Now the M701 and M702 will move the Z-axis relatively, and also
when done, revert the Z axis position when done.
This is a similar behavior as in Marlin 2.
It is only used when the MMU is disabled. With the MMU we use a defined ramming sequence.
When the MMU is disabled I borrowed the usages from Marlin 2.
The L parameter only defines the length for the "fast" load length.
Default value is 70mm, same as M600
- remove virtual methods (we only have one fsensor implementation at a time)
- comment out some of the debugging texts
- remove volatile and replace them with proper synchronized access to relevant variables
Don't start moving the E-motor immediately
Instead of starting the E-motor move when the load to extruder starts,
we can start when we are loading to the fsensor. At that stage
the MMU has changed from a fast load to a slow load.
Because it looks like the communication drop outs are caused by some electrical issues and we can loose even a byte from the version response, which is deadly for future operation.
When a Progress report is started, we set the CustomMsg to MMUProgress.
But there was an issue where, once the reported "Progress" action was done.
We did not reset the CustomMsg to Status. So if we are printing from the
SD card, the file name is not displayed on the LCD.
Guðni Már Gilbert
D.R.racer
Alex Voinea