With the the current definition of echo_command I cannot compile RCBugFix (Arduino IDE 1.8.1) with the error "invalid conversion from 'const char*' to 'char*'". This change resolves that.
Made the double touch portion a conditional compile based on the
PROBE_DOUBLE_TOUCH flag.
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Bugfix
The current G38 only stopped a move if it involved the Z axis.
Moved all the G38 code to it's own section and put it where it would
always be executed no matter what axis was moving or if the endstop was
enabled.
Also added a comment to configuration_adv to alert the user the double
tap had to be turned on.
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Change G38 back to using Z_MIN_PROBE
There's no Z_MIN endstop if Z_DUAL_ENDSTOPS is enabled and you have them
set to the top of the gantry.
G38 started out as using the Z_MIN_PROBE pin. I don't remember why we
changed it to the Z_MIN endstop.
The tool_change function saves the current_position to the destination
array soon after starting. Later in the switching extruder section, the
destination array is modified when moving the Z axis up & down. A later
section of tool_change moves the head back to the “original location”
using the destination array. This later section assumes that the
destination array hasn’t been modified.
The fix is to save the destination Z position and then restore it after
the Z movements have completed.
Going back to using the current_position array for the switching
extruder Z axis moves (and leaving the destination array untouched)
doesn’t fix the problem.
This bug was introduced by the “Make tool_change kinematic compatible”
commit # 847429eff4 which was merged on 10
Oct 2016 as part of PR 4982.
This bug was discovered in Issue 5966.
- Add configuration support for zigzags in either the X or Y axis, for
wipe pads significantly longer in one dimension.
- Add configuration for default number of zig-zag triangles, vs. a
magic number in `Marlin_main.cpp`.
- Update description of auto nozzle wiping to match functionality
To guarantee that the 5mS pulse from a BLTouch is recognized you need to
have the endstops.update() routine run twice in that 5mS period.
At 200 steps per mm, my system has problems below a feedrate of 120 mm
per minute.
Two things were done to guarantee the two updates within 5mS:
1) In interrupt mode, a check was added to the temperature ISR. If the
endstop interrupt flag/counter is active then it'll kick off the endstop
update routine every 1mS until the flag/counter is zero. This
flag/counter is decremented by the temperature ISR AND by the stepper
ISR.
2) In poling mode, code was added to the stepper ISR that will make sure
the ISR runs about every 1.5mS. The "extra" ISR runs only check the
endstops. This was done by grabbing the intended ISR delay and, if it's
over 2.0mS, splitting the intended delay into multiple smaller delays.
The first delay can be up to 2.0mS, the next ones 1.5mS (as needed) and
the last no less than 0.5mS.
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BLTouch error state recovery
If BLTouch already active when deploying the probe then try to reset it
& clear the probe.
If that doesn't fix it then declare an error.
Also added BLTouch init routine to startup section
Scott Lahteine