To maintain an accurate step count (which is required for correct
position recovery), any call to plan_set_position&co needs to be done
synchronously and from a halted state.
However, G92 E* is currently special-cased to skip the sync (likely to
avoid the associated performance cost), causing an incorrect E step
count and position to be set. This breaks absolute position recovery,
miscalculation of the LA factor and possibly other weird issues.
We rewrite the handling of G92 to always sync but still special-case the
frequent "G92 E0" for performance by using a free bit in the block flags.
To avoid a sync, we relay the request for reset first to the planner
which clears its internal state and then relays the request to the final
stepper isr.
When check_z_endstop is set, Z_MIN_PIN is checkend regardless of the
moving direction to support Z calibration. This prevents the ability
to use _just_ SG when moving upwards.
But since we know the extruder is at Z_MIN, it's always safe to raise
irregardless, so we can dodge the issue.
Do not unconditionally enqueue a Z move if no move has been requested.
Since Z is calculated using the absolute current (saved) position and
scheduled for later execution, the queue order becomes relevant.
In preparation for #2161, use MBL (G80) as a "new print" boundary
instead of just re-homing to ensure the reset is issued only once for
each print.
Similarly, do not reset the autodetection when LA is disabled via M900
K0. This can/will be used during a print if different quality settings
are used for different filling roles.
Since the advance factor is computed per-segment in LA15, there's no
need to stop the planner. Allow changing K freely at each segment.
This allows varying quality factors for different filling roles, see:
https://github.com/supermerill/Slic3r/issues/108
During pause/resume/crashdetect or powerpanic K might temporarily be out
of sync when used this way. If this becomes an issue, we might need to
store K for each block, as done for the feedrate.
Move the common checks between filament sensors out of fsensor_update().
Disable the runout check if a saved state is already present (this check
was missing in the PAT9125 variant) as this is currently not supported.
Note that the CHECK_FSENSOR looks completely redundant besides
e_active().
Allow existing gcode using LA10 to transparently take advantage of LA15
by using a simple linear conversion function based on experimental
results with the MK3 implementation of linear advance.
Autodetect LA10 values based on the first M900 instruction contained in
the print. In order to support printing mixed files without resetting
the printer we also reset the autodetection status when starting a new
SD print and/or when explicitly disabling LA.
Since we cannot reliably detect whether a new print is started when
printing via USB, also reset the detection status when homing in G28,
which is generally performed once at each print. Note that this doesn't
clear the previous K value, it only allows a subsequent M900 to provide
LA10 values when printed after a LA15 file.
axis_relative_modes can cleanly handle G90/G91 and M82/M83 without the
need of "relative_mode" entirely.
Change G90/G91 to simply reset all axes according to the requested
state, which avoids to check two variables in get_coordinates(),
fixing the following incorrect handling:
G91 ; all axis relative
M83 ; set extruder absolute
G1 E1 ; should be an absolute move, but still relative
Correctly cleanup the printer state when stopping the current print:
- Disable interrupts while aborting the planner/queue to ensure
new serial commands are not inserted while aborting
- _Always_ call planner_abort_hard() to interrupt any pending move!
- Clear the saved_target, which might be set when calling stop
from within a paused state. Create a new function to clear the
paused state for future use.
- Do not disable/reset the MBL: doing so will destroy the ability to
restart correctly using M999.
Similarly to resume_print_from_ram_and_continue, abort any
planning in mesh_plan_buffer_line already in stop_and_save_print_to_ram
in case it is called for pausing only.
Remove the conflicting and mostly useless card.paused flag (the printing
is either paused, or not) and switch to isPrintPaused only which
accounts for both cases (SD/USB) correctly.
Fix M27/getStatus to show the current real status of the SD print.
Synchronize the queue on M601, as required to precisely pause the print
at the correct instruction.
Alias M25 to M601, which when combined with PR #1899 fixes issue #1614.
Guard against incorrect usage in M601, M602 and M603.
Since the global feedrate can be similarly modified for moves ahead of
time, save the original feedrate in the planner as we do for
gcode_target.
This avoids having to undo feedmultiply (and machine limits!) from
"nominal_speed" as previously done.
Thanks @leptun
Remove incorrect usage of stop_and_save_print combined with the
fsensor_recovert internal instruction which would result in a
broken sequence of events and/or broken stack.
Re-use the now safe stop/recover functions in the same spot
(fsensor_checkpoint_stream) to effectively cut a hole in the current
gcode stream to insert an M600 instruction, which removes all
recursive behavior without the need of extra state variables.
When starting to replay existing USB/SD commands from a recovery state,
an immediate relative move needs to compensate for a previously
interrupted move. This is almost the norm for the E axis.
Instead of saving the relative status of the move (which needs to
account for the world2machine conversion and is not always available on
a chunked move split by MBL) save directly the calculated target
position for the move in the original plan, which is easy to replay.
While handling moves in a recursive plan, such a filament check,
ensure restore_print_from_ram_and_continue unwinds the stack by
aborting early from any call that waits on the planner.
This currently only handles G1 moves, but hard-coded behavior that can
trigger recursive behavior (such as filament change) will probably have
to be checked too.
- Introduce raise_z_above to move Z carefully when the current position
is potentially unknown, using stallguard
- Use raise_z_above for:
* filament loading/unloading clearance
* extruder spacing when preheating (to avoid buildplate marks on PEI)
* before homing to avoid damaging the build plate and to avoid
repeated Z moves as well
Since raise_z_above is conditional, it will only raise when needed.
Calling raise_z_above when the extruder position is unknown and already
at maximum travel is safe and will prevent further vertical moves.
Fix wizard not starting after Factory RESET / All Data on MK25 printer.
This was broken by:
Author: leptun <voinea.dragos.alexandru@gmail.com>
Date: 3 weeks ago (9/12/2019 6:16:31 AM)
Commit hash: 78708903e8
Also update eeprom value
Do not remember CooldownNoWait property set by M190 and M109. If M190 was invoked without parameters, CooldownNoWait property was set if it was previously set by "M109 S" or "M109 S" or printer was after power up. Otherwise CooldownNoWait was not set. Now CooldownNoWait is never set if M190 is invoked without parameters.
Saves 44 B of FLASH memory.
Do not call long_pause recursively!
long_pause() is called before resetting the lcd_command_type. As
long_pause uses st_synchronize() internally, there could be time to
schedule another call to long_pause().
As sdpos_atomic was not updated after printer power up and first power panic recovery, it was equal 0. When the first command from SD card was queued its size on SD card was computed as current SD index position minus sdpos_atomic. This was equal to offset from beginning of the file limited to 16 bit storage type. When next power outage occurred earlier then this command was finished and wiped out of queue, this command size (extraordinarily big) was subtracted from sdpos_atomic and saved to EEPROM. This led to up to 65536 B jump back in file printed after next power panic recovery.
Remove variable CrashDetectMenu. Read this state from EEPROM_CRASH_DET instead in bool lcd_crash_detect_enabled().
Rename crashdet_enable() to lcd_crash_detect_enable() and move it to ultralcd.cpp.
Rename crashdet_disable() to lcd_crash_detect_disable() and move it to ultralcd.cpp.
Rename lcd_crash_mode_set() to crash_mode_switch().
Remove forward function declarations from *.cpp file.
Saves 34B of FLASH and 2B of RAM.
Remove disable_z() call from uvlo_() and uvlo_tiny() power panic interrupt handlers. As historically this function was empty. And in case PSU_Delta macro defined it switches Z trinamic to silent mode, which could take some time and is not needed. Remove alignment to to full step from disable_force_z(), as it is not needed when switching to silent mode.
