From cd733add3b188c96dd61b5963a9aa8891c4a444d Mon Sep 17 00:00:00 2001 From: sorted01 <83211473+sorted01@users.noreply.github.com> Date: Mon, 9 Oct 2023 09:58:44 +0200 Subject: [PATCH] Add files via upload --- additional.cfg | 217 +++++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 217 insertions(+) create mode 100644 additional.cfg diff --git a/additional.cfg b/additional.cfg new file mode 100644 index 0000000..8002175 --- /dev/null +++ b/additional.cfg @@ -0,0 +1,217 @@ +#[servo cutter_gantry_servo] +#pin: PB6 +#initial_angle: 180 + + +#[gcode_macro gantry_servo_down] +#gcode: +# SET_SERVO SERVO=cutter_gantry_servo ANGLE=55 + +#[gcode_macro gantry_servo_up] +#gcode: +# SET_SERVO SERVO=cutter_gantry_servo ANGLE=180 + + +[gcode_macro _MMU_CUT_TIP] +description: Cut filament by pressing the cutter on a pin with a horizontal movement. + +# Distance to retract prior to making the cut, this reduces wasted filament but might cause clog +# if set too large and/or if there are gaps in the hotend assembly +# This must be less than the distance from the nozzle to the cutter. +variable_retract_length: 33 + +# The location of the pin, this should be the position of the toolhead when the cutter +# just lightly touches the pin +variable_pin_loc_x: 14 +variable_pin_loc_y: 357 + +# The starting and end positions when making the cut +# In particular, instead of making the cut by traveling to the pin location above, +# we leave a small safety margin along X-axis to avoid scratching on the pin when traveling +# This should also give a small distance to produce some momentum when pressing on the pin +variable_pin_park_x_dist: 5.0 + +# Position of the toolhead when the cutter is fully compressed +# Should leave a small headroom (e.g., should be a bit larger than 0, or whatever xmin is) to avoid banging the toolhead or gantry +variable_pin_loc_x_compressed: 0 + +# Retract length and speed after the cut so that eh cutter can go back into its origin position +variable_rip_length: 1 +variable_rip_spd: 750 + +# Pushback of the remaining tip from the cold end into the hotend +variable_pushback_length: 0 +variable_push_dwell_time: 50 # time to dwell between the pushback + +# Speed related settings +# Note that if the cut speed is too fast, the steppers can lose steps +# Therefore, for a cut: +# - We first make a fast move to accumulate some momentum and get the cut blade to the initial contact with the filament +# - We then make a slow move for the actual cut to happen +variable_travel_spd: 7800 +variable_cut_fast_move_spd: 2000 +variable_cut_slow_move_spd: 500 +variable_evacuate_speed: 7800 +variable_cut_dwell_time: 50 # time to dwell at the cut point in ms +variable_cut_fast_move_fraction: 1.0 # fraction of the move that uses fast move + +# Safety margin for fast vs slow travel +# When traveling to the pin location, we make a safer but longer move if we closer to the pin than this specified margin +# Usually setting these to the size of the toolhead (plus a small margin) should be good enough +variable_safe_margin_x: 30 +variable_safe_margin_y: 30 + +# Whether or not to make a second cut +# The goal of the second cut is to avoid filament adding friction to the blade causing the lever unable to decompress +# If set to a positive value, we first retract this amount, make the second cut, then extrude back +# Set to 0 to disable to second cut +# You should only enable this if you cannot get the lever to reliabily decompress. +variable_second_cut_retract_length: 0 + +# Whether to eject the filament at the end +variable_final_eject: 0 + +# Currently ERCF software assumes that tip forming move always moves the extruder (and consequently the encoder) +# Ideally, we should bring formal support of filament cutters to the ERCF software +# In the short term, we perform a "hack" where we wiggle the extruder a little after cutting, +# if the extruder did not make enough movement during the filament cutting phase. +variable_extruder_minimum_movement: 0 # the minimum extruder movement required for this tip forming move, this depends on the minimum distance that the encoder can reliably detect + # setting it to a lower value requires the ERCF encoder to be more sensitive. +variable_extruder_wiggle_length: 10 # the length to retract -> extrude during a wiggle, this needs to be large enough for the encoder to detect the movement +variable_extruder_wiggle_repeat: 3 # number of repeats for the wiggle + +# Optionally move to location immediately after making the cut +#variable_x_after_toolchange: -1000 +#variable_y_after_toolchange: -1000 + +variable_output_park_pos: 37.5 # this should be set to the distance from the nozzle tip to the blade for filametrix type cutter + +gcode: + {% set RETRACT_LENGTH = params.RETRACT_LENGTH | default(printer['gcode_macro _MMU_CUT_TIP']['retract_length']) | float %} + {% set PUSHBACK_LENGTH = params.PUSHBACK_LENGTH | default(printer['gcode_macro _MMU_CUT_TIP']['pushback_length']) | float %} + {% set FINAL_EJECT = params.FINAL_EJECT | default(printer['gcode_macro _MMU_CUT_TIP']['final_eject'], True) | int %} + {% set current_loc_x = printer.gcode_move.gcode_position.x %} + {% set current_loc_y = printer.gcode_move.gcode_position.y %} + {% set push_dwell_time = printer['gcode_macro _MMU_CUT_TIP']['push_dwell_time'] | float %} + + SAVE_GCODE_STATE NAME=_MMU_CUT_TIP_state + + {% if ("x" not in printer.toolhead.homed_axes) or ("y" not in printer.toolhead.homed_axes) %} + G28 X Y + {% endif %} + + {% set prev_pa = printer.extruder.pressure_advance %} + SET_PRESSURE_ADVANCE ADVANCE=0 # temporaily disable PA + + {% set pin_park_x_loc = pin_loc_x + pin_park_x_dist %} + {% set pin_park_y_loc = pin_loc_y %} + {% set _extruder_moved_dist = 0 %} + + M83 # relative extrusion + {% if RETRACT_LENGTH > 0 %} + G1 E-{RETRACT_LENGTH} F3000 # retract to save filament waste + {% set _extruder_moved_dist = _extruder_moved_dist + RETRACT_LENGTH %} + {% endif %} + +# gantry_servo_up + + G90 # absolute positioning + _MOVE_TO_CUTTER_PIN PIN_PARK_X_LOC={pin_park_x_loc} PIN_PARK_Y_LOC={pin_park_y_loc} + +# gantry_servo_down + + # Make the main cut + _DO_CUT_MOTION PIN_PARK_X_LOC={pin_park_x_loc} RIP_LENGTH={rip_length} + {% set _extruder_moved_dist = _extruder_moved_dist + rip_length %} + + # Optional secondary cut to help decompressing the lever + {% if second_cut_retract_length > 0 %} + G1 E-{second_cut_retract_length} F3000 + _DO_CUT_MOTION PIN_PARK_X_LOC={pin_park_x_loc} RIP_LENGTH=-1 + G1 E{second_cut_retract_length} F3000 + {% endif %} + +# gantry_servo_up + + + # pushback of the tip residual into the hotend + {% if PUSHBACK_LENGTH > 0 %} + G1 E{PUSHBACK_LENGTH} F1000 +# G4 P{push_dwell_time} +# G1 E-{PUSHBACK_LENGTH} F1000 + {% set _extruder_moved_dist = _extruder_moved_dist - PUSHBACK_LENGTH %} + {% endif %} + + {% if FINAL_EJECT == 1 %} + G1 E-80 F3000 + {% set _extruder_moved_dist = _extruder_moved_dist + 80 %} + {% endif %} + + {% if _extruder_moved_dist < extruder_minimum_movement %} + # make some wiggle moves so that the encoder catch them + {% for _ in range(extruder_wiggle_repeat) %} + G1 E-{extruder_wiggle_length} F3000 + G1 E{extruder_wiggle_length} F3000 + {% endfor %} + {% endif %} + + SET_PRESSURE_ADVANCE ADVANCE={prev_pa} # restore PA + +# {% set move_to_next_loc = ((x_after_toolchange != -1000) and (y_after_toolchange != -1000)) | int %} +# {% if move_to_next_loc %} +# G1 X{x_after_toolchange} Y{y_after_toolchange} F{travel_spd} +# {% endif %} + + # _SET_LOC_AFTER_TOOLCHANGE # clears the location + RESTORE_GCODE_STATE NAME=_MMU_CUT_TIP_state MOVE_SPEED=250 + + +#[gcode_macro _SET_LOC_AFTER_TOOLCHANGE] +#description: Set the location to travel after making a cut +#gcode: +# # Note that we use an extremely negative number to represent that we not moving anywhere afte toolchange +# {% set x_after_toolchange = params.X | default (-1000) | float %} +# {% set y_after_toolchange = params.Y | default (-1000) | float %} +# SET_GCODE_VARIABLE macro=_MMU_CUT_TIP variable=x_after_toolchange value={x_after_toolchange} +# SET_GCODE_VARIABLE macro=_MMU_CUT_TIP variable=y_after_toolchange value={y_after_toolchange} + + +[gcode_macro _MOVE_TO_CUTTER_PIN] +description: helper to move the toolhead to the target pin in either safe or faster way, depending on toolhead clearance. +gcode: + {% set safe_margin_x = printer['gcode_macro _MMU_CUT_TIP']['safe_margin_x'] | float %} + {% set safe_margin_y = printer['gcode_macro _MMU_CUT_TIP']['safe_margin_y'] | float %} + {% set travel_spd = printer['gcode_macro _MMU_CUT_TIP']['travel_spd'] | float %} + {% set pin_park_x_loc = params.PIN_PARK_X_LOC | float %} + {% set pin_park_y_loc = params.PIN_PARK_Y_LOC | float %} + + G90 # absolute positioning + {% if ((printer.gcode_move.gcode_position.x - pin_park_x_loc) | abs < safe_margin_x) or ((printer.gcode_move.gcode_position.y - pin_park_y_loc | float) | abs < safe_margin_y) %} + # Make a safe but slower travel move + G1 X{pin_park_x_loc} F{travel_spd} + G1 Y{pin_park_y_loc} F{travel_spd} + {% else %} + G1 X{pin_park_x_loc} Y{pin_park_y_loc} F{travel_spd} + {% endif %} + + +[gcode_macro _DO_CUT_MOTION] +description: helper to do a single horizontal cut movement +gcode: + {% set pin_loc_x_compressed = printer['gcode_macro _MMU_CUT_TIP']['pin_loc_x_compressed'] | float %} + {% set cut_fast_move_fraction = printer['gcode_macro _MMU_CUT_TIP']['cut_fast_move_fraction'] | float %} + {% set cut_fast_move_spd = printer['gcode_macro _MMU_CUT_TIP']['cut_fast_move_spd'] | float %} + {% set cut_slow_move_spd = printer['gcode_macro _MMU_CUT_TIP']['cut_slow_move_spd'] | float %} + {% set cut_dwell_time = printer['gcode_macro _MMU_CUT_TIP']['cut_dwell_time'] | float %} + {% set evacuate_speed = printer['gcode_macro _MMU_CUT_TIP']['evacuate_speed'] | float %} + {% set pin_park_x_loc = params.PIN_PARK_X_LOC | float %} + {% set rip_spd = printer['gcode_macro _MMU_CUT_TIP']['rip_spd'] | float %} + {% set rip_length = params.RIP_LENGTH | default(-1) | float %} + {% set fast_slow_transition_loc = (pin_loc_x_compressed - pin_park_x_loc) * cut_fast_move_fraction + pin_park_x_loc | float %} + G1 X{fast_slow_transition_loc} F{cut_fast_move_spd} # make a fast move to initiate contact of the blade with the filament + G1 X{pin_loc_x_compressed} F{cut_slow_move_spd} # do the cut in slow move + G4 P{cut_dwell_time} + {% if rip_length > 0 %} + G1 E-{rip_length} F{rip_spd} + {% endif %} + G1 X{pin_park_x_loc} F{evacuate_speed} # evacuate \ No newline at end of file