76ab1b6a42
- G38.2 straight probe now supported. Rough draft. May be tweaked more as testing ramps up. - G38.2 requires at least one axis word. Multiple axis words work too. When commanded, the probe cycle will move at the last ‘F’ feed rate specified in a straight line. - During a probe cycle: If the probe pin goes low (normal high), Grbl will record that immediate position and engage a feed hold. Meaning that the CNC machine will move a little past the probe switch point, so keep federates low to stop sooner. Once stopped, Grbl will issue a move to go back to the recorded probe trigger point. - During a probe cycle: If the probe switch does not engage by the time the machine has traveled to its target coordinates, Grbl will issue an ALARM and the user will be forced to reset Grbl. (Currently G38.3 probe without error isn’t supported, but would be easy to implement later.) - After a successful probe, Grbl will send a feedback message containing the recorded probe coordinates in the machine coordinate system. This is as the g-code standard on probe parameters specifies. - The recorded probe parameters are retained in Grbl memory and can be viewed with the ‘$#’ print parameters command. Upon a power-cycle, not a soft-reset, Grbl will re-zero these values. - Moved ‘$#’ command to require IDLE or ALARM mode, because it accesses EEPROM to fetch the coordinate system offsets. - Updated the Grbl version to v0.9d. - The probe cycle is subject to change upon testing or user-feedback.
65 lines
2.6 KiB
C
65 lines
2.6 KiB
C
/*
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motion_control.h - high level interface for issuing motion commands
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Part of Grbl
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Copyright (c) 2011-2014 Sungeun K. Jeon
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Copyright (c) 2009-2011 Simen Svale Skogsrud
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Grbl is free software: you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation, either version 3 of the License, or
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(at your option) any later version.
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Grbl is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with Grbl. If not, see <http://www.gnu.org/licenses/>.
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*/
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#ifndef motion_control_h
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#define motion_control_h
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#define HOMING_CYCLE_LINE_NUMBER -1
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// Execute linear motion in absolute millimeter coordinates. Feed rate given in millimeters/second
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// unless invert_feed_rate is true. Then the feed_rate means that the motion should be completed in
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// (1 minute)/feed_rate time.
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#ifdef USE_LINE_NUMBERS
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void mc_line(float *target, float feed_rate, uint8_t invert_feed_rate, int32_t line_number);
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#else
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void mc_line(float *target, float feed_rate, uint8_t invert_feed_rate);
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#endif
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// Execute an arc in offset mode format. position == current xyz, target == target xyz,
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// offset == offset from current xyz, axis_XXX defines circle plane in tool space, axis_linear is
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// the direction of helical travel, radius == circle radius, isclockwise boolean. Used
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// for vector transformation direction.
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#ifdef USE_LINE_NUMBERS
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void mc_arc(float *position, float *target, float *offset, uint8_t axis_0, uint8_t axis_1,
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uint8_t axis_linear, float feed_rate, uint8_t invert_feed_rate, float radius, uint8_t isclockwise, int32_t line_number);
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#else
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void mc_arc(float *position, float *target, float *offset, uint8_t axis_0, uint8_t axis_1,
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uint8_t axis_linear, float feed_rate, uint8_t invert_feed_rate, float radius, uint8_t isclockwise);
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#endif
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// Dwell for a specific number of seconds
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void mc_dwell(float seconds);
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// Perform homing cycle to locate machine zero. Requires limit switches.
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void mc_homing_cycle();
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// Perform tool length probe cycle. Requires probe switch.
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#ifdef USE_LINE_NUMBERS
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void mc_probe_cycle(float *target, float feed_rate, uint8_t invert_feed_rate, int32_t line_number);
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#else
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void mc_probe_cycle(float *target, float feed_rate, uint8_t invert_feed_rate);
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#endif
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// Performs system reset. If in motion state, kills all motion and sets system alarm.
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void mc_reset();
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#endif
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