2 This file is part of Smoothie (http://smoothieware.org/). The motion control part is heavily based on Grbl (https://github.com/simen/grbl).
3 Smoothie is free software: you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation, either version 3 of the License, or (at your option) any later version.
4 Smoothie is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details.
5 You should have received a copy of the GNU General Public License along with Smoothie. If not, see <http://www.gnu.org/licenses/>.
18 #include "libs/Module.h"
19 #include "ActuatorCoordinates.h"
20 #include "nuts_bolts.h"
28 #define N_PRIMARY_AXIS 3
30 class Robot
: public Module
{
32 using wcs_t
= std::tuple
<float, float, float>;
34 void on_module_loaded();
35 void on_gcode_received(void* argument
);
37 void reset_axis_position(float position
, int axis
);
38 void reset_axis_position(float x
, float y
, float z
);
39 void reset_actuator_position(const ActuatorCoordinates
&ac
);
40 void reset_position_from_current_actuator_position();
41 float get_seconds_per_minute() const { return seconds_per_minute
; }
42 float get_z_maxfeedrate() const { return this->max_speeds
[Z_AXIS
]; }
43 float get_default_acceleration() const { return default_acceleration
; }
44 void setToolOffset(const float offset
[N_PRIMARY_AXIS
]);
45 float get_feed_rate() const;
46 float get_s_value() const { return s_value
; }
47 void set_s_value(float s
) { s_value
= s
; }
50 void check_max_actuator_speeds();
51 float to_millimeters( float value
) const { return this->inch_mode
? value
* 25.4F
: value
; }
52 float from_millimeters( float value
) const { return this->inch_mode
? value
/25.4F
: value
; }
53 float get_axis_position(int axis
) const { return(this->last_milestone
[axis
]); }
54 void get_axis_position(float position
[], size_t n
= N_PRIMARY_AXIS
) const { memcpy(position
, this->last_milestone
, n
*sizeof(float)); }
55 wcs_t
get_axis_position() const { return wcs_t(last_milestone
[X_AXIS
], last_milestone
[Y_AXIS
], last_milestone
[Z_AXIS
]); }
56 void get_current_machine_position(float *pos
) const;
57 int print_position(uint8_t subcode
, char *buf
, size_t bufsize
) const;
58 uint8_t get_current_wcs() const { return current_wcs
; }
59 std::vector
<wcs_t
> get_wcs_state() const;
60 std::tuple
<float, float, float, uint8_t> get_last_probe_position() const { return last_probe_position
; }
61 void set_last_probe_position(std::tuple
<float, float, float, uint8_t> p
) { last_probe_position
= p
; }
62 bool delta_move(const float delta
[], float rate_mm_s
, uint8_t naxis
);
63 uint8_t register_motor(StepperMotor
*);
64 uint8_t get_number_registered_motors() const {return n_motors
; }
66 BaseSolution
* arm_solution
; // Selected Arm solution ( millimeters to step calculation )
68 // gets accessed by Panel, Endstops, ZProbe
69 std::vector
<StepperMotor
*> actuators
;
71 // set by a leveling strategy to transform the target of a move according to the current plan
72 std::function
<void(float*, bool)> compensationTransform
;
73 // set by an active extruder, returns the amount tio scale the E parameter by (to convert mm³ to mm)
74 std::function
<float(void)> get_e_scale_fnc
;
76 // Workspace coordinate systems
77 wcs_t
mcs2wcs(const wcs_t
&pos
) const;
78 wcs_t
mcs2wcs(const float *pos
) const { return mcs2wcs(wcs_t(pos
[X_AXIS
], pos
[Y_AXIS
], pos
[Z_AXIS
])); }
81 bool inch_mode
:1; // true for inch mode, false for millimeter mode ( default )
82 bool absolute_mode
:1; // true for absolute mode ( default ), false for relative mode
83 bool e_absolute_mode
:1; // true for absolute mode for E ( default ), false for relative mode
84 bool next_command_is_MCS
:1; // set by G53
85 bool disable_segmentation
:1; // set to disable segmentation
86 bool disable_arm_solution
:1; // set to disable the arm solution
87 bool segment_z_moves
:1;
88 bool save_g92
:1; // save g92 on M500 if set
90 uint8_t plane_axis_0
:2; // Current plane ( XY, XZ, YZ )
91 uint8_t plane_axis_1
:2;
92 uint8_t plane_axis_2
:2;
105 bool append_milestone(const float target
[], float rate_mm_s
);
106 bool append_line( Gcode
* gcode
, const float target
[], float rate_mm_s
, float delta_e
);
107 bool append_arc( Gcode
* gcode
, const float target
[], const float offset
[], float radius
, bool is_clockwise
);
108 bool compute_arc(Gcode
* gcode
, const float offset
[], const float target
[], enum MOTION_MODE_T motion_mode
);
109 void process_move(Gcode
*gcode
, enum MOTION_MODE_T
);
111 float theta(float x
, float y
);
112 void select_plane(uint8_t axis_0
, uint8_t axis_1
, uint8_t axis_2
);
113 void clearToolOffset();
116 std::array
<wcs_t
, MAX_WCS
> wcs_offsets
; // these are persistent once saved with M500
117 uint8_t current_wcs
{0}; // 0 means G54 is enabled this is persistent once saved with M500
119 wcs_t tool_offset
; // used for multiple extruders, sets the tool offset for the current extruder applied first
120 std::tuple
<float, float, float, uint8_t> last_probe_position
{0,0,0,0};
122 using saved_state_t
= std::tuple
<float, float, bool, bool, bool, uint8_t>; // save current feedrate and absolute mode, e absolute mode, inch mode, current_wcs
123 std::stack
<saved_state_t
> state_stack
; // saves state from M120
125 float last_milestone
[k_max_actuators
]; // Last requested position, in millimeters, which is what we were requested to move to in the gcode after offsets applied but before compensation transform
126 float last_machine_position
[k_max_actuators
]; // Last machine position, which is the position before converting to actuator coordinates (includes compensation transform)
128 float seek_rate
; // Current rate for seeking moves ( mm/min )
129 float feed_rate
; // Current rate for feeding moves ( mm/min )
130 float mm_per_line_segment
; // Setting : Used to split lines into segments
131 float mm_per_arc_segment
; // Setting : Used to split arcs into segments
132 float mm_max_arc_error
; // Setting : Used to limit total arc segments to max error
133 float delta_segments_per_second
; // Setting : Used to split lines into segments for delta based on speed
134 float seconds_per_minute
; // for realtime speed change
135 float default_acceleration
; // the defualt accleration if not set for each axis
136 float s_value
; // modal S value
138 // Number of arc generation iterations by small angle approximation before exact arc trajectory
139 // correction. This parameter may be decreased if there are issues with the accuracy of the arc
140 // generations. In general, the default value is more than enough for the intended CNC applications
141 // of grbl, and should be on the order or greater than the size of the buffer to help with the
142 // computational efficiency of generating arcs.
143 int arc_correction
; // Setting : how often to rectify arc computation
144 float max_speeds
[3]; // Setting : max allowable speed in mm/s for each axis
146 uint8_t selected_extruder
;
147 uint8_t n_motors
; //count of the motors/axis registered
150 friend class Planner
;