Commit | Line | Data |
---|---|---|
ca037905 | 1 | /* |
58baeec1 MM |
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/>. | |
cd011f58 AW |
6 | */ |
7 | ||
5673fe39 MM |
8 | #include "Extruder.h" |
9 | ||
4cff3ded AW |
10 | #include "libs/Module.h" |
11 | #include "libs/Kernel.h" | |
5673fe39 | 12 | |
3fceb8eb | 13 | #include "modules/robot/Conveyor.h" |
4cff3ded | 14 | #include "modules/robot/Block.h" |
5673fe39 | 15 | #include "StepperMotor.h" |
61134a65 JM |
16 | #include "SlowTicker.h" |
17 | #include "Stepper.h" | |
18 | #include "StepTicker.h" | |
19 | #include "Config.h" | |
20 | #include "StepperMotor.h" | |
21 | #include "Robot.h" | |
7af0714f | 22 | #include "checksumm.h" |
8d54c34c | 23 | #include "ConfigValue.h" |
66383b80 | 24 | #include "Gcode.h" |
fc7b9a7b | 25 | #include "libs/StreamOutput.h" |
5673fe39 | 26 | |
5dcb2ff3 | 27 | #include <mri.h> |
4cff3ded | 28 | |
43424972 JM |
29 | #define extruder_module_enable_checksum CHECKSUM("extruder_module_enable") |
30 | #define extruder_steps_per_mm_checksum CHECKSUM("extruder_steps_per_mm") | |
31 | #define extruder_acceleration_checksum CHECKSUM("extruder_acceleration") | |
32 | #define extruder_step_pin_checksum CHECKSUM("extruder_step_pin") | |
33 | #define extruder_dir_pin_checksum CHECKSUM("extruder_dir_pin") | |
34 | #define extruder_en_pin_checksum CHECKSUM("extruder_en_pin") | |
35 | #define extruder_max_speed_checksum CHECKSUM("extruder_max_speed") | |
36 | ||
37 | #define extruder_checksum CHECKSUM("extruder") | |
38 | ||
39 | #define default_feed_rate_checksum CHECKSUM("default_feed_rate") | |
40 | #define steps_per_mm_checksum CHECKSUM("steps_per_mm") | |
41 | #define acceleration_checksum CHECKSUM("acceleration") | |
42 | #define step_pin_checksum CHECKSUM("step_pin") | |
43 | #define dir_pin_checksum CHECKSUM("dir_pin") | |
44 | #define en_pin_checksum CHECKSUM("en_pin") | |
45 | #define max_speed_checksum CHECKSUM("max_speed") | |
8adf2390 L |
46 | #define x_offset_checksum CHECKSUM("x_offset") |
47 | #define y_offset_checksum CHECKSUM("y_offset") | |
48 | #define z_offset_checksum CHECKSUM("z_offset") | |
49 | ||
50 | #define X_AXIS 0 | |
51 | #define Y_AXIS 1 | |
52 | #define Z_AXIS 2 | |
43424972 | 53 | |
41fd89e0 JM |
54 | #define max(a,b) (((a) > (b)) ? (a) : (b)) |
55 | ||
58baeec1 MM |
56 | /* The extruder module controls a filament extruder for 3D printing: http://en.wikipedia.org/wiki/Fused_deposition_modeling |
57 | * It can work in two modes : either the head does not move, and the extruder moves the filament at a specified speed ( SOLO mode here ) | |
58 | * or the head moves, and the extruder moves plastic at a speed proportional to the movement of the head ( FOLLOW mode here ). | |
4464301d AW |
59 | */ |
60 | ||
14ecdbd7 | 61 | Extruder::Extruder( uint16_t config_identifier ) { |
436a2cd1 | 62 | this->absolute_mode = true; |
540c8365 | 63 | this->enabled = false; |
14ecdbd7 AW |
64 | this->paused = false; |
65 | this->single_config = false; | |
66 | this->identifier = config_identifier; | |
8adf2390 L |
67 | |
68 | for(int i=0;i<3;i++){ | |
69 | this->offset[i] = 0; | |
70 | } | |
436a2cd1 | 71 | } |
4cff3ded AW |
72 | |
73 | void Extruder::on_module_loaded() { | |
f5598f5b | 74 | |
4cff3ded | 75 | // Settings |
da24d6ae | 76 | this->on_config_reload(this); |
4cff3ded AW |
77 | |
78 | // We work on the same Block as Stepper, so we need to know when it gets a new one and drops one | |
476dcb96 | 79 | register_for_event(ON_CONFIG_RELOAD); |
4cff3ded AW |
80 | this->register_for_event(ON_BLOCK_BEGIN); |
81 | this->register_for_event(ON_BLOCK_END); | |
6989211c | 82 | this->register_for_event(ON_GCODE_RECEIVED); |
436a2cd1 | 83 | this->register_for_event(ON_GCODE_EXECUTE); |
81b547a1 AW |
84 | this->register_for_event(ON_PLAY); |
85 | this->register_for_event(ON_PAUSE); | |
be8332cd | 86 | this->register_for_event(ON_SPEED_CHANGE); |
ca037905 | 87 | |
ded56b35 | 88 | // Start values |
4cff3ded AW |
89 | this->target_position = 0; |
90 | this->current_position = 0; | |
150bce10 | 91 | this->unstepped_distance = 0; |
4cff3ded | 92 | this->current_block = NULL; |
ded56b35 | 93 | this->mode = OFF; |
ca037905 | 94 | |
ded56b35 | 95 | // Update speed every *acceleration_ticks_per_second* |
7b49793d | 96 | // TODO: Make this an independent setting |
314ab8f7 | 97 | THEKERNEL->slow_ticker->attach( THEKERNEL->stepper->acceleration_ticks_per_second , this, &Extruder::acceleration_tick ); |
ded56b35 | 98 | |
be8332cd | 99 | // Stepper motor object for the extruder |
9c5fa39a | 100 | this->stepper_motor = THEKERNEL->step_ticker->add_stepper_motor( new StepperMotor(step_pin, dir_pin, en_pin) ); |
58baeec1 | 101 | this->stepper_motor->attach(this, &Extruder::stepper_motor_finished_move ); |
3b1e82d2 | 102 | |
4cff3ded AW |
103 | } |
104 | ||
2bb8b390 | 105 | // Get config |
da24d6ae | 106 | void Extruder::on_config_reload(void* argument){ |
58baeec1 | 107 | |
14ecdbd7 | 108 | // If this module uses the old "single extruder" configuration style |
43424972 | 109 | if( this->single_config ){ |
14ecdbd7 | 110 | |
314ab8f7 MM |
111 | this->steps_per_millimeter = THEKERNEL->config->value(extruder_steps_per_mm_checksum )->by_default(1)->as_number(); |
112 | this->acceleration = THEKERNEL->config->value(extruder_acceleration_checksum )->by_default(1000)->as_number(); | |
113 | this->max_speed = THEKERNEL->config->value(extruder_max_speed_checksum )->by_default(1000)->as_number(); | |
114 | this->feed_rate = THEKERNEL->config->value(default_feed_rate_checksum )->by_default(1000)->as_number(); | |
14ecdbd7 | 115 | |
314ab8f7 MM |
116 | this->step_pin.from_string( THEKERNEL->config->value(extruder_step_pin_checksum )->by_default("nc" )->as_string())->as_output(); |
117 | this->dir_pin.from_string( THEKERNEL->config->value(extruder_dir_pin_checksum )->by_default("nc" )->as_string())->as_output(); | |
118 | this->en_pin.from_string( THEKERNEL->config->value(extruder_en_pin_checksum )->by_default("nc" )->as_string())->as_output(); | |
14ecdbd7 | 119 | |
8adf2390 L |
120 | for(int i=0;i<3;i++){ |
121 | this->offset[i] = 0; | |
122 | } | |
123 | ||
540c8365 L |
124 | this->enabled = true; |
125 | ||
14ecdbd7 AW |
126 | }else{ |
127 | // If this module was created with the new multi extruder configuration style | |
128 | ||
314ab8f7 MM |
129 | this->steps_per_millimeter = THEKERNEL->config->value(extruder_checksum, this->identifier, steps_per_mm_checksum )->by_default(1)->as_number(); |
130 | this->acceleration = THEKERNEL->config->value(extruder_checksum, this->identifier, acceleration_checksum )->by_default(1000)->as_number(); | |
131 | this->max_speed = THEKERNEL->config->value(extruder_checksum, this->identifier, max_speed_checksum )->by_default(1000)->as_number(); | |
132 | this->feed_rate = THEKERNEL->config->value( default_feed_rate_checksum )->by_default(1000)->as_number(); | |
14ecdbd7 | 133 | |
314ab8f7 MM |
134 | this->step_pin.from_string( THEKERNEL->config->value(extruder_checksum, this->identifier, step_pin_checksum )->by_default("nc" )->as_string())->as_output(); |
135 | this->dir_pin.from_string( THEKERNEL->config->value(extruder_checksum, this->identifier, dir_pin_checksum )->by_default("nc" )->as_string())->as_output(); | |
136 | this->en_pin.from_string( THEKERNEL->config->value(extruder_checksum, this->identifier, en_pin_checksum )->by_default("nc" )->as_string())->as_output(); | |
14ecdbd7 | 137 | |
8adf2390 L |
138 | this->offset[X_AXIS] = THEKERNEL->config->value(extruder_checksum, this->identifier, x_offset_checksum )->by_default(0)->as_number(); |
139 | this->offset[Y_AXIS] = THEKERNEL->config->value(extruder_checksum, this->identifier, y_offset_checksum )->by_default(0)->as_number(); | |
140 | this->offset[Z_AXIS] = THEKERNEL->config->value(extruder_checksum, this->identifier, z_offset_checksum )->by_default(0)->as_number(); | |
141 | ||
14ecdbd7 AW |
142 | } |
143 | ||
436a2cd1 AW |
144 | } |
145 | ||
81b547a1 AW |
146 | |
147 | // When the play/pause button is set to pause, or a module calls the ON_PAUSE event | |
148 | void Extruder::on_pause(void* argument){ | |
149 | this->paused = true; | |
83ecfc46 | 150 | this->stepper_motor->pause(); |
81b547a1 AW |
151 | } |
152 | ||
153 | // When the play/pause button is set to play, or a module calls the ON_PLAY event | |
154 | void Extruder::on_play(void* argument){ | |
155 | this->paused = false; | |
83ecfc46 | 156 | this->stepper_motor->unpause(); |
81b547a1 AW |
157 | } |
158 | ||
5dcb2ff3 AW |
159 | |
160 | void Extruder::on_gcode_received(void *argument){ | |
6989211c | 161 | Gcode *gcode = static_cast<Gcode*>(argument); |
5dcb2ff3 AW |
162 | |
163 | // Gcodes to execute immediately | |
3c4f2dd8 | 164 | if (gcode->has_m){ |
1440c258 | 165 | if (gcode->m == 114 && this->enabled){ |
4d9f562f JM |
166 | char buf[16]; |
167 | int n= snprintf(buf, sizeof(buf), " E:%1.3f ", this->current_position); | |
168 | gcode->txt_after_ok.append(buf, n); | |
74b6303c | 169 | gcode->mark_as_taken(); |
33e4cc02 | 170 | |
1440c258 | 171 | }else if (gcode->m == 92 && this->enabled ){ |
1ad23cd3 | 172 | float spm = this->steps_per_millimeter; |
7369629d MM |
173 | if (gcode->has_letter('E')) |
174 | spm = gcode->get_value('E'); | |
175 | gcode->stream->printf("E:%g ", spm); | |
176 | gcode->add_nl = true; | |
74b6303c | 177 | gcode->mark_as_taken(); |
33e4cc02 JM |
178 | |
179 | }else if (gcode->m == 500 || gcode->m == 503){// M500 saves some volatile settings to config override file, M503 just prints the settings | |
180 | gcode->stream->printf(";E Steps per mm:\nM92 E%1.4f\n", this->steps_per_millimeter); | |
181 | gcode->mark_as_taken(); | |
f2f0dfed | 182 | return; |
7369629d | 183 | } |
6989211c | 184 | } |
8519d744 | 185 | |
5dcb2ff3 | 186 | // Gcodes to pass along to on_gcode_execute |
cf6a3131 | 187 | if( ( gcode->has_m && (gcode->m == 17 || gcode->m == 18 || gcode->m == 82 || gcode->m == 83 || gcode->m == 84 || gcode->m == 92 ) ) || ( gcode->has_g && gcode->g == 92 && gcode->has_letter('E') ) || ( gcode->has_g && ( gcode->g == 90 || gcode->g == 91 ) ) ){ |
e0ee24ed | 188 | THEKERNEL->conveyor->append_gcode(gcode); |
3c4f2dd8 AW |
189 | } |
190 | ||
191 | // Add to the queue for on_gcode_execute to process | |
1440c258 | 192 | if( gcode->has_g && gcode->g < 4 && gcode->has_letter('E') && this->enabled ){ |
3c4f2dd8 | 193 | if( !gcode->has_letter('X') && !gcode->has_letter('Y') && !gcode->has_letter('Z') ){ |
e0ee24ed | 194 | THEKERNEL->conveyor->append_gcode(gcode); |
518e225f | 195 | // This is a solo move, we add an empty block to the queue to prevent subsequent gcodes being executed at the same time |
2134bcf2 | 196 | THEKERNEL->conveyor->queue_head_block(); |
3c4f2dd8 | 197 | } |
d149c730 AW |
198 | }else{ |
199 | // This is for follow move | |
200 | ||
3c4f2dd8 AW |
201 | } |
202 | } | |
203 | ||
ded56b35 | 204 | // Compute extrusion speed based on parameters and gcode distance of travel |
436a2cd1 AW |
205 | void Extruder::on_gcode_execute(void* argument){ |
206 | Gcode* gcode = static_cast<Gcode*>(argument); | |
ca037905 | 207 | |
436a2cd1 | 208 | // Absolute/relative mode |
e6b5ae25 | 209 | if( gcode->has_m ){ |
cf6a3131 CG |
210 | if( gcode->m == 17 ){ this->en_pin.set(0); } |
211 | if( gcode->m == 18 ){ this->en_pin.set(1); } | |
e6b5ae25 AW |
212 | if( gcode->m == 82 ){ this->absolute_mode = true; } |
213 | if( gcode->m == 83 ){ this->absolute_mode = false; } | |
62bd4cfa | 214 | if( gcode->m == 84 ){ this->en_pin.set(1); } |
3c4f2dd8 AW |
215 | if (gcode->m == 92 ){ |
216 | if (gcode->has_letter('E')){ | |
0fb5b438 | 217 | this->steps_per_millimeter = gcode->get_value('E'); |
0fb5b438 | 218 | } |
0fb5b438 | 219 | } |
ca037905 MM |
220 | } |
221 | ||
222 | // The mode is OFF by default, and SOLO or FOLLOW only if we need to extrude | |
ded56b35 | 223 | this->mode = OFF; |
ca037905 | 224 | |
e6b5ae25 | 225 | if( gcode->has_g ){ |
7b49793d | 226 | // G92: Reset extruder position |
1440c258 | 227 | if( gcode->g == 92 && this->enabled ){ |
74b6303c | 228 | gcode->mark_as_taken(); |
1a2d88eb | 229 | if( gcode->has_letter('E') ){ |
e2b4a32b | 230 | this->current_position = gcode->get_value('E'); |
1a2d88eb | 231 | this->target_position = this->current_position; |
150bce10 | 232 | this->unstepped_distance = 0; |
b2aa3a55 L |
233 | }else if( gcode->get_num_args() == 0){ |
234 | this->current_position = 0.0; | |
235 | this->target_position = this->current_position; | |
150bce10 | 236 | this->unstepped_distance = 0; |
ca037905 | 237 | } |
1440c258 | 238 | }else if (((gcode->g == 0) || (gcode->g == 1)) && this->enabled){ |
ca037905 | 239 | // Extrusion length from 'G' Gcode |
1a2d88eb | 240 | if( gcode->has_letter('E' )){ |
ca037905 | 241 | // Get relative extrusion distance depending on mode ( in absolute mode we must substract target_position ) |
1ad23cd3 MM |
242 | float extrusion_distance = gcode->get_value('E'); |
243 | float relative_extrusion_distance = extrusion_distance; | |
f8dc0043 MM |
244 | if (this->absolute_mode) |
245 | { | |
246 | relative_extrusion_distance -= this->target_position; | |
247 | this->target_position = extrusion_distance; | |
248 | } | |
249 | else | |
250 | { | |
251 | this->target_position += relative_extrusion_distance; | |
252 | } | |
ca037905 | 253 | |
ded56b35 | 254 | // If the robot is moving, we follow it's movement, otherwise, we move alone |
7b49793d | 255 | if( fabs(gcode->millimeters_of_travel) < 0.0001 ){ // With floating numbers, we can have 0 != 0 ... beeeh. For more info see : http://upload.wikimedia.org/wikipedia/commons/0/0a/Cain_Henri_Vidal_Tuileries.jpg |
ded56b35 AW |
256 | this->mode = SOLO; |
257 | this->travel_distance = relative_extrusion_distance; | |
1a2d88eb | 258 | }else{ |
ca037905 | 259 | // We move proportionally to the robot's movement |
4464301d | 260 | this->mode = FOLLOW; |
ca037905 | 261 | this->travel_ratio = relative_extrusion_distance / gcode->millimeters_of_travel; |
7dab41f3 | 262 | // TODO: check resulting flowrate, limit robot speed if it exceeds max_speed |
ca037905 MM |
263 | } |
264 | ||
62bd4cfa | 265 | this->en_pin.set(0); |
ca037905 | 266 | } |
2547cf48 AW |
267 | }else if( gcode->g == 90 ){ this->absolute_mode = true; |
268 | }else if( gcode->g == 91 ){ this->absolute_mode = false; | |
1a2d88eb | 269 | } |
ca037905 | 270 | } |
8adf2390 | 271 | |
1440c258 | 272 | if (gcode->has_letter('F') && this->enabled) |
8adf2390 L |
273 | { |
274 | feed_rate = gcode->get_value('F') / THEKERNEL->robot->seconds_per_minute; | |
275 | if (feed_rate > max_speed) | |
276 | feed_rate = max_speed; | |
277 | } | |
da24d6ae AW |
278 | } |
279 | ||
ded56b35 | 280 | // When a new block begins, either follow the robot, or step by ourselves ( or stay back and do nothing ) |
4cff3ded | 281 | void Extruder::on_block_begin(void* argument){ |
c974b296 | 282 | if(!this->enabled) return; |
4cff3ded | 283 | Block* block = static_cast<Block*>(argument); |
4464301d AW |
284 | |
285 | ||
ded56b35 AW |
286 | if( this->mode == SOLO ){ |
287 | // In solo mode we take the block so we can move even if the stepper has nothing to do | |
58baeec1 | 288 | |
99826186 | 289 | this->current_position += this->travel_distance ; |
58baeec1 | 290 | |
150bce10 | 291 | int steps_to_step = abs(int(floor(this->steps_per_millimeter * (this->travel_distance +this->unstepped_distance) ))); |
d0c14c30 | 292 | |
150bce10 MM |
293 | if ( this->travel_distance > 0 ){ |
294 | this->unstepped_distance += this->travel_distance -(steps_to_step/this->steps_per_millimeter); //catch any overflow | |
295 | } else { | |
296 | this->unstepped_distance += this->travel_distance +(steps_to_step/this->steps_per_millimeter); //catch any overflow | |
297 | } | |
4464301d AW |
298 | |
299 | if( steps_to_step != 0 ){ | |
58baeec1 | 300 | |
4464301d AW |
301 | // We take the block, we have to release it or everything gets stuck |
302 | block->take(); | |
303 | this->current_block = block; | |
58baeec1 | 304 | |
ca7f724e | 305 | this->stepper_motor->steps_per_second = 0; |
58baeec1 | 306 | this->stepper_motor->move( ( this->travel_distance > 0 ), steps_to_step); |
4464301d | 307 | |
d149c730 AW |
308 | }else{ |
309 | this->current_block = NULL; | |
4464301d AW |
310 | } |
311 | ||
ded56b35 | 312 | }else if( this->mode == FOLLOW ){ |
1a2d88eb | 313 | // In non-solo mode, we just follow the stepper module |
b5a9a6c4 | 314 | this->travel_distance = block->millimeters * this->travel_ratio; |
99826186 MM |
315 | |
316 | this->current_position += this->travel_distance; | |
317 | ||
150bce10 MM |
318 | int steps_to_step = abs(int(floor(this->steps_per_millimeter * (this->travel_distance + this->unstepped_distance) ))); |
319 | ||
320 | if ( this->travel_distance > 0 ){ | |
321 | this->unstepped_distance += this->travel_distance -(steps_to_step/this->steps_per_millimeter); //catch any overflow | |
322 | } else { | |
323 | this->unstepped_distance += this->travel_distance +(steps_to_step/this->steps_per_millimeter); //catch any overflow | |
324 | } | |
99826186 | 325 | |
58baeec1 | 326 | if( steps_to_step != 0 ){ |
4464301d | 327 | block->take(); |
b5a9a6c4 MM |
328 | this->current_block = block; |
329 | ||
330 | this->stepper_motor->move( ( this->travel_distance > 0 ), steps_to_step ); | |
d0c14c30 | 331 | this->on_speed_change(0); // initialise speed in case we get called first |
d149c730 AW |
332 | }else{ |
333 | this->current_block = NULL; | |
4464301d | 334 | } |
be8332cd AW |
335 | |
336 | }else if( this->mode == OFF ){ | |
337 | // No movement means we must reset our speed | |
d149c730 | 338 | this->current_block = NULL; |
4464301d | 339 | //this->stepper_motor->set_speed(0); |
58baeec1 | 340 | |
ca037905 | 341 | } |
e2b4a32b | 342 | |
4cff3ded AW |
343 | } |
344 | ||
ded56b35 | 345 | // When a block ends, pause the stepping interrupt |
4cff3ded | 346 | void Extruder::on_block_end(void* argument){ |
c974b296 | 347 | if(!this->enabled) return; |
ca037905 MM |
348 | this->current_block = NULL; |
349 | } | |
4cff3ded | 350 | |
ded56b35 | 351 | // Called periodically to change the speed to match acceleration or to match the speed of the robot |
8b8b3339 | 352 | uint32_t Extruder::acceleration_tick(uint32_t dummy){ |
c974b296 | 353 | if(!this->enabled) return 0; |
1a2d88eb | 354 | |
ca037905 | 355 | // Avoid trying to work when we really shouldn't ( between blocks or re-entry ) |
be8332cd AW |
356 | if( this->current_block == NULL || this->paused || this->mode != SOLO ){ return 0; } |
357 | ||
358 | uint32_t current_rate = this->stepper_motor->steps_per_second; | |
99826186 | 359 | uint32_t target_rate = int(floor(this->feed_rate * this->steps_per_millimeter)); |
58baeec1 | 360 | |
4464301d | 361 | if( current_rate < target_rate ){ |
314ab8f7 | 362 | uint32_t rate_increase = int(floor((this->acceleration/THEKERNEL->stepper->acceleration_ticks_per_second)*this->steps_per_millimeter)); |
4464301d | 363 | current_rate = min( target_rate, current_rate + rate_increase ); |
0eb11a06 | 364 | } |
4464301d | 365 | if( current_rate > target_rate ){ current_rate = target_rate; } |
1a2d88eb | 366 | |
8519d744 | 367 | // steps per second |
da947c62 | 368 | this->stepper_motor->set_speed(max(current_rate, THEKERNEL->stepper->minimum_steps_per_second)); |
58baeec1 | 369 | |
be8332cd | 370 | return 0; |
ded56b35 | 371 | } |
1a2d88eb | 372 | |
be8332cd AW |
373 | // Speed has been updated for the robot's stepper, we must update accordingly |
374 | void Extruder::on_speed_change( void* argument ){ | |
c974b296 | 375 | if(!this->enabled) return; |
ca037905 | 376 | |
be8332cd | 377 | // Avoid trying to work when we really shouldn't ( between blocks or re-entry ) |
4464301d AW |
378 | if( this->current_block == NULL || this->paused || this->mode != FOLLOW || this->stepper_motor->moving != true ){ return; } |
379 | ||
380 | /* | |
da947c62 | 381 | * nominal block duration = current block's steps / ( current block's nominal rate ) |
58baeec1 | 382 | * nominal extruder rate = extruder steps / nominal block duration |
0ac1713f | 383 | * actual extruder rate = nominal extruder rate * ( ( stepper's steps per second ) / ( current block's nominal rate ) ) |
da947c62 MM |
384 | * or actual extruder rate = ( ( extruder steps * ( current block's nominal_rate ) ) / current block's steps ) * ( ( stepper's steps per second ) / ( current block's nominal rate ) ) |
385 | * or simplified : extruder steps * ( stepper's steps per second ) ) / current block's steps | |
386 | * or even : ( stepper steps per second ) * ( extruder steps / current block's steps ) | |
4464301d | 387 | */ |
58baeec1 | 388 | |
da947c62 | 389 | this->stepper_motor->set_speed( max( ( THEKERNEL->stepper->trapezoid_adjusted_rate) * ( (float)this->stepper_motor->steps_to_move / (float)this->current_block->steps_event_count ), THEKERNEL->stepper->minimum_steps_per_second ) ); |
ca037905 | 390 | |
4cff3ded AW |
391 | } |
392 | ||
4cff3ded AW |
393 | |
394 | ||
be8332cd AW |
395 | // When the stepper has finished it's move |
396 | uint32_t Extruder::stepper_motor_finished_move(uint32_t dummy){ | |
c974b296 | 397 | if(!this->enabled) return 0; |
4cff3ded | 398 | |
4464301d AW |
399 | //printf("extruder releasing\r\n"); |
400 | ||
d149c730 | 401 | if (this->current_block){ // this should always be true, but sometimes it isn't. TODO: find out why |
8519d744 | 402 | Block* block = this->current_block; |
d149c730 AW |
403 | this->current_block = NULL; |
404 | block->release(); | |
8519d744 | 405 | } |
f2203544 | 406 | return 0; |
feb204be | 407 | |
be8332cd | 408 | } |
feb204be | 409 | |
540c8365 L |
410 | void Extruder::enable(){ |
411 | this->enabled = true; | |
412 | } | |
413 | ||
414 | void Extruder::disable(){ | |
415 | this->enabled = false; | |
416 | } | |
8adf2390 L |
417 | |
418 | float* Extruder::get_offset(){ | |
419 | return this->offset; | |
420 | } | |
421 | ||
38b9f24a L |
422 | uint16_t Extruder::get_name(){ |
423 | return this->identifier; | |
424 | } | |
425 |