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3 Uns wurde am 28.03.2014 eine CNC-Maschine überlassen. Nachdem wir sie unter Verwendung des mitgelieferten Industrierechners ansteuern konnten, stellten wir fest, dass diese Methode nicht viel Zukunft haben würde. Kein USB, beschränkte Geschwindigkeit, laut, Win98 will man nicht im Netzwerk haben, etc.
5 Da die Fräse alle ihre Anschlüsse über D-Sub-Buchsen herausführt, wollen wir einen anderen Controller verwenden, der die Motoren direkt ansteuert. Am 24.05.2014 haben wir mit einem [http://smoothieware.org/smoothieboard Smoothieboard] erfolgreich die ersten Schritte in diese Richtung gemacht.
9 Es handelt sich um eine etwa 15 jahre alte Isel Automation Flachbett Tischfräse CNC Multi K.
10 Kaum gebraucht und vermutlich seit ~9 Jahren nicht mehr in Betrieb gewesen.
11 * Arbeitsbereich: x*y*z mm
13 * Zwei Endschalter pro Achse
14 * Derzeit zwei Frässpindeln verfügbar
15 ** [[CNC-Fräse#HF-Spindel|Hochfrequenzspindel]]
16 ** [[CNC-Fräse#Proxxon|Proxxon]]
17 * NEMA23 Schrittmotoren der Firma Nanotec [http://de.nanotec.com/fileadmin/files/Datenblaetter/Schrittmotoren/ST5918/ST5918M3008-A.pdf 4T5618M3300]
19 ==== Motoranschlüsse an der Fräse ====
20 Die Fräse führt an der Hinterseite 3 D-Sub DE-9 Buchsen heraus, die je für die Ansteuerung der X-, Y- und Z-Achse zwei Polepaaranschlüsse bereitstellt.
21 Pinbelegung D-Sub DE-9 Buchsen
34 In der Fräse selbst steckt keine Logik, die Achsen werden über drei D-Sub-Buchsen aus der Fräse herausgeführt.
39 * 20k 1/min direkt am Gerät stufenlos verstellbar
40 * Wird direkt an den Rechner angeschlossen
41 * Mit Aufnahmen für verschiedene Einsatz-Durchmesser bis 3.2 mm
42 * Hat derzeit einen Lagerschaden, reparabel.
45 * Wird von einem externen Netzteil mit Strom versorgt, das wiederum über "Fußpedal"-Anschluss mit Rechner ("HF-Spindel") verbunden wird. (Kann kurzgeschlossen werden, die Spindel ohne den Rechner zu betreiben.
48 ==== Werkzeug-Einsätze ====
56 * [https://www.dropbox.com/sc/48b807yucui78j6/YiSdTUa890 Unsortierte Bilder]
58 == Erste Experimente ==
59 [[Datei:CNC-Experimente.JPG|thumb|Erste CNC Experimente]]
60 * Anschluss an ein [http://smoothieware.org/ SmoothieBoard]
61 * Config angepasst (Siehe Upload von larsan)
62 * Mit Eagle und [http://www.pcbgcode.org/ pcb-gcode] gcode erzeugt, auf SmoothieBoard übertragen und ausgeführt
63 * Noch einige Probleme mit der Einstellung der Höhe(Z-Achse), da der Kleber unter der Platine etwas uneben war
65 === Smoothieboard config ===
66 Eine erste config fürs Smoothieboard, liegt als ''config'' im Rootverzeichnis der µSD-Karte:
68 <pre style="height:200px;overflow-y:scroll;">
69 # NOTE Lines must not exceed 132 characters
70 # Robot module configurations : general handling of movement G-codes and slicing into moves
71 default_feed_rate 100 # Default rate ( mm/minute ) for G1/G2/G3 moves
72 default_seek_rate 100 # Default rate ( mm/minute ) for G0 moves
73 mm_per_arc_segment 0.5 # Arcs are cut into segments ( lines ), this is the length for
74 # these segments. Smaller values mean more resolution,
75 # higher values mean faster computation
76 mm_per_line_segment 5 # Lines can be cut into segments ( not usefull with cartesian
77 # coordinates robots ).
79 # Arm solution configuration : Cartesian robot. Translates mm positions into stepper positions
80 alpha_steps_per_mm 800 # Steps per mm for alpha stepper
81 beta_steps_per_mm 800 # Steps per mm for beta stepper
82 gamma_steps_per_mm 800 # Steps per mm for gamma stepper
84 # Planner module configuration : Look-ahead and acceleration configuration
85 planner_queue_size 32 # DO NOT CHANGE THIS UNLESS YOU KNOW EXACTLY WHAT YOU ARE DOING
86 acceleration 3000 # Acceleration in mm/second/second.
87 acceleration_ticks_per_second 1000 # Number of times per second the speed is updated
88 junction_deviation 0.05 # Similar to the old "max_jerk", in millimeters,
89 # see https://github.com/grbl/grbl/blob/master/planner.c#L409
90 # and https://github.com/grbl/grbl/wiki/Configuring-Grbl-v0.8
91 # Lower values mean being more careful, higher values means being
92 # faster and have more jerk
93 #minimum_planner_speed 0.0 # sets the minimum planner speed in mm/sec
95 # Stepper module configuration
96 microseconds_per_step_pulse 1 # Duration of step pulses to stepper drivers, in microseconds
97 minimum_steps_per_minute 1200 # Never step slower than this
98 base_stepping_frequency 100000 # Base frequency for stepping, higher gives smoother movement
100 # Cartesian axis speed limits
101 x_axis_max_speed 30000 # mm/min
102 y_axis_max_speed 30000 # mm/min
103 z_axis_max_speed 300 # mm/min
105 # Stepper module pins ( ports, and pin numbers, appending "!" to the number will invert a pin )
106 alpha_step_pin 2.0 # Pin for alpha stepper step signal
107 alpha_dir_pin 0.5 # Pin for alpha stepper direction
108 alpha_en_pin 0.4 # Pin for alpha enable pin
109 alpha_current 1.0 # X stepper motor current
110 alpha_max_rate 30000.0 # mm/min
112 beta_step_pin 2.1 # Pin for beta stepper step signal
113 beta_dir_pin 0.11 # Pin for beta stepper direction
114 beta_en_pin 0.10 # Pin for beta enable
115 beta_current 1.0 # Y stepper motor current
116 beta_max_rate 30000.0 # mm/min
118 gamma_step_pin 2.2 # Pin for gamma stepper step signal
119 gamma_dir_pin 0.20 # Pin for gamma stepper direction
120 gamma_en_pin 0.19 # Pin for gamma enable
121 gamma_current 1.0 # Z stepper motor current
122 gamma_max_rate 300.0 # mm/min
124 # Serial communications configuration ( baud rate default to 9600 if undefined )
125 uart0.baud_rate 115200 # Baud rate for the default hardware serial port
126 second_usb_serial_enable false # This enables a second usb serial port (to have both pronterface
127 # and a terminal connected)
128 #leds_disable true # disable using leds after config loaded
131 # Extruder module configuration
132 extruder_module_enable true # Whether to activate the extruder module at all. All configuration
133 # is ignored if false
134 extruder_steps_per_mm 140 # Steps per mm for extruder stepper
135 extruder_default_feed_rate 600 # Default rate ( mm/minute ) for moves where only the extruder moves
136 extruder_acceleration 500 # Acceleration for retracts, mm/sec^2
137 extruder_max_speed 1000 # mm/sec NOTE only used for retracts
139 extruder_step_pin 2.3 # Pin for extruder step signal
140 extruder_dir_pin 0.22 # Pin for extruder dir signal
141 extruder_en_pin 0.21 # Pin for extruder enable signal
142 delta_current 1.5 # Extruder stepper motor current
144 # Laser module configuration
145 laser_module_enable false # Whether to activate the laser module at all. All configuration is
147 #laser_module_pin 2.5 # this pin will be PWMed to control the laser. Only P2.0 - P2.5
148 # can be used since laser requires hardware PWM
149 #laser_module_max_power 0.8 # this is the maximum duty cycle that will be applied to the laser
150 #laser_module_tickle_power 0.0 # this duty cycle will be used for travel moves to keep the laser
151 # active without actually burning
152 #laser_module_pwm_period 20 # this sets the pwm frequency as the period in microseconds
154 # Hotend temperature control configuration
155 temperature_control.hotend.enable true # Whether to activate this ( "hotend" ) module at all.
156 # All configuration is ignored if false.
157 temperature_control.hotend.thermistor_pin 0.23 # Pin for the thermistor to read
158 temperature_control.hotend.heater_pin 2.7 # Pin that controls the heater
159 temperature_control.hotend.thermistor EPCOS100K # see src/modules/tools/temperaturecontrol/TemperatureControl.cpp:64
160 # for a list of valid thermistor names
161 temperature_control.hotend.set_m_code 104 #
162 temperature_control.hotend.set_and_wait_m_code 109 #
163 temperature_control.hotend.designator T #
165 #temperature_control.hotend.p_factor 13.7 # permanenetly set the PID values after an auto pid
166 #temperature_control.hotend.i_factor 0.097 #
167 #temperature_control.hotend.d_factor 24 #
169 #temperature_control.hotend.max_pwm 64 # max pwm, 64 is a good value if driving a 12v resistor with 24v.
171 temperature_control.bed.enable true #
172 temperature_control.bed.thermistor_pin 0.24 #
173 temperature_control.bed.heater_pin 2.5 #
174 temperature_control.bed.thermistor Honeywell100K # see src/modules/tools/temperaturecontrol/TemperatureControl.cpp:64
175 # for a list of valid thermistor names
176 temperature_control.bed.set_m_code 140 #
177 temperature_control.bed.set_and_wait_m_code 190 #
178 temperature_control.bed.designator B #
180 #temperature_control.bed.bang_bang false # set to true to use bang bang control rather than PID
181 #temperature_control.bed.hysteresis 2.0 # set to the temperature in degrees C to use as hysteresis
182 # when using bang bang
184 # Switch module for fan control
185 switch.fan.enable true #
186 switch.fan.input_on_command M106 #
187 switch.fan.input_off_command M107 #
188 switch.fan.output_pin 2.6 #
189 switch.fan.output_type pwm # pwm output settable with S parameter in the input_on_comand
190 #switch.fan.max_pwm 255 # set max pwm for the pin default is 255
192 #switch.misc.enable true #
193 #switch.misc.input_on_command M42 #
194 #switch.misc.input_off_command M43 #
195 #switch.misc.output_pin 2.4 #
196 #switch.misc.output_type digital # just an on or off pin
198 # Switch module for spindle control
199 #switch.spindle.enable false #
202 endstops_enable true # the endstop module is enabled by default and can be disabled here
203 #corexy_homing false # set to true if homing on a hbit or corexy
204 alpha_min_endstop 1.24^ # add a ! to invert if endstop is NO connected to ground
205 alpha_max_endstop 1.25^ #
206 alpha_homing_direction home_to_min # or set to home_to_max and set alpha_max
207 alpha_min 0 # this gets loaded after homing when home_to_min is set
208 alpha_max 200 # this gets loaded after homing when home_to_max is set
209 beta_min_endstop 1.26^ #
210 beta_max_endstop 1.27^ #
211 beta_homing_direction home_to_min #
214 gamma_min_endstop 1.28^ #
215 gamma_max_endstop 1.29^ #
216 gamma_homing_direction home_to_min #
220 alpha_fast_homing_rate_mm_s 50 # feedrates in mm/second
221 beta_fast_homing_rate_mm_s 50 # "
222 gamma_fast_homing_rate_mm_s 4 # "
223 alpha_slow_homing_rate_mm_s 25 # "
224 beta_slow_homing_rate_mm_s 25 # "
225 gamma_slow_homing_rate_mm_s 2 # "
227 alpha_homing_retract_mm 5 # distance in mm
228 beta_homing_retract_mm 5 # "
229 gamma_homing_retract_mm 1 # "
231 #endstop_debounce_count 100 # uncomment if you get noise on your endstops
234 pause_button_enable true #
237 panel.enable false # set to true to enable the panel code
238 panel.lcd smoothiepanel # set type of panel
239 panel.encoder_a_pin 3.25!^ # encoder pin
240 panel.encoder_b_pin 3.26!^ # encoder pin
242 # Example for reprap discount GLCD
243 # on glcd EXP1 is to left and EXP2 is to right, pin 1 is bottom left, pin 2 is top left etc.
244 # +5v is EXP1 pin 10, Gnd is EXP1 pin 9
245 #panel.lcd reprap_discount_glcd #
246 #panel.spi_channel 0 # spi channel to use ; GLCD EXP1 Pins 3,5 (MOSI, SCLK)
247 #panel.spi_cs_pin 0.16 # spi chip select ; GLCD EXP1 Pin 4
248 #panel.encoder_a_pin 3.25!^ # encoder pin ; GLCD EXP2 Pin 3
249 #panel.encoder_b_pin 3.26!^ # encoder pin ; GLCD EXP2 Pin 5
250 #panel.click_button_pin 1.30!^ # click button ; GLCD EXP1 Pin 2
251 #panel.buzz_pin 1.31 # pin for buzzer ; GLCD EXP1 Pin 1
252 #panel.button_pause_pin 2.11^ # kill/pause ; GLCD EXP2 Pin 8 either
253 #panel.back_button_pin 2.11!^ # back button ; GLCD EXP2 Pin 8 or
255 # pins used with other panels
256 #panel.up_button_pin 0.1! # up button if used
257 #panel.down_button_pin 0.0! # down button if used
258 #panel.click_button_pin 0.18! # click button if used
260 panel.menu_offset 0 # some panels will need 1 here
262 panel.alpha_jog_feedrate 6000 # x jogging feedrate in mm/min
263 panel.beta_jog_feedrate 6000 # y jogging feedrate in mm/min
264 panel.gamma_jog_feedrate 200 # z jogging feedrate in mm/min
266 panel.hotend_temperature 185 # temp to set hotend when preheat is selected
267 panel.bed_temperature 60 # temp to set bed when preheat is selected
269 # Example of a custom menu entry, which will show up in the Custom entry.
270 # NOTE _ gets converted to space in the menu and commands, | is used to separate multiple commands
271 custom_menu.power_on.enable true #
272 custom_menu.power_on.name Power_on #
273 custom_menu.power_on.command M80 #
275 custom_menu.power_off.enable true #
276 custom_menu.power_off.name Power_off #
277 custom_menu.power_off.command M81 #
279 # Only needed on a smoothieboard
280 currentcontrol_module_enable true #
282 return_error_on_unhandled_gcode false #
285 network.enable false # enable the ethernet network services
286 network.webserver.enable true # enable the webserver
287 network.telnet.enable true # enable the telnet server
288 network.ip_address auto # use dhcp to get ip address
289 # uncomment the 3 below to manually setup ip address
290 #network.ip_address 192.168.3.222 # the IP address
291 #network.ip_mask 255.255.255.0 # the ip mask
292 #network.ip_gateway 192.168.3.1 # the gateway address
293 #network.mac_override xx.xx.xx.xx.xx.xx # override the mac address, only do this if you have a conflict
302 * AT-Industrie-PC-Gehäuse
303 * Full-size ISA Intel Rechner 233 MHz CPU
304 ** PIA-652DV 2.4 [ftp://ftp.arbor.com.tw/pub/manual/Manuals/PIA%20Series/pia-652-20.pdf Manual]
305 ** 48 MB RAM (werden nur erkannt, es stecken mehr drin, EDO, sowie SD-RAM)
306 * [[CNC-Fräse#MPK3|MPK3-Karte]]
311 * EIN/AUS-Schalter an der Front
312 * POWER und NOT-AUS-Taster für die Spindel an der Front
315 * Cherry-Tastatur und Kugelmaus
318 * Full-size ISA-Karte mit zwei D-Sub-Ausgängen an der Slotblende, Die große Buchse -> Fräse, die Kleine -> ?
319 * Versorgt die Motoren der Fräse (mit Ausnahme der Spindel) direkt mit Strom
320 * Anschluss erfolgte mit einer Kabelpeitsche von einem 25-Pol D-Sub-Stecker auf drei 9-Pol D-Sub-Stecker (einer pro Achse)
325 ==== Trimeta EdiTasc ====
326 * Steuert die Fräse, schaltet Spindel ein/aus etc.
327 * Lädt .ncp ("Zwischenformat) und .plt (hpgl)
328 * Zeigt Pfade und Position (Nullpunkt, Spindelposition)
330 * Papierdoku vorhanden
333 * neueste installierte Version der isy-Programme (es gibt noch isy, isy1 und isy2)
338 Schaltungsbasteleien - TU Chemnitz
340 http://www-user.tu-chemnitz.de/~heha/bastelecke/Rund%20um%20den%20PC/LPTISA/
342 http://www-user.tu-chemnitz.de/~heha/messtech/
344 === Kompatibilität der MPK3 mit [http://www.linuxcnc.org/ LinuxCNC] ===
345 * [http://wiki.linuxcnc.org/cgi-bin/wiki.pl?EMC2_Supported_Hardware Supported Hardware]
346 * Zwei irc chatlogs, sucht nach "bagi"
347 ** http://psha.org.ru/irc/%23emc/2005-04-05.html
348 *** <bagi> the current for each coil of the motor (2 coils - bipolar ) has to be set with one 8-Bit Port per coil.
349 *** <cradek> that should be an easy modification to emcmot.c
350 ** http://psha.org.ru/irc/%23emc/2005-04-12.html
351 *** <bagi> at the moment there is no driver for this card. it is an ISA PCB for 3 Steppers. for each motor 2 L292 and 2 8Bit for the current of the 2 coils.
355 [[Kategorie:Infrastruktur]]
356 [[Kategorie:Hardware]]