Solved: Delta probing with smart effector, skipping probe points
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My config has some strange behaniour while performing delta calibration.
It probes the first point 8 times, then skips some probing points, and continues with the rest of the points. Of the ten outer points, it only probes 6 of them.My config.g:
; Configuration file for Duet WiFi (firmware version 1.20 or newer) ; executed by the firmware on start-up ; ; generated by RepRapFirmware Configuration Tool on Thu Jun 07 2018 20:41:32 GMT+0200 (West-Europa (zomertijd)) ; General preferences G90 ; Send absolute coordinates... M83 ; ...but relative extruder moves M665 L288.130:288.130:288.130:210 R139.757 H339.583 B117.5 X-0.324 Y-0.215 Z0.000 M666 X-0.675 Y0.465 Z0.210 A-0.03 B0.18 M669 X-120 Y-20 ; Network M550 PKossel ; Set machine name M552 S1 ; Enable network ;*** Access point is configured manually via M587 M586 P0 S1 ; Enable HTTP M586 P1 S0 ; Disable FTP M586 P2 S0 ; Disable Telnet ; Drives M584 X0 Y1 Z2 U4 E3 M569 P0 S0 ; Drive 0 goes backwards M569 P1 S0 ; Drive 1 goes backwards M569 P2 S0 ; Drive 2 goes backwards M569 P3 S1 ; Drive 3 goes forwards M569 P4 S0 ; Drive 4 goes backwards (flying extruder) M350 X16 Y16 Z16 U16 E16 I1 ; Configure microstepping with interpolation M92 X200 Y200 Z200 U100 E405 ; Set steps per mm M566 X600 Y600 Z600 U600 E600 ; Set maximum instantaneous speed changes (mm/min) M203 X12000 Y12000 Z12000 U12000 E3600 ; Set maximum speeds (mm/min) M201 X1500 Y1500 Z1500 U1500 E2000 ; Set accelerations (mm/s^2) M906 X1700 Y1700 Z1700 U1000 E1000 I30 ; Set motor currents (mA) and motor idle factor in per cent M84 S30 ; Set idle timeout ; Axis Limits M208 Z0 S1 ; Set minimum Z ; Endstops M574 X2 Y2 Z2 U2 S1 ; Set active high endstops ; Z-Probe M558 P8 R0.4 H10 B1 A4 F1200 T3000 ; Set Z probe type to effector and the dive height + speeds, heaters off during probing, multi probe max 10 times G31 P100 X0 Y0 Z0 ; Set Z probe trigger value, offset and trigger height M557 R105 S35 ; Define mesh grid ; Heaters M301 H0 S1.00 P10 I0.1 D200 T0.4 W180 B30 ; Use PID on bed heater (may require further tuning) M305 P0 T100000 B4725 C7.06e-8 R4700 ; Set thermistor + ADC parameters for heater 0 M143 H0 S120 ; Set temperature limit for heater 0 to 120C M305 P1 X201 ; Set PT100 for heater 1 M143 H1 S280 ; Set temperature limit for heater 1 to 280C ; Fans M106 P0 S0 I0 F500 H-1 ; Set fan 0 value, PWM signal inversion and frequency. Thermostatic control is turned off M106 P1 S1 I0 F500 H1 T45 ; Set fan 1 value, PWM signal inversion and frequency. Thermostatic control is turned on ; Tools M563 P0 D0 H1 ; Define tool 0 G10 P0 X0 Y0 Z0 ; Set tool 0 axis offsets G10 P0 R0 S0 ; Set initial tool 0 active and standby temperatures to 0C ; Automatic saving after power loss is not enabled ; Custom settings are not configured M912 P0 S-10 ; CPU temperature calibration ; Miscellaneous T0 ; Select first tool ; G29 S1 ; Load heightmap ; M376 H5 ; Set bed compensation taper M207 S1.5 R0 F2400 T1500 Z0 ; Firmware retraction for PLA M572 D0 S0.15 ; Pressure advance M501 ; Run config-override.gBed.g:
0:/sys/bed.g ; bed.g file for RepRapFirmware, generated by Escher3D calculator ; 16 points, 6 factors, probing radius: 110, probe offset (0, 0) G28 G30 P0 X0.00 Y110.00 Z-99999 H0 G30 P1 X70.71 Y84.26 Z-99999 H0 G30 P2 X108.33 Y19.10 Z-99999 H0 G30 P3 X95.26 Y-55.00 Z-99999 H0 G30 P4 X37.62 Y-103.37 Z-99999 H0 G30 P5 X-37.62 Y-103.37 Z-99999 H0 G30 P6 X-95.26 Y-55.00 Z-99999 H0 G30 P7 X-108.33 Y19.10 Z-99999 H0 G30 P8 X-70.71 Y84.26 Z-99999 H0 G30 P9 X0.00 Y55.00 Z-99999 H0 G30 P10 X47.63 Y27.50 Z-99999 H0 G30 P11 X47.63 Y-27.50 Z-99999 H0 G30 P12 X0.00 Y-55.00 Z-99999 H0 G30 P13 X-47.63 Y-27.50 Z-99999 H0 G30 P14 X-47.63 Y27.50 Z-99999 H0 G30 P15 X0 Y0 Z-99999 S6 -
Ok, I noticed the problem after changing the extruder offset for the 4th axis, M669.
When I have: M669 X0 Y0, the probing is normal.
When I change it to: M669 X-120 Y-20, the probing is weird.I have the M669 command in both config.g as in config-override.g
Is this a bug. or did I misconfigure something?
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It skips probe points in unreachable areas.
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@Danal I inderstand that, but all points are reachable. How does extruder offset on the 4th axis influence this?
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@bartolomeus Why are you specifying M669 this changes the kinematics scheme to something other than a delta?
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@Dougal1957 Because I am using a 4th axis for the xtruder. From the wiki:
"You must specify the XY offsets of the extruder outputs on additional towers relative to machine centre in the M669 command, for example:
M669 X150 Y100"
Anyway, your answer did point me in the right direction. I think I've almost solved it.
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Ok, solved. My M669 was wrong, it is X-100 Y20. Apparantly with Y-20, in combination with the specified 4th axis 'rod length', the probe points were out of reach. Thanks @Danal
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@bartolomeus Glad you got it sorted it's not something I have tried so not looked to deeply into the M669 (I thought it was only for Cartesian Corey polar scare and any other custom Kinematic other than Delta)
