Delta, issue with bed compensation
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So I have a delta that has been pretty reliant. (Duet2 wifi, 2060 profiles, robodigg corners, hayden rods, smart effector, 8mm milled clever3d bed)
No, all of a sudden it tells me that my bed is a skate ramp. I feel fairly confident that it is not in any way near as bad as the data says, which makes me beleive that I have some other mechanical issues. But I've done the "once over", in fact I have gone over it several times and can not find any aparent issue with rails, belts, etc.
So, dear hive mind, does anyone else have any idea what may be going on here? Bed is 300mm diameter, but I can only probe 143 radius due to conflict between belt and current cooler.
RepRapFirmware height map file v2 generated at 2021-04-26 10:10, min error -0.165, max error 0.597, mean 0.164, deviation 0.176 xmin,xmax,ymin,ymax,radius,xspacing,yspacing,xnum,ynum -120.00,120.10,-120.00,120.10,143.00,40.00,40.00,7,7 0, 0, 0.235, 0.355, 0.579, 0, 0 0, 0.057, 0.196, 0.333, 0.461, 0.597, 0 0.019, -0.003, 0.133, 0.255, 0.373, 0.434, 0.395 0.057, 0.076, 0.136, 0.202, 0.235, 0.159, 0.099 0.077, 0.061, 0.114, 0.136, 0.115, 0.056, -0.124 0, 0.114, 0.120, 0.075, -0.005, -0.165, 0 0, 0, 0.156, 0.057, -0.104, 0, 0; Configuration file for Duet WiFi (firmware version 3) ; executed by the firmware on start-up ; ; generated by RepRapFirmware Configuration Tool v3.1.3 on Sun Jun 21 2020 17:39:49 GMT+0200 (Central European Summer Time) ; General preferences G90 ; send absolute coordinates... M83 ; ...but relative extruder moves M550 P"Full Metal Delta" ; set printer name M665 R179.774 L360.2 B150 H450 ; Set delta radius, diagonal rod length, printable radius and homed height M666 X0 Y0 Z0 ; put your endstop adjustments here, or let auto calibration find them ; Network M552 S1 ; enable network M586 P0 S1 ; enable HTTP M586 P1 S0 ; disable FTP M586 P2 S0 ; disable Telnet ; Drives M569 P0 S1 ; physical drive 0 goes forwards M569 P1 S1 ; physical drive 1 goes forwards M569 P2 S1 ; physical drive 2 goes forwards M569 P3 S0 ; physical drive 3 goes forwards M584 X0 Y1 Z2 E3 ; set drive mapping M350 X16 Y16 Z16 E16 I1 ; configure microstepping with interpolation M92 X200.00 Y200.00 Z200.00 E2753.00 ; set steps per mm M566 X1200.00 Y1200.00 Z1200.00 E40.00 ; set maximum instantaneous speed changes (mm/min) M203 X40000.00 Y40000.00 Z40000.00 E1200.00 ; set maximum speeds (mm/min) M201 X4000.00 Y4000.00 Z4000.00 E120.00 ; set accelerations (mm/s^2) M906 X1000 Y1000 Z1000 E800 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 S1 P"xstop" ; configure active-high endstop for high end on X via pin xstop M574 Y2 S1 P"ystop" ; configure active-high endstop for high end on Y via pin ystop M574 Z2 S1 P"zstop" ; configure active-high endstop for high end on Z via pin zstop ; Z-Probe M558 P5 R0.4 C"zprobe.in+zprobe.mod" H5.5 F1200 T4000 ; set Z probe type to effector and the dive height + speeds G31 P500 X0 Y0 Z-0.21 ; set Z probe trigger value, offset and trigger height M557 R140 S40 ; define mesh grid ; Filament sensor M591 P3 C"e0_stop" S1 R50:130 L24.8 E3.0 ; Heaters M308 S0 P"bedtemp" Y"thermistor" T100000 B3950 R4700 ; configure sensor 0 as thermistor on pin bedtemp M950 H0 C"bedheat" T0 ; create bed heater output on bedheat and map it to sensor 0 M307 H0 B0 S1.00 ; disable bang-bang mode for the bed heater and set PWM limit M140 H0 ; map heated bed to heater 0 M143 H0 S120 ; set temperature limit for heater 0 to 120C M308 S1 P"e0temp" Y"thermistor" C7.060000e-8 B4725 ; configure sensor 1 as thermistor on pin e0temp M950 H1 C"e0heat" T1 ; create nozzle heater output on e0heat and map it to sensor 1 M307 H1 B0 S1.00 ; disable bang-bang mode for heater and set PWM limit M308 S2 Y"drivers" A"DRIVERS" ; configure sensor 2 as temperature warning and overheat flags on the TMC2660 on Duet M308 S3 Y"mcu-temp" A"MCU" ; configure sensor 3 MCU Temp ; Fans #M950 F0 C"e1heat" Q22500 ; create fan 0 on pin fan0 and set its frequency M950 F0 C"fan0" Q25 ; create fan 0 on pin fan0 and set its frequency M106 P0 C"Print" S0 H-1 ; set fan 0 name and value. Thermostatic control is turned off M950 F1 C"fan1" Q500 ; create fan 1 on pin fan1 and set its frequency M106 P1 C"Heat sink" S1 H1 T45 ; set fan 1 name and value. Thermostatic control is turned on M950 F2 C"!Fan2" Q500 ; create fan 1 on pin fan1 and set its frequency M106 P2 C"Chassi Fan" H2:3 X1 B0.5 T45:55 ; set fan 1 name and value. Thermostatic control is turned on ; Tools M563 P0 D0 H1 F0 ; 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 ; Custom settings are not defined ; Miscellaneous M912 P0 S-23 ; Set Temperature offset for MCU. M572 D0 S0.03 M501 ; load saved parameters from non-volatile memory; config-override.g file generated in response to M500 at 2021-04-26 10:02 ; This is a system-generated file - do not edit ; Delta parameters M665 L360.200:360.200:360.200 R179.882 H449.999 B150.0 X0.588 Y0.656 Z0.000 M666 X-0.901 Y0.716 Z0.185 A0.00 B0.00 ; Heater model parameters M307 H0 R0.558 C213.800:213.800 D1.60 S1.00 V24.5 B0 M307 H1 R2.250 C257.500:257.500 D8.70 S1.00 V24.4 B0 ; Workplace coordinates G10 L2 P1 X0.00 Y0.00 Z0.00 G10 L2 P2 X0.00 Y0.00 Z0.00 G10 L2 P3 X0.00 Y0.00 Z0.00 G10 L2 P4 X0.00 Y0.00 Z0.00 G10 L2 P5 X0.00 Y0.00 Z0.00 G10 L2 P6 X0.00 Y0.00 Z0.00 G10 L2 P7 X0.00 Y0.00 Z0.00 G10 L2 P8 X0.00 Y0.00 Z0.00 G10 L2 P9 X0.00 Y0.00 Z0.00 M486 S-1; bed.g ; called to perform automatic delta calibration via G32 ; ; generated by RepRapFirmware Configuration Tool v3.1.3 on Sun Jun 21 2020 17:39:49 GMT+0200 (Central European Summer Time) M561 ; clear any bed transform ; Probe the bed at 3 peripheral and 3 halfway points, and perform 6-factor auto compensation ; Before running this, you should have set up your Z-probe trigger height to suit your build, in the G31 command in config.g. G30 P0 X0 Y129.9 H0 Z-99999 G30 P1 X112.5 Y-64.95 H0 Z-99999 G30 P2 X-112.5 Y-64.95 H0 Z-99999 G30 P3 X0 Y64.9 H0 Z-99999 G30 P4 X56.21 Y-32.45 H0 Z-99999 G30 P5 X-56.21 Y-32.45 H0 Z-99999 G30 P6 X0 Y0 H0 Z-99999 S6 ; Use S-1 for measurements only, without calculations. Use S4 for endstop heights and Z-height only. Use S6 for full 6 factors ; If your Z probe has significantly different trigger heights depending on XY position, adjust the H parameters in the G30 commands accordingly. The value of each H parameter should be (trigger height at that XY position) - (trigger height at centre of bed)
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Soo, interesting. I decided to rerun delta calibration with a S8 instead of S6. And that made things better.
Difference between S8 and S6 appears to be tower tilt. Could I assume that somehow my frame has gotten warped?
