Rotary delta calibration not implemented?

[Orang_]

Hi, I have a Rotary delta. When I try to calibrate, the printer behaves strangely, goes down to measure and immediately jerks to the side. Maybe I should attach a video but I don't know how(

[Phaedrux]

You can attach a short MP4 video to a post, or you can upload a video to dropbox, or google drive, or youtube, or vimeo, or something like that.

Can you please also give us some more information about your setup? What duet board, firmware version, include your config.g, homedelta.g, bed.g.

Have you gone over your printer mechanics?

Have you seen these?

https://duet3d.dozuki.com/Wiki/Configuring_RepRapFirmware_for_a_Rotary_Delta

https://duet3d.dozuki.com/Wiki/Calibrating_a_delta_printer

[Orang_]

; bed.g
; called to perform automatic delta calibration via G32
;
; generated by RepRapFirmware Configuration Tool v3.2.1 on Mon Jan 11 2021 22:12:55 GMT+0200 (Восточная Европа, стандартное время)
M561 ; clear any bed transform
G28
G30 P0 X0.00 Y80.00 Z-99999 H33.385
G30 P1 X69.28 Y-40.00 Z-99999 H33.385
G30 P2 X-69.28 Y-40.00 Z-99999 H33.385
G30 P3 X0.00 Y40.00 Z-99999 H33.385
G30 P4 X34.64 Y-20.00 Z-99999 H33.385
G30 P5 X-34.64 Y-20.00 Z-99999 H33.385
G30 P6 X0 Y0 Z-99999 S6
 

[Orang_]

; General preferences
G90                                            ; send absolute coordinates...
M83                                            ; ...but relative extruder moves
M550 P"Orang_"                                 ; set printer name
;M669 K10 Uxx    Lxx  Rrr    Aaa: bb Hxx
M669 K10 U170 L319 R55.94 A-45:52 B135 H439.2 X-60,Y60,Z180
M666 X-1.2 Y-0.7 Z1.4
 
; Drives
M569 P0 S1                                     ; physical drive 0 goes forwards using default driver timings |D3 stealthChop2
M569 P1 S1                                     ; physical drive 1 goes forwards using default driver timings
M569 P2 S1                                     ; physical drive 2 goes forwards using default driver timings 
M569 P3 S0                                     ; physical drive 3 goes forwards using default driver timings
M584 X0 Y1 Z2 E3                               ; set drive mapping
M350 X64 Y64 Z64 E64                           ; configure microstepping with interpolation
M92 X1761.5 Y1761.5 Z1761.5 E1488.59              ; set steps per mm
M566 X1200.00 Y1200.00 Z1200.00 E1200.00       ; set maximum instantaneous speed changes (mm/min)
M203 X18000.00 Y18000.00 Z18000.00 E1200.00    ; set maximum speeds (mm/min)
M201 X500.00 Y500.00 Z500.00 E1000.00       ; set accelerations (mm/s^2)
M906 X700 Y700 Z700 E600                       ; set motor currents (mA) and motor idle factor in per cent
M84 S30                                        ; Set idle timeout
 
; Axis Limits
M208 Z-2:270                                  ; set minimum Z
 
; Endstops
M574 X2 S1 P"!xstopmax"                            ; configure active-high endstop for low end on X via pin xstop
M574 Y2 S1 P"!ystopmax"                            ; configure active-high endstop for low end on Y via pin ystop
M574 Z2 S1 P"!zstopmax"                            ; configure active-high endstop for low end on Z via pin zstop
 
; Z-Probe
M558 P5 C"^zstop" H5 F120 T2000 X0 Y0 Z1   
M557 R80 S20                                   ; define mesh grid
G31 X0 Y0 Z33.385 P25
 
; Tools
M563 P0 D0 H1 F0                               ; define tool 0
G10 P0 X0 Y0 Z                               ; set tool 0 axis offsets
G10 P0 R0 S0                                   ; set initial tool 0 active and standby temperatures to 0C
 
M563 P2 S"2rr" D0 H1 F0                     ; define tool 2
G10 P2 X0 Y0 Z-23.3                                ; set tool 2 axis offsets
G10 P2 R0 S0  
 
M563 P5 S"TEST" D0 H1 F0                     ; define tool 2
G10 P2 X0 Y0 Z-29.3                                ; set tool 2 axis offsets
G10 P2 R0 S0  
 
; Custom settings are not defined
 
; Miscellaneous
T2
M575 P1 B57600 S0

[Orang_]

RepRapFirmware 3.2-RC2 Port for LPC
Have you gone over your printer mechanics? - Yes
"
https://duet3d.dozuki.com/Wiki/Configuring_RepRapFirmware_for_a_Rotary_Delta

https://duet3d.dozuki.com/Wiki/Calibrating_a_delta_printer
" - yes

[Phaedrux]

Moved to the LPC port forum since that may be relevant.

Can you also send M98 P"config.g" and post the results?

Also your homedelta.g?

[Orang_]

; homedelta.g
 
G91                        ; relative positioning
G1 H1 X265 Y265 Z265 F1800 ; move all towers to the high end stopping at the endstops (first pass)
G1 H2 X-5 Y-5 Z-5 F1800    ; go down a few mm
G1 H1 X10 Y10 Z10 F360     ; move all towers up once more (second pass)
;G1 Z-5 F1000               ; move down a few mm so that the nozzle can be centred
G90                        ; absolute positioning
 

[Orang_]

M98 P "config.g"
Warning: Macro file "config.g" not found

[Phaedrux]

@Orang_ said in Rotary delta calibration not implemented?:

M98 P "config.g"

Was there a space between the P and " when you sent the command?

[Orang_]

@Phaedrux

M98 P"config.g"
HTTP is enabled on port 80
FTP is disabled
TELNET is disabled

[Phaedrux]

Thanks. I'm afraid that's the extent of my delta knowledge and I know even less about the LPC port.

A video may help and the results of M122 never hurt.

Is RC2 the latest for the LPC port, or can you update to 3.2 final?

[Orang_]

@Phaedrux https://drive.google.com/file/d/1xEPkmPwHct_ov90Fp8C5e6YM0wNrkLN9/view?usp=sharing

[Orang_]

@Phaedrux said in Rotary delta calibration not implemented?:

RC2 the latest for the LPC port, or can you update to 3.2 final?

yes, i can

[Phaedrux]

From your video is seems like it's triggering the probe, but then skipping steps on one arm when it tries to return to the dive height causing it to lurch.

Are you sure there's no slipping grub screw or something like that?

[Orang_]

@Orang_

	M122
=== Diagnostics ===
RepRapFirmware for LPC176x based Boards (biquskr_1.3) version 3.2-beta4.1_1 running on LPC176x at 100Mhz
Used output buffers: 3 of 16 (11 max)
=== RTOS ===
Static ram: 5044
Dynamic Memory (RTOS Heap 5): 2056 free, 1992 never used
Never used RAM 80, free system stack 6 words
Tasks: NETWORK(blocked,196) HEAT(blocked,242) MAIN(running,353) IDLE(ready,20)
Owned mutexes: WiFi(NETWORK)
=== Platform ===
Last reset 00:55:21 ago, cause: [software]
Last software reset at 2021-01-11 22:25, reason: User, GCodes spinning, available RAM 256, slot 1
Software reset code 0x0003 HFSR 0x00000000 CFSR 0x00000000 ICSR 0x00428000 BFAR 0xe000ed38 SP 0xffffffff Task MAIN
Error status: 0x00
Supply voltage: under voltage events: 0
Driver 0: position 43414, no-driver-detected
Driver 1: position 43808, no-driver-detected
Driver 2: position 41828, no-driver-detected
Driver 3: position 0, no-driver-detected
Driver 4: position 0
Driver 5: position 0
Driver 6: position 0
Date/time: 2021-01-11 23:20:45
Slowest loop: 95.26ms; fastest: 0.12ms
Step timer: target 2615712365 count 3321023289 delta -705310924 late 0
USBSerial connected 0
ADC not ready 2 ADC error threshold 10 ADC Init 1
Ints: 0; Calls 0; fast: 4294967295uS; slow 0uS adj 0 bad 0 big delta 0
PWM Channels
Delta -1446546330 Start -1 End -1
=== Storage ===
Free file entries: 4
SD card 0 detected
SD card longest read time 5.7ms, write time 5.3ms, max retries 0
=== Move ===
FreeDm 100 (min 97), maxWait 1181857ms, bed compensation in use: none, comp offset 0.000
=== DDARing ===
Scheduled moves 91, completed moves 91, hiccups 39525, stepErrors 0, LaErrors 0, Underruns [0, 0, 2], CDDA state -1
=== Heat ===
Bed heaters = 0, chamberHeaters = -1
Heater 1 is on, I-accum = 0.0
=== GCodes ===
Segments left: 0
Movement lock held by null
HTTP is idle in state(s) 0
File is idle in state(s) 0
USB is idle in state(s) 0
Aux is idle in state(s) 0
Trigger is idle in state(s) 0
Queue is idle in state(s) 0
Daemon is idle in state(s) 0
Autopause is idle in state(s) 0
Code queue is empty.
=== Network ===
Slowest loop: 322.64ms; fastest: 0.00ms
Responder states: HTTP(2) HTTP(0)
HTTP sessions: 1 of 2
- WiFi -
Network state is active
WiFi module is connected to access point 
Failed messages: pending 0, notready 0, noresp 0
WiFi firmware version 1.25B0-01L-D
WiFi MAC address e0:3f:49:23:39:c4
WiFi Vcc 2.93, reset reason Turned on by main processor
WiFi flash size 4194304, free heap 35560
WiFi IP address 192.168.1.97
WiFi signal strength -55dBm, mode 802.11n, reconnections 0, sleep mode modem
Clock register 00181001
Socket states: 0 0

[jay_s_uk]

There should be no differences between the LPC port and the normal version in terms of kinematics etc that I'm aware of. There are some other restrictions but that's mainly due to memory.

[jay_s_uk]

You can upgrade to 3.2 final from here https://github.com/gloomyandy/RepRapFirmware/releases/tag/v3.2_1

[Orang_]

@Phaedrux said in Rotary delta calibration not implemented?:

From your video is seems like it's triggering the probe, but then skipping steps on one arm when it tries to return to the dive height causing it to lurch.

Are you sure there's no slipping grub screw or something like that?

it happens only with delta calibration and mesh compensation, with normal use it is not observed

[Orang_]

RepRapFirmware 3.2 does not solve the problem(((

[Phaedrux]

@Orang_ said in Rotary delta calibration not implemented?:

M350 X64 Y64 Z64 E64 ; configure microstepping with interpolation M92 X1761.5 Y1761.5 Z1761.5 E1488.59 ; set steps per mm

Pardon my ignorance on the LPC port, but perhaps you can try using x16 microstepping to get a baseline?

I notice in your M122 there are a lot of hiccups which can mean skipped steps, so reducing the microstepping could help

hiccups 39525