Rotary delta calibration not implemented?

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

Orang_

@Phaedrux said in Rotary delta calibration not implemented?:

@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

The printer behaves the same way only with delta calibration and mesh compensation, no problems with printing and moving, I do not think the problem is microstepping but I can try

jay_s_uk

@Orang_ yea, I really wouldn't run anything higher than x16 on an LPC

Phaedrux

@Orang_ said in Rotary delta calibration not implemented?:

only with delta calibration and mesh compensation

Yes, and it's the quick movements to raise Z after probing that it's skipping, and those moves would be generating the most step pulses. The hiccups are indicating an issue caused by too high microstepping values.

If this isn't the problem I'll be surprised.

Orang_

@Phaedrux said in Rotary delta calibration not implemented?:

@Orang_ said in Rotary delta calibration not implemented?:

only with delta calibration and mesh compensation

Yes, and it's the quick movements to raise Z after probing that it's skipping, and those moves would be generating the most step pulses. The hiccups are indicating an issue caused by too high microstepping values.

If this isn't the problem I'll be surprised.

M350 X16 Y16 Z16 E16 
M92 X440.375 Y440.375 Z440.375 E440.375

does not solve the problem(((
How to reduce the speed of movement during calibration