BED_MESH_CALIBRATE "Manual Probe failed" error on first point ACCEPT

General Discussion
1

Trying to use BED_MESH_CALIBRATE and this is what I get. I’m working on the premise that after adjusting the first point you should type ACCEPT to go to the next point, right?

===================================================
Send: BED_MESH_CALIBRATE
Recv: // Starting manual Z probe. Use TESTZ to adjust position.
Recv: // Finish with ACCEPT or ABORT command.
Recv: // Z position: ??? → 5.001 ← ???
Recv: ok
[…]
Send: TESTZ Z=+1
Recv: // Z position: 5.001 → 6.001 ← ???
Recv: ok
[…]
Send: TESTZ Z=+1
Recv: // Z position: 6.001 → 7.001 ← ???
Recv: ok
[…]
Send: ACCEPT
Recv: // Manual probe failed! Use TESTZ commands to position the
Recv: // nozzle prior to running ACCEPT.

Here is my config:

======================================================

This file contains a configuration for the "Anycubic Kossel Linear

Plus Large Printing Size", "Anycubic Kossel Pulley Plus Large

Printing Size" and similar delta printer from 2017.

The Anycubic delta printers use the TriGorilla board which is an

AVR ATmega2560 Arduino + RAMPS compatible board.

To use this config, the firmware should be compiled for the AVR atmega2560.

See docs/Config_Reference.md for a description of parameters.

[stepper_a]
step_pin: PF0
dir_pin: !PF1
enable_pin: !PD7
microsteps: 16
rotation_distance: 40
endstop_pin: ^PE4
homing_speed: 60

The next parameter needs to be adjusted for

your printer. You may want to start with 280

and meassure the distance from nozzle to bed.

This value then needs to be added.

position_endstop: 298.70
arm_length: 268.0

[stepper_b]
step_pin: PF6
dir_pin: !PF7
enable_pin: !PF2
microsteps: 16
rotation_distance: 40
endstop_pin: ^PJ0

[stepper_c]
step_pin: PL3
dir_pin: !PL1
enable_pin: !PK0
microsteps: 16
rotation_distance: 40
endstop_pin: ^PD2

[extruder]
step_pin: PA4
dir_pin: !PA6
enable_pin: !PA2
microsteps: 16
rotation_distance: 33.333
nozzle_diameter: 0.400
filament_diameter: 1.750
heater_pin: PB4
sensor_type: EPCOS 100K B57560G104F
sensor_pin: PK5
control: pid
pid_Kp: 25.349
pid_Ki: 1.216
pid_Kd: 132.130
min_extrude_temp: 150
min_temp: 0
max_temp: 275

[heater_bed]
heater_pin: PH5
sensor_type: EPCOS 100K B57560G104F
sensor_pin: PK6
control: pid
pid_kp: 73.517
pid_ki: 1.132
pid_kd: 1193.728
min_temp: 0
max_temp: 130

[fan]
pin: PH6
kick_start_time: 0.200

[heater_fan extruder_cooler_fan]
pin: PL5

if you want to use your probe for DELTA_CALIBRATE you will need that

#[probe]
#pin: ^PD3
#z_offset: 15.9
#samples: 3

[mcu]
serial: /dev/serial/by-id/usb-Silicon_Labs_CP2102_USB_to_UART_Bridge_Controller_0001-if00-port0

[printer]
kinematics: delta
max_velocity: 500
max_accel: 3000
max_z_velocity: 200
delta_radius: 115

if you want to DELTA_CALIBRATE you may need that

#minimum_z_position: -5

[idle_timeout]
timeout: 360

[delta_calibrate]
radius: 115

If the original probe is used

#horizontal_move_z: 20

“RepRapDiscount 2004 Smart Controller” type displays

[display]
lcd_type: hd44780
rs_pin: PH1
e_pin: PH0
d4_pin: PA1
d5_pin: PA3
d6_pin: PA5
d7_pin: PA7
encoder_pins: ^PC6, ^PC4
click_pin: ^!PC2
kill_pin: ^!PG0

[bed_mesh]
speed: 50
horizontal_move_z: 5
mesh_radius: 115
mesh_origin: 0, 0
round_probe_count: 5
mesh_pps: 2, 2
algorithm: lagrange
move_check_distance: 5
split_delta_z: .025

Its a delta printer.

2

Hello @emailcraigs !

Could you please upload complete files?
In the moment it looks quite messy and due to the formatting, some characters are gone.

3

Complete files attached.
printer.cfg (2.6 KB)
Terminal commands and error.txt (481 Bytes)

4

Make sure:

  • that the nozzle is well above the bed when you start the calibration
  • that the endstop is not triggered when you start
  • that you always descend to the bed
5

I’m using a delta so after G28 it is at the top of the build area. From there executing the BED_MESH_CALIBRATION command brings the head straight down to the center and then it moves towards the front of the hotbed to the first datapoint for TESTZ manipulation. The only thing I see weird is that it appears to drop as it moves forward even though my bed is level and my z-stop is configured for the 0,0 middle point of my round bed. How would I insure the end stop is not triggered when I start the BED_MESH_CALIBRATION command?

6

With a delta (homing to the top of the towers) the endstop should not play a role. They should not be triggered during the calibration process

#minimum_z_position: -5 should most likely not be commented for the calibration process.

7

BINGO! I needed to uncomment that line. I had changed my position endstop for my 0,0 center but apparently it needs to be higher in order for BED_MESH_CALIBRATE to run correctly, but lower would not allow me to stay in range during calibration. That command gave me the room I needed. I didn’t surmise that that command had anything to do with leveling as it was called out for DELTA_CALIBRATE. Thanks!