Problems with screws_tilt_calculate

General Discussion
1

Basic Information:

Printer Model: Ender 3v2
MCU / Printerboard:4.2.2
Host / SBC PI 3

printer.cfg (2.9 KB)

klippy.log

klippy (4).log (1.5 MB)

…Hi ,
I setup up the parameter for screws_tilt_calculate.
then i start the comand:
it happens: Z goes to 50,
printer moves to screw1 position,

probe comes out, printer goes down,

probe contacts and goes in, printer moves down until it stopps.

I tried it with the command probe→ the same behavoir,
then I tried in Z postion 200, the pin comes out, I touched it and it stops mms later.

I just made it again with bed_mesh_calibrate. the same, it crashes into the bed…

what is wrong?

thx

Dirk

p.s. The Homing is working….

2

Do you have a genuine BLtouch or a clone?
If the latter one, you may read here: BL-Touch - Klipper documentation

3

I have the CR touch (black housing) from ali

4

So you may read the notes in the link in my last post.

5

I now have the following settings:

bltouch

sensor_pin: ^PB1
control_pin: PB0
x_offset: -42
y_offset: -10
z_offset: 0

Note: You will set the z_offset later via the web interface (PROBE_CALIBRATE)

probe_with_touch_mode: True
pin_up_touch_mode_reports_triggered: False
stow_on_each_sample: False
speed: 3 # Slower measurement speed (mm/s)
lift_speed: 10 # Faster lift
samples: 2 # Measures twice for greater accuracy
samples_result: average
sample_retract_dist: 5.0 # Moves up 5mm after the first contact
pin_move_time: 0.680

(This was a recommendation from Google AI)

After a successful G28, I start the Command
screws_tilt_calculate

After that, it moves cleanly to where it should.

Then the pen retracts and it continues moving slowly and steadily.

The pen shifts and the Z-motor continues moving…

I previously had Marlin, and everything worked fine.

No function works here: Probe, bed_mesh_calibrate, etc.

Manual testing (QUERY_PROBE) works without any problems.

6

Please, when uploading code, use the Preformatted text feature of the forum editor. There might be errors in what you posted.
Format

1 Like
7

I now have the following settings:

[bltouch]

sensor_pin: ^PB1
control_pin: PB0
x_offset: -42
y_offset: -10
z_offset: 0

#Note: You will set the z_offset later via the web interface (PROBE_CALIBRATE)

probe_with_touch_mode: True
pin_up_touch_mode_reports_triggered: False
stow_on_each_sample: False
speed: 3 # Slower measurement speed (mm/s)
lift_speed: 10 # Faster lift
samples: 2 # Measures twice for greater accuracy
samples_result: average
sample_retract_dist: 5.0 # Moves up 5mm after the first contact
pin_move_time: 0.680

(This was a recommendation from Google AI)

After a successful G28, I start the Command
screws_tilt_calculate

After that, it moves cleanly to where it should.

Then the pen retracts and it continues moving slowly and steadily.

The pen shifts and the Z-motor continues moving…

I previously had Marlin, and everything worked fine.

No function works here: Probe, bed_mesh_calibrate, etc.

Manual testing (QUERY_PROBE) works without any problems.

(Sorry I cannot edit the last post)

I have no idea, what I can do. Everytime the whole portal is moving…

1 Like
8

I found the problem:

I switched of the printer, but the cr touch was still iluminated.

Cause the 5V comes via USB from the raspberry, so cut the 5V (red one)

Now it is working

First with a little bit of Styrofoam under the pin.

that was working..
Now I started in reality.
The same as before. connecting to the bed.

Could be that there is a problem of the length of the probe?

  • Next Day:
    I put some plastik sheet between the mounting braked and the sensor.
    Then I started the measuring again. and it is working now.
1 Like