How to speed up Z_Tilt?

General Discussion
1

My printer works fine, but I was wondering if there is a way to improve the speed of the Z_Tilt process. It usually takes 4-6 tries to get the gantry level to within 0.1mm.

Is the calculation just really conservative, or is this normal?

7:44 pm
Retries: 4/10 Probed points range: 0.082500 tolerance: 0.100000
7:44 pm
Making the following Z adjustments:
stepper_z = -0.103450
stepper_z1 = -0.030059
7:44 pm
probe at 177.950,32.997 is z=3.859123
7:44 pm
probe at 177.950,32.997 is z=3.859123
7:44 pm
probe at 177.950,32.997 is z=3.851623
7:44 pm
probe at -11.997,32.997 is z=3.779123
7:44 pm
probe at -11.997,32.997 is z=3.776623
7:44 pm
probe at -11.997,32.997 is z=3.766623
7:44 pm
Retries: 3/10 Probed points range: 0.165000 tolerance: 0.100000
7:44 pm
Making the following Z adjustments:
stepper_z = -0.089123
stepper_z1 = 0.057696
7:44 pm
probe at 177.950,32.997 is z=3.889937
7:44 pm
probe at 177.950,32.997 is z=3.887437
7:44 pm
probe at 177.950,32.997 is z=3.879937
7:44 pm
probe at -11.997,32.997 is z=3.722437
7:44 pm
probe at -11.997,32.997 is z=3.729937
7:44 pm
probe at -11.997,32.997 is z=3.722437
7:44 pm
Retries: 2/10 Probed points range: 0.267500 tolerance: 0.100000
7:44 pm
Making the following Z adjustments:
stepper_z = -0.102437
stepper_z1 = 0.135576
7:44 pm
probe at 177.950,32.997 is z=3.971468
7:44 pm
probe at 177.950,32.997 is z=3.971468
7:44 pm
probe at 177.950,32.997 is z=3.961468
7:44 pm
probe at -11.997,32.997 is z=3.703968
7:43 pm
probe at -11.997,32.997 is z=3.703968
7:43 pm
probe at -11.997,32.997 is z=3.693968
7:43 pm
Retries: 1/10 Probed points range: 0.467500 tolerance: 0.100000
7:43 pm
Making the following Z adjustments:
stepper_z = -0.148968
stepper_z1 = 0.266967
7:43 pm
probe at 177.950,32.997 is z=4.164896
7:43 pm
probe at 177.950,32.997 is z=4.159896
7:43 pm
probe at 177.950,32.997 is z=4.152396
7:43 pm
probe at -11.997,32.997 is z=3.692396
7:43 pm
probe at -11.997,32.997 is z=3.694896
7:43 pm
probe at -11.997,32.997 is z=3.687396
7:43 pm
Retries: 0/10 Probed points range: 0.710000 tolerance: 0.100000
7:43 pm
Making the following Z adjustments:
stepper_z = -0.324896
stepper_z1 = 0.306814
7:43 pm
probe at 177.950,32.997 is z=4.360000
7:43 pm
probe at 177.950,32.997 is z=4.362500
7:43 pm
probe at 177.950,32.997 is z=4.360000
7:43 pm
probe at -11.997,32.997 is z=3.650000
7:43 pm
probe at -11.997,32.997 is z=3.650000
7:43 pm
probe at -11.997,32.997 is z=3.645000
7:43 pm
Z_TILT_ADJUST

Here is my config:

[z_tilt]
speed: 200
z_positions:
 29,35
 198,35
points:
 -12,33 # left probe
  177.95,33  # right probe
retries: 10
retry_tolerance: 0.1
horizontal_move_z: 10
2

So this is normal for a Dual 8mm pitch Lead-screw equipped BedSlinger?

3

Hi,
sorry for my english… :grimacing:

If this happens every time ist looks like your Bed is not leveled absolute parallel to your X-Gantry. (left side too low)

The Z_TILT_ADJUST “push” the X-Gantry mechanically parallel to your Bed. When the Steppers are powered off and the printer Materials are cooling down and are relaxing the mechanical forces relax again in their build-position and maybe the Gantry is out of angle again.

  • Check the Angles of your Gantry in a “relaxed” position with an triangle ruler. They have to be 90°
  • Power on your Steppers (Homing on X and Y)
  • Level your Bed in that “relaxed” position of your Gantry.

Maybe that should help to get that Adjustment in fewer Steps.
Schuessel

1 Like
4

Thank you, I’ll give those suggestions a go.

My bed should be reasonably level as it’s rigidly mounted using aluminum mounts and spacers, that I made in my CNC machine, + linear rails.

IMG_8374
IMG_83744032Ă—3024 2.62 MB

IMG_8375
IMG_83754032Ă—3024 2.31 MB

IMG_8647
IMG_86473024Ă—4032 2.54 MB

1 Like
5

Puh…
That’s a nice Setup! Think you are not the one to check the 90° angels… :smile: :upside_down_face:

Maybe you can use some Shims to get the Bed on one side higher…
I’m still thinking that could be a solution…

Looking forward to hear if you find a solution.

1 Like
6

Cheers, it’s been a while since I checked everything for squareness and angles. So I’ll definitely do that.

I’m going on family vacation in 12 hours, so I won’t be able to check it until I return in about 6 days.

1 Like