# How to speed up Z_Tilt?

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
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
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
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
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
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
``````

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

``````

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

Hi,
sorry for my englishâ€¦

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 â€śpushâ€ť 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 â€śrelaxedâ€ť position with an triangle ruler. They have to be 90Â°
• Power on your Steppers (Homing on X and Y)

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

1 Like

Thank you, Iâ€™ll give those suggestions a go.

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

1 Like

Puhâ€¦
Thatâ€™s a nice Setup! Think you are not the one to check the 90Â° angelsâ€¦

Maybe you can use some Shims to get the Bed on one side higherâ€¦
Iâ€™m still thinking that could be a solutionâ€¦

Looking forward to hear if you find a solution.

1 Like

Cheers, itâ€™s been a while since I checked everything for squareness and angles. So Iâ€™ll definitely do that.

Iâ€™m going on family vacation in 12 hours, so I wonâ€™t be able to check it until I return in about 6 days.

1 Like

I finally got around to checking this â€¦ and you were right. Turned out my bed wasnâ€™t mounted level to the bed carrier.

Iâ€™d used nylon spacers (in an attempt to protect the PCB heater from rubbing on the Aluminium spacers) that appear to have changed thickness with heat. After removing them, the issue is resolved and even when intentionally un-levelled, it only takes ~3 attempts to level the gantry.

2 Likes

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