Question about delta auto-cal results

fcwilt

Hi,

Being OC I've been working on getting my delta calibrated as well as possible.

I ran the auto-cal procedure three times and got these before and after numbers.

0.023 -> 0.019
0.025 -> 0.016
0.020 -> 0.018

A couple of questions:

Why does the 2nd run (just as example) not report 0.0019 -> 0.0016?

What could cause the 3rd run to report a worse result (the 0.018)?

Thanks.

Frederick

dc42

@fcwilt said in Question about delta auto-cal results:

Hi,

Being OC I've been working on getting my delta calibrated as well as possible.

I ran the auto-cal procedure three times and got these before and after numbers.

0.023 -> 0.019
0.025 -> 0.016
0.020 -> 0.018

A couple of questions:

Why does the 2nd run (just as example) not report 0.0019 -> 0.0016?

If the only geometrical errors in your build were things that auto calibration can correct for, then it would; but there are many other types of error that auto calibration can't correct for. See the list at https://duet3d.dozuki.com/Wiki/Calibrating_a_delta_printer#Section_Make_sure_your_build_is_accurate.

What could cause the 3rd run to report a worse result (the 0.018)?

Small differences in the height at which the probe triggered. If you are using the Smart Effector or a piezo, P8 in the M558 command may give slightly better results than P5.

fcwilt

@dc42

Thanks much!

Now how do I get rid of that "unsolved" marker on this topic?

Frederick

dc42

The solved/unsolved markers appear to have gone away today.

fcwilt

@dc42 said in Question about delta auto-cal results:

The solved/unsolved markers appear to have gone away today.

I just need to refresh the page in my browser.

All is good.

Frederick

dc42

@fcwilt said in Question about delta auto-cal results:

I just need to refresh the page in my browser.

Same here!

If you click on the Topic Tools button, you should be able to select Mark as Solved.

fcwilt

@dc42 said in Question about delta auto-cal results:

If you click on the Topic Tools button, you should be able to select Mark as Solved.

Found it - looked everywhere but there.

Thanks.

Frederick