Klipper: Can't figure out how or where to change Stepper E-Steps values

[NickTom88]

After Finishing the updates I printed a calibration cube and my X and Y values are spot on but Z is about 19.6. Traditionally in Marlin I could change the E-Steps right on the controls or check my settings with M503 and adjust using M92. With Klipper I'm not able to do any of that. I also wasn't able to find ant values when searching the Config file. I looked through the FAQ and support docs and couldn't find anything that addressed this. Can anyone walk me through doing this?

[BlackStump]

https://github.com/KevinOConnor/klipper/blob/master/config/example.cfg#L36
https://github.com/KevinOConnor/klipper/blob/master/config/example.cfg#L75
https://github.com/KevinOConnor/klipper/blob/master/config/example.cfg#L87
https://github.com/KevinOConnor/klipper/blob/master/config/example.cfg#L101

https://github.com/KevinOConnor/klipper/blob/master/docs/Installation.md#configuring-klipper

[klipper-gitissuebot]

Hi @NickTom88,

It did not look like there was a Klipper log file attached to this ticket. The log file has been engineered to answer common questions the Klipper developers have about the software and its environment (software version, hardware type, configuration, event timing, and hundreds of other questions).

Unfortunately, too many people have opened tickets without providing the log. That consumes developer time; time that would be better spent enhancing the software. If this ticket references an event that has occurred while running the software then the Klipper log must be attached to this ticket. Otherwise, this ticket will be automatically closed in a few days.

For information on obtaining the Klipper log file see: https://github.com/KevinOConnor/klipper/blob/master/docs/Contact.md

The log can still be attached to this ticket - just add a comment and attach the log to that comment.

Best regards,
~ Your friendly GitIssueBot

PS: I'm just an automated script, not a human being.

[NickTom88]

To automated response - will try to attached justifiable log.

BlackStump - I see how Klipper identifies steps now. My problem is figuring out the formula to adjust the value. Any How-To I find just helps for marlin type values (X e-steps = 80.00) not now I'm trying to take a Z value of .0025 and adjust it for adjusting a 20mm cube where z is 19.6 but s/b 20. I'm lost on the formula. I don't see any conversations in any of those links you supplied and couldn't good one.

[BlackStump]

I think it would be
current step distance multiplied by actual measurement divided by wanted measurement

[theopensourcerer]

@NickTom88 Try this for calibration. A 20mm cube is pretty useless IMHO.

https://www.thingiverse.com/thing:2484766

[NickTom88]

BlackStump - that actually seems possible. Though it only changes the value from . 0025 to . 002551. I'll have to print it again when I get home from work with that value.

Theopensourcerer - I'm sure that would make x and y more accurate, but what about z? Which is my main issue. I mean if I wanted higher values I could just doubly the size of the cube to 40mm in theory.

[theopensourcerer]

@NickTom88 There is a calibration design for Z there too.

[NickTom88]

@theopensourcerer ahh I see it all now. As for the spreadsheet, how do I co about using the Klipper value? .0025 instead of 400.

[theopensourcerer]

To switch between marlin style step/mm to Klipper's mm/step simply:

1/klipper = marlin
1/marlin = klipper

[NickTom88]

@theopensourcerer I feel dumb for not realizing that. I could hug you.