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Test cube -Z axis issue

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Mad_Voyager

(@mad_voyager)

New Member

Test cube -Z axis issue

Hi community

Need your help.

I searched a lot but could not find an answer to my question

I built my first Prusa MK3S+ and it is great machine! The printer was assembled correctly and all tests passed successfully.

I have made and printed many test cubes (20X20) to check printer.

Print with Prusa silver PLA (215/60), print using another manufacture. X and Y are about Ok (20.04 and 20.02)

But… Z axis is 20.30mm. I used two different calipers with same result. I checked everything possible.

I downloaded the Precisio Cube STL 40X40, slice it using the Vase mode and received extrusion width 0.45

Is the 20.30mm normal for the Z axis? I am not familiar with G code, and can anybody explain what shell I do?

Any ideas?

Please HELP

Posted : 26/02/2021 5:25 pm

Dan Rogers

(@dan-rogers)

Noble Member

RE: Test cube -Z axis issue

I'm thinking Layer height multiples. Your first layer (default) at .3mm draft is .2mm, so second layer is .5 high, then .8, then 1.1, 1.4, 1.7, 2.0, 2.3, 2.6, 2.9, 3.2, 3.5, 3.8, 4.1 ...

So if you are looking for perfect height to the MM, try printing at .1mm for best shot at hitting the height you want.

Posted : 26/02/2021 5:36 pm

Peter M

(@peter-m)

Noble Member

RE: Test cube -Z axis issue

Is your first layer low enough?

is the underside of cube flat without holes?

Posted : 27/02/2021 2:38 am

Mad_Voyager

(@mad_voyager)

New Member

Topic starter answered:

RE: Test cube -Z axis issue

@dan-rogers

Thank you for your response.

I reprinted the test cube
The first layer is 0.2 mm, then 0.1 mm. the result is the same. 20.24 mm. I used a reliable micrometer
As I understand, I can change the number of steps by mm using the M92 Zxxx.xxx command with the new data that I have calculated.
Please tell me how to send a command to the printer

Thank you an advanced

Posted : 27/02/2021 10:40 am

Mad_Voyager

(@mad_voyager)

New Member

Topic starter answered:

RE: Test cube -Z axis issue

@peter-m-3

The first layer is 0.2 mm, then 0.1 mm. the result is the same. 20.24 mm ((

Posted : 27/02/2021 10:41 am

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