Does auto leveling result in sheared prints?

Clash Royale CLAN TAG#URR8PPP

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I asked this question as a small question under an answer of another question (How bed leveling is achieved without table screws?), but have been asked to post this as a separate question to answer it with more detail conform SE policy.

---

One question to the auto leveling: If the bed is tilted and the auto leveling measured this and then the printer adjust the z axis over the position on the bed, will a x-y-point on the first layer be located exactly under the (in model) same x-y-point in a higher layer, or will it be shifted to? I mean, if the bed is 1 mm lower on one side over 10 cm then a top corner of a 10-cm-cube should be also 1 mm shifted, so that the cube still is real cubic and not sheared.

bed-leveling

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edited 5 hours ago

0scar

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Horitsu

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up vote
3
down vote

favorite

I asked this question as a small question under an answer of another question (How bed leveling is achieved without table screws?), but have been asked to post this as a separate question to answer it with more detail conform SE policy.

---

One question to the auto leveling: If the bed is tilted and the auto leveling measured this and then the printer adjust the z axis over the position on the bed, will a x-y-point on the first layer be located exactly under the (in model) same x-y-point in a higher layer, or will it be shifted to? I mean, if the bed is 1 mm lower on one side over 10 cm then a top corner of a 10-cm-cube should be also 1 mm shifted, so that the cube still is real cubic and not sheared.

bed-leveling

share|improve this question

edited 5 hours ago

0scar

4,9981834

asked 10 hours ago

Horitsu

3929

add a comment | 

up vote
3
down vote

favorite

up vote
3
down vote

favorite

I asked this question as a small question under an answer of another question (How bed leveling is achieved without table screws?), but have been asked to post this as a separate question to answer it with more detail conform SE policy.

---

One question to the auto leveling: If the bed is tilted and the auto leveling measured this and then the printer adjust the z axis over the position on the bed, will a x-y-point on the first layer be located exactly under the (in model) same x-y-point in a higher layer, or will it be shifted to? I mean, if the bed is 1 mm lower on one side over 10 cm then a top corner of a 10-cm-cube should be also 1 mm shifted, so that the cube still is real cubic and not sheared.

bed-leveling

share|improve this question

edited 5 hours ago

0scar

4,9981834

asked 10 hours ago

Horitsu

3929

I asked this question as a small question under an answer of another question (How bed leveling is achieved without table screws?), but have been asked to post this as a separate question to answer it with more detail conform SE policy.

---

One question to the auto leveling: If the bed is tilted and the auto leveling measured this and then the printer adjust the z axis over the position on the bed, will a x-y-point on the first layer be located exactly under the (in model) same x-y-point in a higher layer, or will it be shifted to? I mean, if the bed is 1 mm lower on one side over 10 cm then a top corner of a 10-cm-cube should be also 1 mm shifted, so that the cube still is real cubic and not sheared.

bed-leveling

bed-leveling

share|improve this question

edited 5 hours ago

0scar

4,9981834

asked 10 hours ago

Horitsu

3929

share|improve this question

edited 5 hours ago

0scar

4,9981834

asked 10 hours ago

Horitsu

3929

share|improve this question

share|improve this question

edited 5 hours ago

0scar

4,9981834

edited 5 hours ago

0scar

4,9981834

edited 5 hours ago

0scar

4,9981834

4,9981834

asked 10 hours ago

Horitsu

3929

asked 10 hours ago

Horitsu

3929

asked 10 hours ago

Horitsu

3929

3929

add a comment | 

add a comment | 

1 Answer
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Using automatic bed leveling assists you in getting the print to stick better to the build platform as a result of the print head following the un-uniform geometry or tilt of the build plate.

In, e.g. Marlin Firmware, the bed level correction is fading out over a predefined distance, this is determined by the constant #define ENABLE_LEVELING_FADE_HEIGHT in the printer firmware Configuration.h file and the height can be set with M420 Z<height> (see here).

M420 S1 ; Enable compensation using current grid/mesh
M420 Z10 ; Gradually reduce compensation until Z=10

Yes, a cube will not be perfectly cubic, that is why even with auto bed leveling you need to provide a bed as level as possible, it only should correct for very small deviations.

When the print is smaller than the fade out height, you would indeed get a sheared print, if larger, then the top of the print would be level with respect to the reference plane. Note that that still can be skew if the printer is improperly calibrated (e.g. when using 2 Z steppers or misalignment of the height on either side).

share|improve this answer

edited 6 hours ago

answered 9 hours ago

0scar

4,9981834

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1 Answer
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active

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votes

1 Answer
1

active

oldest

votes

active

oldest

votes

active

oldest

votes

up vote
4
down vote

Using automatic bed leveling assists you in getting the print to stick better to the build platform as a result of the print head following the un-uniform geometry or tilt of the build plate.

In, e.g. Marlin Firmware, the bed level correction is fading out over a predefined distance, this is determined by the constant #define ENABLE_LEVELING_FADE_HEIGHT in the printer firmware Configuration.h file and the height can be set with M420 Z<height> (see here).

M420 S1 ; Enable compensation using current grid/mesh
M420 Z10 ; Gradually reduce compensation until Z=10

Yes, a cube will not be perfectly cubic, that is why even with auto bed leveling you need to provide a bed as level as possible, it only should correct for very small deviations.

When the print is smaller than the fade out height, you would indeed get a sheared print, if larger, then the top of the print would be level with respect to the reference plane. Note that that still can be skew if the printer is improperly calibrated (e.g. when using 2 Z steppers or misalignment of the height on either side).

share|improve this answer

edited 6 hours ago

answered 9 hours ago

0scar

4,9981834

add a comment | 

up vote
4
down vote

Using automatic bed leveling assists you in getting the print to stick better to the build platform as a result of the print head following the un-uniform geometry or tilt of the build plate.

In, e.g. Marlin Firmware, the bed level correction is fading out over a predefined distance, this is determined by the constant #define ENABLE_LEVELING_FADE_HEIGHT in the printer firmware Configuration.h file and the height can be set with M420 Z<height> (see here).

M420 S1 ; Enable compensation using current grid/mesh
M420 Z10 ; Gradually reduce compensation until Z=10

Yes, a cube will not be perfectly cubic, that is why even with auto bed leveling you need to provide a bed as level as possible, it only should correct for very small deviations.

When the print is smaller than the fade out height, you would indeed get a sheared print, if larger, then the top of the print would be level with respect to the reference plane. Note that that still can be skew if the printer is improperly calibrated (e.g. when using 2 Z steppers or misalignment of the height on either side).

share|improve this answer

edited 6 hours ago

answered 9 hours ago

0scar

4,9981834

add a comment | 

up vote
4
down vote

up vote
4
down vote

Using automatic bed leveling assists you in getting the print to stick better to the build platform as a result of the print head following the un-uniform geometry or tilt of the build plate.

In, e.g. Marlin Firmware, the bed level correction is fading out over a predefined distance, this is determined by the constant #define ENABLE_LEVELING_FADE_HEIGHT in the printer firmware Configuration.h file and the height can be set with M420 Z<height> (see here).

M420 S1 ; Enable compensation using current grid/mesh
M420 Z10 ; Gradually reduce compensation until Z=10

Yes, a cube will not be perfectly cubic, that is why even with auto bed leveling you need to provide a bed as level as possible, it only should correct for very small deviations.

When the print is smaller than the fade out height, you would indeed get a sheared print, if larger, then the top of the print would be level with respect to the reference plane. Note that that still can be skew if the printer is improperly calibrated (e.g. when using 2 Z steppers or misalignment of the height on either side).

share|improve this answer

edited 6 hours ago

answered 9 hours ago

0scar

4,9981834

Using automatic bed leveling assists you in getting the print to stick better to the build platform as a result of the print head following the un-uniform geometry or tilt of the build plate.

In, e.g. Marlin Firmware, the bed level correction is fading out over a predefined distance, this is determined by the constant #define ENABLE_LEVELING_FADE_HEIGHT in the printer firmware Configuration.h file and the height can be set with M420 Z<height> (see here).

M420 S1 ; Enable compensation using current grid/mesh
M420 Z10 ; Gradually reduce compensation until Z=10

Yes, a cube will not be perfectly cubic, that is why even with auto bed leveling you need to provide a bed as level as possible, it only should correct for very small deviations.

When the print is smaller than the fade out height, you would indeed get a sheared print, if larger, then the top of the print would be level with respect to the reference plane. Note that that still can be skew if the printer is improperly calibrated (e.g. when using 2 Z steppers or misalignment of the height on either side).

share|improve this answer

edited 6 hours ago

answered 9 hours ago

0scar

4,9981834

share|improve this answer

share|improve this answer

edited 6 hours ago

edited 6 hours ago

edited 6 hours ago

answered 9 hours ago

0scar

4,9981834

answered 9 hours ago

0scar

4,9981834

answered 9 hours ago

0scar

4,9981834

4,9981834

add a comment | 

add a comment | 

 

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