<p>I have a Creality CR-10 S5 which is using Marlin firmware 1.1.6.</p>
<p>I recently got a level to level my printing bed, good high precision one.</p>
<p>Afterwards it was printing as if my bed was not level.</p>
<p>I assume that the 3D printer has old bed leveling data stored from its previous calibration.</p>
<ul>
<li>How do I clear this old data?</li>
<li>Can I enter new data manually?</li>
</ul>
<p>The printer doesn't have auto leveling with the current firmware.
I tried the old firmware, and the auto-leveling system didn't level the print bed.</p>
<p>I have no bed leveling sensors.</p>

CC BY-SA 4.0
2020-12-09T07:56:08.393Z
You are implying manual Unified Bed Leveling procedure of Marlin? Or are you using a bed leveling sensor? Or a bubble level? Please elaborate the question to include more information.
0scar
CC BY-SA 4.0
2020-12-09T09:42:15.580Z
It sounds like you are literally leveling the bed to gravity (you said you used a level). This is **not** what you want. The actual definition of bed leveling is making the bed parallel to the XY motion of the print nozzle and an appropriate distance to the Z=0 position. It doesn’t matter (within reason) if the bed is leveled to gravity.
DoxyLover
CC BY-SA 4.0
2020-12-09T12:59:19.520Z
Using bubble level for the bed is useless (unless you level the whole printer frame, which you should not do), you need to level in reference to the frame, see [this answer](https://3dprinting.stackexchange.com/a/7892/).
0scar
CC BY-SA 4.0
2020-12-09T13:32:11.480Z
Apparently my floor isn't level, so I re-leveled it, making it as unlevel as the floor. Have to test it later tonight.  Any one recommend a good bed leveling device.  However, the side that was too high I had to tighten a lot so that's a good sign.
cybernard
CC BY-SA 4.0
2020-12-09T14:48:25.677Z
Do you send `G29` to your printer or do you use `G28` in print startup? I use a dial gauge to level my bed.
Trish
CC BY-SA 4.0
2020-12-09T15:05:11.750Z
@cybernard Don't level with the bubble level you bought, level or better said tram the bed with the provided screws relative to the nozzle. The nozzle moving over the X axis is your level, make sure the bed is parallel to the X-axis. You don't need the bubble level!
0scar
CC BY-SA 4.0
2020-12-09T15:51:49.700Z
@Trish G29 does nothing on my printer.  Yes I have G28 in the startup code.  I tried several variations and all it says is OK, but does nothing.
cybernard
CC BY-SA 4.0
2020-12-09T16:01:39.963Z
Did you customize your firmware?
Trish
CC BY-SA 4.0
2020-12-09T16:16:45.750Z
@Trish I downloaded a new firmware provided by creality. 1.1.6.  Is this firmware considered custom?  So it is not the one it came with. How does it differ, I don't know except it is now compatible with OctoPrint Pi.
cybernard
CC BY-SA 4.0
2020-12-09T17:01:02.667Z
Please link to the firmware you downloaded. Some fimrware does *not* have G29 active. You need G29 to use mesh bed leveling.
Trish
<bed-leveling><creality-cr-10>
How do I reset the bed leveling data?
cybernard
# How do I reset the bed leveling data?

(Asked by: username_0 on 2020-12-09)

I have a Creality CR-10 S5 which is using Marlin firmware 1.1.6.

I recently got a level to level my printing bed, good high precision one.

Afterwards it was printing as if my bed was not level.

I assume that the 3D printer has old bed leveling data stored from its previous calibration.

* How do I clear this old data?
* Can I enter new data manually?

The printer doesn't have auto leveling with the current firmware.
I tried the old firmware, and the auto-leveling system didn't level the print bed.

I have no bed leveling sensors.

**Tags:** bed-leveling, creality-cr-10
> **Comments:**
> **username_1**: You are implying manual Unified Bed Leveling procedure of Marlin? Or are you using a bed leveling sensor? Or a bubble level? Please elaborate the question to include more information.  
> **username_2**: It sounds like you are literally leveling the bed to gravity (you said you used a level). This is **not** what you want. The actual definition of bed leveling is making the bed parallel to the XY motion of the print nozzle and an appropriate distance to the Z=0 position. It doesn’t matter (within reason) if the bed is leveled to gravity.  
> **username_1**: Using bubble level for the bed is useless (unless you level the whole printer frame, which you should not do), you need to level in reference to the frame, see [this answer](https://3dprinting.stackexchange.com/a/7892/).  
> **username_0**: Apparently my floor isn't level, so I re-leveled it, making it as unlevel as the floor. Have to test it later tonight.  Any one recommend a good bed leveling device.  However, the side that was too high I had to tighten a lot so that's a good sign.  
> **username_3**: Do you send `G29` to your printer or do you use `G28` in print startup? I use a dial gauge to level my bed.  
> **username_1**: @cybernard Don't level with the bubble level you bought, level or better said tram the bed with the provided screws relative to the nozzle. The nozzle moving over the X axis is your level, make sure the bed is parallel to the X-axis. You don't need the bubble level!  
> **username_0**: @Trish G29 does nothing on my printer.  Yes I have G28 in the startup code.  I tried several variations and all it says is OK, but does nothing.  
> **username_3**: Did you customize your firmware?  
> **username_0**: @Trish I downloaded a new firmware provided by creality. 1.1.6.  Is this firmware considered custom?  So it is not the one it came with. How does it differ, I don't know except it is now compatible with OctoPrint Pi.  
> **username_3**: Please link to the firmware you downloaded. Some fimrware does *not* have G29 active. You need G29 to use mesh bed leveling.  

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## 0 answers

