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[doc] Warn Marlin user that Linear Advance must be enabled in firmware to do the Pressure Advance/Linear Advance calibration (#6111)

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* Uses GitHub Markdown Alerts in Calibration.md

* Add warning about Linear advance not enabled in Marlin firmware
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Bruno Paré-Simard 2024-07-13 12:02:14 -04:00 committed by GitHub
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doc/Calibration.md
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@ -10,13 +10,20 @@
1. [Max Volumetric speed](#Max-Volumetric-speed)
2. [VFA]
**NOTE**: After completing the calibration process, remember to create a new project in order to exit the calibration mode.
**NOTE2**: @ItsDeidara has made a webpage to help with the calculation. Check it out if those equations give you a headache [here](https://orcalibrate.com/).
> [!IMPORTANT]
> After completing the calibration process, remember to create a new project in order to exit the calibration mode.
> [!TIP]
> @ItsDeidara has made a webpage to help with the calculation. Check it out if those equations give you a headache [here](https://orcalibrate.com/).
# Flow rate
##### *NOTE: For Bambulab X1/X1C users, make sure you do not select the 'Flow calibration' option.*
![uncheck](https://user-images.githubusercontent.com/103989404/221345187-3c317a46-4d85-4221-99b9-adb5c7f48026.jpeg)
----------------------------------------
> [!WARNING]
> For Bambulab X1/X1C users, make sure you do not select the 'Flow calibration' option.
>
> ![uncheck](https://user-images.githubusercontent.com/103989404/221345187-3c317a46-4d85-4221-99b9-adb5c7f48026.jpeg)
![flowrate](./images/flow-calibration.gif)
Calibrating the flow rate involves a two-step process.
Steps
1. Select the printer, filament, and process you would like to use for the test.
@ -26,7 +33,7 @@ Steps
![flowrate-pass1_resize](https://user-images.githubusercontent.com/103989404/210138585-98821729-b19e-4452-a08d-697f147d36f0.jpg)
![0-5](https://user-images.githubusercontent.com/103989404/210138714-63daae9c-6778-453a-afa9-9a976d61bfd5.jpg)
5. Update the flow ratio in the filament settings using the following equation: `FlowRatio_old*(100 + modifier)/100`. If your previous flow ratio was `0.98` and you selected the block with a flow rate modifier of `+5`, the new value should be calculated as follows: `0.98x(100+5)/100 = 1.029`. ** Remember** to save the filament profile.
5. Update the flow ratio in the filament settings using the following equation: `FlowRatio_old*(100 + modifier)/100`. If your previous flow ratio was `0.98` and you selected the block with a flow rate modifier of `+5`, the new value should be calculated as follows: `0.98x(100+5)/100 = 1.029`.** Remember** to save the filament profile.
6. Perform the `Pass 2` calibration. This process is similar to `Pass 1`, but a new project with ten blocks will be generated. The flow rate modifiers for this project will range from `-9 to 0`.
7. Repeat steps 4 and 5. In this case, if your previous flow ratio was 1.029 and you selected the block with a flow rate modifier of -6, the new value should be calculated as follows: `1.029x(100-6)/100 = 0.96726`. ** Remember ** to save the filament profile.
![pass2](https://user-images.githubusercontent.com/103989404/210139072-f2fa91a6-4e3b-4d2a-81f2-c50155e1ff6d.jpg)
@ -35,9 +42,15 @@ Steps
# Pressure Advance
Orca Slicer includes three approaches for calibrating the pressure advance value. Each method has its own advantages and disadvantages. It is important to note that each method has two versions: one for a direct drive extruder and one for a Bowden extruder. Make sure to select the appropriate version for your test.
##### *NOTE: For Bambulab X1/X1C users, make sure you do not select the 'Flow calibration' option when printings.*
![uncheck](https://user-images.githubusercontent.com/103989404/221345187-3c317a46-4d85-4221-99b9-adb5c7f48026.jpeg)
Orca Slicer includes three approaches for calibrating the pressure advance value. Each method has its own advantages and disadvantages. It is important to note that each method has two versions: one for a direct drive extruder and one for a Bowden extruder. Make sure to select the appropriate version for your test.
> [!WARNING]
> For Marlin: Linear advance must be enabled in firmware (M900). **Not all printers have it enabled by default.**
> [!WARNING]
> For Bambulab X1/X1C users, make sure you do not select the 'Flow calibration' option when printings.
>
> ![uncheck](https://user-images.githubusercontent.com/103989404/221345187-3c317a46-4d85-4221-99b9-adb5c7f48026.jpeg)
### Line method
@ -126,7 +139,8 @@ You can also return to OrcaSlicer in the "Preview" tab, make sure the color sche
![image](./images/max_volumetric_flow.jpg)
#### *NOTE You may also choose to conservatively reduce the flow by 5-10% to ensure print quality.*
> [!NOTE]
> You may also choose to conservatively reduce the flow by 5-10% to ensure print quality.
***
*Credits:*