Wiki Update 9 - Speed (#10173)

* Improve initial layer speed documentation

Expanded explanations for initial layer speed settings, including benefits of slower first layers, detailed descriptions for each speed parameter, and added an illustrative image for the 'number of slow layers' setting.

* Update Volumetric speed calib + images

* Update speed_settings_other_layers_speed.md

* Improved MVFS descriptions

Co-Authored-By: dewi-ny-je <2866139+dewi-ny-je@users.noreply.github.com>
Co-Authored-By: MxBrnr <142743732+mxbrnr@users.noreply.github.com>
Co-Authored-By: Rodrigo <162915171+RF47@users.noreply.github.com>

* Clarify bed temperature effects

* MVF images from 14 to 19

To match description

* Update temp-calib.md

* Expand and clarify temperature calibration guide

Added a standard temperature ranges table for common 3D printing materials, clarified and expanded sections on bed and chamber temperature, and improved formatting and tips for optimal print quality.

Co-Authored-By: dewi-ny-je <2866139+dewi-ny-je@users.noreply.github.com>

* Update links for acceleration and jerk settings

* Small perimeters

* Update speed_settings_other_layers_speed.md

* Add reference to ironing speed settings

* Update overhang speed

* Add travel speed illustration

* Update avoid crossing

* Update speed_settings_acceleration.md

* Update speed_settings_overhang_speed.md

* Update speed_settings_acceleration.md

* Update speed_settings_jerk_xy.md

* Update speed_settings_jerk_xy.md

* Update ERS documentation and replace images with PNGs

* Seam Aligned Back

* Copilot FIX

Co-Authored-By: Copilot <175728472+Copilot@users.noreply.github.com>

---------

Co-authored-by: dewi-ny-je <2866139+dewi-ny-je@users.noreply.github.com>
Co-authored-by: MxBrnr <142743732+mxbrnr@users.noreply.github.com>
Co-authored-by: Rodrigo <162915171+RF47@users.noreply.github.com>
Co-authored-by: Copilot <175728472+Copilot@users.noreply.github.com>

doc/calibration/volumetric-speed-calib.md

@@ -1,23 +1,49 @@
 # Max Volumetric Speed (FlowRate) Calibration
 
-This is a test designed to calibrate the maximum volumetric speed of the specific filament. The generic or 3rd party filament types may not have the correct volumetric flow rate set in the filament. This test will help you to find the maximum volumetric speed of the filament.
+Each material profile includes a **maximum volumetric speed** setting, which limits your [print speed](speed_settings_other_layers_speed) to prevent issues like nozzle clogs, under-extrusion, or poor layer adhesion.
+
+This value varies depending on your **material**, **machine**, **nozzle diameter**, and even your **extruder setup**, so it’s important to calibrate it for your specific printer and each filament you use.
+
+> [!NOTE]
+> Even for the same material type (e.g., PLA), the **brand** and **color** can significantly affect the maximum flow rate.
+
+> [!TIP]
+> If you're planning to increase speed or flow, it’s a good idea to **increase your nozzle temperature**, preferably toward the higher end of the recommended range for your filament. Use a [temperature tower calibration](temp-calib#nozzle-temp-tower) to find that range.
+
+## Calibration Overview
 
 You will be prompted to enter the settings for the test: start volumetric speed, end volumetric speed, and step. It is recommended to use the default values (5mm³/s start, 20mm³/s end, with a step of 0.5), unless you already have an idea of the lower or upper limit for your filament. Select "OK", slice the plate, and send it to the printer.
 
-Once printed, take note of where the layers begin to fail and where the quality begins to suffer. Pay attention to changes from matte to shiny as well.
+Once printed, take note of where the layers begin to fail and where the quality begins to suffer.
+
+> [!TIP]
+> A **change in surface sheen** (glossy vs. matte) is often a visual cue of material degradation or poor layer adhesion.
 
 ![mvf_measurement_point](https://github.com/SoftFever/OrcaSlicer/blob/main/doc/images/MVF/mvf_measurement_point.jpg?raw=true)
 
-Using calipers or a ruler, measure the height of the print at that point. Use the following calculation to determine the correct max flow value: `start + (height-measured * step)` . For example in the photo below, and using the default setting values, the print quality began to suffer at 19mm measured, so the calculation would be: `5 + (19 * 0.5)` , or `13mm³/s` using the default values. Enter your number into the "Max volumetric speed" value in the filament settings.
-
+Use calipers or a ruler to measure the **height** of the model just before the defects begin.  
 ![mvf_caliper_sample_mvf](https://github.com/SoftFever/OrcaSlicer/blob/main/doc/images/MVF/mvf_caliper_sample_mvf.jpg?raw=true)
 
-You can also return to OrcaSlicer in the "Preview" tab, make sure the color scheme "flow" is selected. Scroll down to the layer height that you measured, and click on the toolhead slider. This will indicate the max flow level for your filament.
+ Then you can:
 
-![mvf_gui_flow](https://github.com/SoftFever/OrcaSlicer/blob/main/doc/images/MVF/mvf_gui_flow.jpg?raw=true)
+- Use the following formula
+
+  ```math
+  Filament Max Volumetric Speed = start + (height-measured * step)
+  ```
+
+  In this case (19mm), so the calculation would be: `5 + (19 * 0.5) = 14.5mm³/s`
+
+- Use OrcaSlicer in the "Preview" tab, make sure the color scheme "flow" is selected. Scroll down to the layer height that you measured, and click on the toolhead slider. This will indicate the max flow level for your filament.  
+![mvf_gui_flow](https://github.com/SoftFever/OrcaSlicer/blob/main/doc/images/MVF/mvf_gui_flow.png?raw=true)
+
+After you have determined the maximum volumetric speed, you can set it in the filament settings. This will ensure that the printer does not exceed the maximum flow rate for the filament.  
+![mvf_material_settings](https://github.com/SoftFever/OrcaSlicer/blob/main/doc/images/MVF/mvf_material_settings.png?raw=true)
 
 > [!NOTE]
-> You may also choose to conservatively reduce the flow by 5-10% to ensure print quality.
+> This test is a best case scenario and doesn't take into account Retraction or other settings that can increase clogs or under-extrusion.  
+> You may want to reduce the flow by 10%-20% (or even further) to ensure print quality/strength.  
+> **Printing at high volumetric speed can lead to poor layer adhesion or even clogs in the nozzle.**
 
 > [!TIP]
 > @ItsDeidara has made a html to help with the calculation. Check it out if those equations give you a headache [here](https://github.com/ItsDeidara/Orca-Slicer-Assistant).