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* Create Patterns specific wiki * Fix typos in installation instructions Corrected the winget flag from --exact to -e and removed an extraneous backtick from the Mac xattr command in the README installation instructions. * Improve README formatting and clarity * Calibration Flow Ratio Yolo Archimedean cords Co-Authored-By: MxBrnr <142743732+MxBrnr@users.noreply.github.com> * redirection/tab.cpp section * Missing Frequent * remove auto-cooling * remove thumbnails * seam pointers * walls * infill * Image standarization * Fix broken internal links * Add reference note to Arachne wall generator docs * OrcaSlicer std * PrusaSlicer std * 2d-lateral xlsx * vertical patterns * Redirections fix * Update speed_settings_overhang_speed.md * Fix to action * FlowRate Co-Authored-By: MxBrnr <142743732+MxBrnr@users.noreply.github.com> * Top Bottom Shells * advanced strength * Action fix * Update How-to-wiki.md * Home.md icons and reorganize sections * Home Icons fix * Update cornering-calib.md * Update strength_settings_infill.md * Update Auxiliary-fan.md Co-Authored-By: Fisheye_3D <78997080+fisheye3d@users.noreply.github.com> * Add warning about wiki maintenance status
81 lines
6.4 KiB
Markdown
81 lines
6.4 KiB
Markdown
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# Flow Rate Calibration
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Flow ratio determines how much filament is extruded and is crucial for high-quality prints.
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A properly calibrated flow ratio ensures consistent layer adhesion and accurate dimensions.
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- Too **low** flow ratio causes under-extrusion, which leads to gaps, weak layers, and poor structural integrity.
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- Too **high** flow ratio causes over-extrusion, resulting in excess material, rough surfaces, and dimensional inaccuracies.
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- [Calibration Types](#calibration-types)
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- [OrcaSlicer \> 2.3.0 Archimedean chords + YOLO (Recommended)](#orcaslicer--230-archimedean-chords--yolo-recommended)
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- [OrcaSlicer \<= 2.3.0 Monotonic Line + 2-Pass Calibration](#orcaslicer--230-monotonic-line--2-pass-calibration)
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- [Credits](#credits)
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> [!WARNING]
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> **BambuLab Printers:** Make sure you do **not** select the 'Flow calibration' option.
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> 
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> [!NOTE]
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> After v2.3.0, the [Top Pattern](strength_settings_top_bottom_shells#surface-pattern) changed to [Archimedean chords](strength_settings_patterns#archimedean-chords) from [Monotonic Line](strength_settings_patterns#monotonic-line).
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## Calibration Types
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- **YOLO:** A simplified method that adjusts the flow rate in a single pass using the formula `OldFlowRatio ± modifier`.
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- **Recommended:** calibration range `[-0.05, +0.05]`, flow rate step `0.01`.
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- **Perfectionist:** calibration range `[-0.04, +0.035]`, flow rate step `0.005`.
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- **2-Pass Calibration:** the legacy method, using two passes to determine the optimal flow rate with the formula `OldFlowRatio * (100 + modifier) / 100`.
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### OrcaSlicer > 2.3.0 Archimedean chords + YOLO (Recommended)
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This method uses the [Archimedean Chords](strength_settings_patterns#archimedean-chords) pattern for flow rate calibration with the YOLO (Recommended) approach.
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1. Select the printer and the filament you want to calibrate.
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This method is based on the filament's current flow ratio, so make sure you select the correct filament before proceeding.
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2. In the `Calibration` menu, under the `Flow Rate` section, select `YOLO (Recommended)`.
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3. A new project with eleven blocks will be created, each with a different flow rate modifier. Slice and print the project.
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4. Examine the printed blocks and identify the one with the best surface quality. Look for:
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1. The smoothest top surface.
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2. No visible gaps between the pattern arcs.
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3. Minimal or no visible line between the Inner Spiral and the Outer Arcs.
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In this example, the block with a flow modifier of `+0.01` produced the best results, despite a visible line between the Inner Spiral and the Outer Arcs; reducing the flow further begins to show gaps between the lines.
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5. Update the flow ratio in the filament settings using the equation: `OldFlowRatio ± modifier`.
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If your previous flow ratio was `0.98` and you selected the block with a flow rate modifier of `+0.01`, the new value would be: `0.98 + 0.01 = 0.99`.
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**Remember** to save the filament profile.
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> [!NOTE]
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> The new Archimedean chords pattern uses a specific print order that prints the inner spiral last so you can check for material accumulation on the contact line at the end.
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### OrcaSlicer <= 2.3.0 Monotonic Line + 2-Pass Calibration
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This example uses the Monotonic Line pattern with the 2-Pass Calibration approach.
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1. Select the printer, filament, and process you want to use for the test.
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2. In the `Calibration` menu, under the `Flow Rate` section, select `Pass 1`.
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3. A new project with nine blocks will be created, each with a different flow rate modifier. Slice and print the project.
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4. Examine the blocks and determine which one has the smoothest top surface.
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5. Update the flow ratio in the filament settings using the equation: `OldFlowRatio * (100 + modifier) / 100`.
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For example, if your previous flow ratio was `0.98` and you selected the block with a flow rate modifier of `+5`, the new value would be: `0.98 × (100 + 5) / 100 = 1.029`.
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**Remember** to save the filament profile.
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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`.
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7. Repeat steps 4 and 5. For example, if your previous flow ratio was `1.029` and you selected the block with a flow rate modifier of `-6`, the new value would be: `1.029 × (100 - 6) / 100 = 0.96726`.
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**Remember** to save the filament profile.
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> [!TIP]
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> @ItsDeidara has created an HTML tool to help with these calculations. Check it out if you find the equations confusing: [Orca-Slicer-Assistant](https://github.com/ItsDeidara/Orca-Slicer-Assistant).
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## Credits
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- **[Archimedean Chords Idea](https://makerworld.com/es/models/189543-improved-flow-ratio-calibration-v3#profileId-209504)**: [Jimcorner](https://makerworld.com/es/@jimcorner)
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