1. What is the Flow Ratio Equation?

The Flow Ratio equation calculates the adjusted flow rate in Orca Slicer for heat pump/3D printing applications based on calibration results. It helps optimize material flow for better print quality.

2. How Does the Calculator Work?

The calculator uses the Flow Ratio equation:

Where:

• \( FlowRatio_{old} \) — Current flow ratio value (decimal)
• \( modifier \) — Calibration adjustment percentage

Explanation: The equation adjusts your current flow ratio based on calibration test results to achieve optimal material flow.

3. Importance of Flow Ratio Calculation

Details: Proper flow ratio is crucial for dimensional accuracy, surface quality, and preventing under/over extrusion in 3D printing.

4. Using the Calculator

Tips: Enter your current flow ratio (typically starts at 1.0) and the modifier percentage from your calibration test. Positive values increase flow, negative values decrease it.

5. Frequently Asked Questions (FAQ)

Q1: What's a typical starting flow ratio?
A: Most printers start with a flow ratio of 1.0 (100%), which is then adjusted based on calibration tests.

Q2: How often should I recalibrate flow ratio?
A: Whenever you change filament type/brand, nozzle size, or notice print quality issues related to extrusion.

Q3: What's a reasonable modifier range?
A: Typically ±5-15%, but can vary based on material and printer. Extreme values may indicate other issues.

Q4: Does this replace pressure advance tuning?
A: No, flow ratio and pressure advance address different aspects and both should be properly calibrated.

Q5: Should I use the same flow ratio for all materials?
A: No, different materials often require different flow ratios due to varying viscosity and shrinkage properties.