Extrusion Multiplier (Cura) – 5 Ways to Improve Your Prints

The extrusion multiplier, which is called “Flow Rate” in Ultimaker Cura, specifies the rate at which your printer will extrude material. Based on the value for this setting, Cura automatically calculates how fast to move the extruder motor for certain print speeds or filament diameters. 

By default, the flow rate is 100%, however not all 3D printers or filaments are created equal. You may need to adjust this value to print successfully with your specific machine and materials. Most materials use a flow rate between 90% and 110%, but you can increase this value above or below these percentages.

Here’s how to locate the flow rate:

  1. Once you have Cura open, open custom settings.
  2. Right-click and select “Configure Setting Visibility…”
  3. Select “Check All” and return to your (now expanded) set of settings.
  4. Under the Material Settings, you will find Flow Rate and Initial Flow Rate

In the rest of this article, we’ll dive into how to adjust these settings to rid your prints of 5 different issues. 

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