Enter the expected and measured width of a 3D print along with the current extrusion multiplier into the calculator to determine the new extrusion multiplier. This calculator helps in fine-tuning 3D printer settings for accurate filament extrusion.
Extrusion Multiplier Formula
The following formula is used to calculate the new extrusion multiplier:
EM_{text{new}} = left(frac{EW_{text{expected}}}{EW_{text{measured}}}right) times EM_{text{current}}
Variables:
- EM_{new} is the new extrusion multiplier
- EW_{expected} is the expected width of the filament extrusion (mm)
- EW_{measured} is the measured width of the filament extrusion (mm)
- EM_{current} is the current extrusion multiplier set in the 3D printer
To calculate the new extrusion multiplier, divide the expected width by the measured width and multiply the result by the current extrusion multiplier. This will give you the corrected extrusion multiplier to use in your 3D printer settings.
What is an Extrusion Multiplier?
The extrusion multiplier is a setting in 3D printing that adjusts the amount of filament that is extruded during a print. It is used to calibrate the printer to ensure that the actual amount of plastic being laid down matches the expected amount. This is important for the accuracy and quality of the print. A well-calibrated extrusion multiplier helps in achieving the right dimensions and surface finish of the printed object.
How to Calculate a New Extrusion Multiplier?
The following steps outline how to calculate the new Extrusion Multiplier.
- First, measure the width of the filament extrusion on a test print (EW_{measured}).
- Next, determine the expected width of the filament extrusion (EW_{expected}). This is usually the nozzle diameter or a value specified in the slicing software.
- Then, note the current extrusion multiplier set in the 3D printer (EM_{current}).
- Use the formula to calculate the new extrusion multiplier (EM_{new}).
- Finally, update the 3D printer settings with the new extrusion multiplier and perform a test print to verify the accuracy.
Example Problem:
Use the following variables as an example problem to test your knowledge.
expected width of the filament extrusion (EW_{expected}) = 0.4 mm
measured width of the filament extrusion (EW_{measured}) = 0.38 mm
current extrusion multiplier (EM_{current}) = 0.95
