Extruder Calibration (Part Fitting) Test

by jonnieZG, published

Extruder Calibration (Part Fitting) Test by jonnieZG Jun 8, 2017
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A simple test for parts fitting. If the printer is properly set, the two parts should perfectly click together, like two Lego blocks.

You should repeat prints while adjusting Extrusion Multiplier or Filament Flow Live Tuning (depending on your software and printer), until the two parts snugly fit together. The XY Size Compensation should not be used if extrusion is properly set!

The process should be done for each new roll of filament.

Unlike the original object, this one has a lower base to increase printing speed and a groove on the top of both parts to mark the proper orientation.

Calibration Process
  1. Print the objects. Wait until it cools down before removing from the print-bed.
  2. Try to plug one object into the other. Be careful, the orientation does matter!
    a) If the objects can't fit, lower the Extrusion Multiplier or Flow and repeat.
    b) If the objects fit too loosely, increase the Extrusion Multiplier or Flow and repeat.
    c) If the two fit snugly, you're fine - the calibration is done!
Update 2017-09-06
  • Added a groove on the top of both parts, in order to identify correct orientation.

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Comments deleted.

if the orientation does matter, you should add a small pin in the top of both parts.

great design !!!

You are perfectly right! I've just added a groove on the top of the parts. Thanks for the suggestion!

Sep 5, 2017 - Modified Sep 5, 2017

Interesting. I'm gonna try this today. Is there a certain specific layer height required for this to work? Thanks for sharing!

This should work for all layer thicknesses. In a perfect world, this calibration once done on any layer height, should have the same effect when printing on other heights. Unfortunately, this is not the case, so if your tolerances are really low, you should perform this calibration with the specific layer thickness you intend to print your object.