Multimaterial Purge Calibration Tower

prusaprinters

This is a set of purge calibration towers for testing the purge settings on multimaterial prints. The Basic Idea It's important to find the right amount of material to purge when changing materials on a multimaterial print. Too much purge wastes material and takes extra print time. Too little purge leads to color bleeding. These purge calibration towers let you test your purge settings for up to five materials at a time. For each material, the tower prints 5mm of a single material, then 5mm alternating between that material and another material, and finally 5mm of the new material. This lets you easily see if there's any color bleeding when the printer switches between the materials. For towers with more than two materials, the segments are repeated so that every possible pair of materials is tested. Four purge calibration towers are included: Purge Test 2A, 2B: Two materials Purge Test 3A, 3B, 3C: Three materials Purge Test 4A, 4B, 4C, 4D: Four materials Purge Test 5A, 5B, 5C, 5D, 5E: Five materials Update: Oct 11, 2018 The files for Purge Test 3 have been updated. The original version didn't test the purge between materials 1 and 3 and this has been fixed. Print Settings Notes: Load the STL files for the purge tower you want into your slicer. For example, if you want a two-material purge tower, load Purge Tower 2A.stl and Purge Tower 2B.stl; if you want a four-material purge tower, load Purge Tower 4A.stl, Purge Tower 4B.stl, Purge Tower 4C.stl, and Purge Tower 4D.stl. Assign each STL to a different material and print as you would any other multimaterial print. To minimize the number of material changes (and hence print time/material) I suggest using thick layers. The models in the photo were printed with 0.25mm layers. Category: 3D Printing Tests