Prusa Slicer and XL MMU: Difference between revisions
(Created page with "Working with the MMU (multi material unit) in the Slicer has a learning curve. Here are random tips and questions that we can better organize as we figure it out. == Extruder Painting == In the Slicer when you select an object you can paint the different extruders on it. Then, if the extruders are loaded with different colors or materials your finished object will have these. Tip 1: It doesn't work well on a flat surface. For example, in Fusion 360 you can create an e...") |
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Tip 1: It doesn't work well on a flat surface. For example, in Fusion 360 you can create an extrusion that is equal to a surface. Normally this extrusion would then be joined to the existing body and disappear. However, you can select to have the extrusion be a "new body". Then when you export the mesh you will have two bodies that are at the same height - a flat surface. The Prusa Slicer will let you paint a different extruder on each area. However, when you then slice the model your different bodies might get merged together - or might not. I've found it to be a bit random. | Tip 1: It doesn't work well on a flat surface. For example, in Fusion 360 you can create an extrusion that is equal to a surface. Normally this extrusion would then be joined to the existing body and disappear. However, you can select to have the extrusion be a "new body". Then when you export the mesh you will have two bodies that are at the same height - a flat surface. The Prusa Slicer will let you paint a different extruder on each area. However, when you then slice the model your different bodies might get merged together - or might not. I've found it to be a bit random. | ||
Tip 2: Make sure your extrusions are taller than your layer height. If not you will still be able to paint an extruder on the | Tip 2: Make sure your extrusions are taller than your layer height. If not you will still be able to paint an extruder on the feature but when you slice the model the feature might be merged into one layer arbitrarily and you will lose your intent to have different extruders for each feature. For example, if your feature extrudes 0.1mm from a surface but you are printing with 0.2mm layers, then you might not see your features in the sliced model. | ||
Revision as of 18:40, 21 February 2025
Working with the MMU (multi material unit) in the Slicer has a learning curve. Here are random tips and questions that we can better organize as we figure it out.
Extruder Painting
In the Slicer when you select an object you can paint the different extruders on it. Then, if the extruders are loaded with different colors or materials your finished object will have these.
Tip 1: It doesn't work well on a flat surface. For example, in Fusion 360 you can create an extrusion that is equal to a surface. Normally this extrusion would then be joined to the existing body and disappear. However, you can select to have the extrusion be a "new body". Then when you export the mesh you will have two bodies that are at the same height - a flat surface. The Prusa Slicer will let you paint a different extruder on each area. However, when you then slice the model your different bodies might get merged together - or might not. I've found it to be a bit random.
Tip 2: Make sure your extrusions are taller than your layer height. If not you will still be able to paint an extruder on the feature but when you slice the model the feature might be merged into one layer arbitrarily and you will lose your intent to have different extruders for each feature. For example, if your feature extrudes 0.1mm from a surface but you are printing with 0.2mm layers, then you might not see your features in the sliced model.
