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                  4. Modifier-meshes: Custom supports and other magic
                   

                  Contents

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                  • Custom supports
                  • Height range modifier
                  • Modeling using PrusaSlicer

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                  Modifier-meshes: Custom supports and other magic

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                  OLD PRODUCTS
                  6 comments
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                  This will be covered more extensively in the near future, but for now, we want to give you a quick overview on how to use some of the amazing new features available in PrusaSlicer. This guide sums up using primitives (cubes, spheres, cylinders, etc.) to affect selected regions of your 3d-model in different ways, be it various infill, perimeters, or custom supports.

                  Modifier meshes

                  Modifier meshes apply custom settings to the intersection of the modifier mesh and the model.

                  Right-click on a model and pick Add modifier - [Select modifier type]. When you pick the modifier shape (e.g. cube) it will appear in the 3D view and in the Object list in the right panel.

                  You can either right-click on the modifier in the 3D view or click on the gear icon in the Object list panel to generate modifier-meshes.

                  Choosing "Add part" from the same list will create an object that will be sliced as the model, but can be moved in the Z-axis as well.

                  There are 4 primitives to choose from - Cube, Cylinder, Sphere, and Slab. Additionally, in the expert mode, you can use any STL-file as a modifier-mesh by selecting Load … in the mesh selection. This mesh is typically something you’ve modeled beforehand in a 3D-modelling program. 

                  You can use the familiar Move, Rotate, and Scale-tools to transform the modifier-mesh.

                  Some settings are only available in Advanced and Expert-mode: Advanced mode - custom infill, layers, and perimeters or support material Expert mode - custom infill, layers, and perimeters, support material, extrusion width, speed, and several other settings
                  If you scale the model then both model and modifier-mesh will scale. Modifier-mesh will retain its size and position relative to the model.

                  Custom supports

                  Using custom supports is the same approach as modifier-meshes, where you instead choose "Add Support enforcers" for applying supports and "Add Support Blockers" to remove supports in certain areas. Supports will be generated to where the Enforcer intersects with the main model. Be sure to enable support enforcers, in the drop-down menu found above your list of models.

                  If you select "Support on built-plate only" or "Everywhere" only Support blockers can be utilized.

                  Height range modifier 

                  Right-click on a model and pick the Height range modifier from the same context menu you added the modifier-mesh or Support enforcer/blocker. A new window will appear in the right panel called Height ranges. Here you set intervals, between which you can apply different settings. When you set an interval, it will appear in the Object list in the right panel.

                  You can add or remove intervals with the orange plus and minus icons.

                  When you click on the gear icon next to the interval, you can choose to set up:

                  • Advanced mode - custom infill, layers, and perimeters or support material
                  • Expert mode - custom infill, layers and perimeters, support material, extrusion width, speed, and several other settings

                  The interval setting also features a layer height input. By default, the global layer-setting is used, but you can choose to slice the model at a different layer height and only the interval will be affected by this change. Keep in mind that if you set up a different layer height for the entire model, on the height interval it will be overridden by this value.

                  Modeling using PrusaSlicer

                  These features essentially enable you to do modeling/remixing using only PrusaSlicer. Below is an example where a Tartasauro, by Thingiverse-user 'gianpaolo', has been hollowed out and made into "Piggy-bank" using only the features explained here. The threading and screw-cap at the bottom are both the same model, found online. Void and coin-slot are primitives generated by PrusaSlicer, with infill, perimeters, and top/bottom-layers set to zero.

                  Download the .3mf project-file here to have a look for yourself. Simply open it in PrusaSlicer.

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                  Topics

                  • Using the printer
                    • Slicing
                      • How to prepare .stl files and G-codes for Multi Material upgrade
                      • Modifier-meshes: Custom supports and other magic
                      • How to import profiles to Cura 4.x (Windows & macOS)
                      • How to import profiles to Simplify3D 4.x (Windows & macOS)
                    • 3D models
                    • Material guide
                    • Printer maintenance
                    • Prusa Connect & PrusaLink

                  3 comments

                  Log in  to post a comment
                  ex-nerd
                  •
                  Is there a way to use a modifier mesh to affect only one part within a model? E.g. to add "fuzzy skin" only to one color of a MMU model.
                  Reply
                  Same Old Shane
                  •
                  I do not believe so as with a MMU, it sectioning off the model into different parts that the program recognizes differnt filament swaps, not for different modifiers.  you could submit a request for that here.https://github.com/prusa3d/PrusaSlicer/pulls
                  Reply
                  SimonSolar2C
                  •
                  Can we have support modifiers that allow me to change the support settings in areas
                  Reply
                  William H. - Official Prusa
                  •
                  Hello. Yes, in the newer version of PrusaSlicer (2.3) you will have Support Settings as an option under Add settings:)
                  Reply
                  Netfool
                  •
                  Please consider adding a temperature setting to Height Ranges.  It would make slicing temperature towers much easier.
                  Reply
                  William H. - Official Prusa
                  •
                  By righ-clicking the + sign in the Preview window, you can add custom Gcode instead of automatic color change. Use M104 to set hotend temp. https://help.prusa3d.com/en/article/color-change_1687
                  Reply