Grid supports (left), Snug supports (right) The trade-off is the possibility of lower stability of tall and thin support pillars. The Snug supports maintain the shape of the overhang, so they do not leak to the walls. However, they tend to leak out of regions they support along the walls of the object. The default Grid supports have a very well-defined minimum area, making them very stable. Raft expansionĮxpansion of the raft in the XY plane for better stability. The vertical distance between the raft and the object. When the print finishes, you can grab the raft and peel it away from the part. The object will be raised by this number of layers and support material will be generated under it. This is useful for getting more adhesion of objects having a very thin or poor footprint on the build plate.Įnforce support for the first 100 layers Raft layers Generate support material for the specified number of layers counting from the bottom, regardless of whether normal support material is enabled or not and regardless of any angle threshold. The Overhang threshold value and how it's measured.The lower the value, the less support will be generated. The Overhang threshold value represents the most horizontal slope (measured from the horizontal plane) that you can print without support material (90=vertical).Ĭhanging this value is a quick way to adjust the amount of generated supports. Only support enforcers generate supports. Supports are disabled unless a model has an overwrite for this setting Auto-generated supports Some options will only appear when Expert mode is selected. You can repeat this process and print shorter, near-perfect bridges while still making the supports easy to remove. It’s less common, but you can also use support enforcers with the automatic generation on.Īnother interesting use of support enforcers is to split long bridges into smaller ones by placing a support in the middle of the bridge. In this situation, don’t forget to switch the support mode to For support enforcers only. Support enforcers are great in situations, where only a few parts of the object need to be supported, but the automatic algorithm places supports all over the model. Focus on placing blockers where the supports meet the object, the rest of the support structure below will be removed automatically. Support blockers are useful when you’re generally happy with the automatic supports and you simply want to remove some of them. You can also quickly duplicate them with copy&paste. Support blockers and enforcers can be manipulated with the familiar Move, Rotate, and Scale tools. Simple mode - Enforcers/blockers are always box-shapedĪdvanced mode - Box/Cylinder/Sphere/Slab shapesĮxpert mode - Option to load external geometry as a blocker/enforcer Right-click on a model and choose either a Support blocker or Support enforcer. Starting with PrusaSlicer 2.3, you can also use Paint on supports. If you think such a part of the model could be printed without supports, but neither the Overhang threshold setting nor selecting Supports on built plate only helped, you can adjust supports manually. The automatic supports can sometimes appear in hard-to-reach places, resulting in a tedious removal of support structures. When you do so, the global settings will once again be applied. You can remove the settings overwrite by clicking on the red cross icon. Changing these settings will affect only the relevant object and its instances. Alternatively, you can right-click on the editing icon in the Object list.Ī new window will appear in the right panel called Object settings to modify - Support material. You can overwrite them by right-clicking on a model in the 3D view and selecting Support material. ![]() By default, all models are affected by the global settings. It’s possible to print multiple objects at once each with its own support settings. This option is essentially a shortcut that turns Print settings - Support material - Generate support material on, but Print settings - Support material - Auto-generated supports off. ![]() Supports from build plate only (left), supports everywhere (right) For support enforcers onlyĪutomatic support generation is enabled only for areas marked with a support enforcer. Supports from build plate onlyĬreates only supports that have their base at the print bed. However, small imperfections may appear on the surface where supports started growing from. This ensures that every overhang and part starting mid-air will get supported. Supports can grow from both the print bed and any model surface when necessary. ![]() When you encounter hard-to-remove supports, consider wearing protective glasses (this sounds stupid until you get hit in the eye for the first time). Pieces of supports can be surprisingly sharp and are sometimes violently ejected in a random direction after removal. XY separation between an object and its support.
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