From our internal and external alpha/beta tests, we’ve seen that the addition of Organic supports changes how we think about FDM 3D printing and even 3D modeling. The Organic supports are easily removable, do not scar the surface, and are fast and cheap to print. The cross-section perpendicular to the branch axis is guaranteed to be circular, and the algorithm automatically uses double perimeter walls for the trees where needed (this is configurable). Branching is smarter and we made them straighter (shorter), smoother, and more stable. In contrast to the previously common implementation of tree supports, the Organic supports are very different. We would like to thank Ultimaker Cura and Thomas Rahm for the effort they have invested into the problem.Īlien – Xenomorph – Full Figure – 25 CM, model by Printed Obsession, printed by Filament Frenzy Our implementation is an evolution of the tree supports by Thomas Rahm, which are significantly improved tree supports originally from Cura. We choose a new name for our supports because of their distinctly smooth shape and several differences in their behavior.
In this release, we are presenting our significantly improved implementation of tree supports, which we decided to call ‘ Organic supports‘. Unfortunately, after a few tests, it was clear that a simple modification of the existing implementation wasn’t compatible with FDM 3D printers.
We first implemented these supports for SLA slicing in PrusaSlicer 2.0 (2019) and received a lot of feedback ever since to bring them to FDM slicing as well. Gradually expanding branches of supports are generated where needed and contact areas with the model are limited to a necessary minimum. We improved some of these downsides by introducing the “Snug” supports in PrusaSlicer 2.4, but they are still only an upgraded version of the old approach.Īn alternative approach, which was pioneered by various 3D modeling software and slicers is “Tree supports” – support structures designed to save material and printing time as much as possible. Especially when the settings were not tuned correctly. The supports often consumed quite a lot of filament, took a long time to print, ended up in spaces where they are difficult to remove from, and left visible marks on the model when removed. Although this method delivered decent results in many situations, it had its limitations. Until now, PrusaSlicer’s used a 2D grid-based approach to generate supports. Download PrusaSlicer 2.6 Organic Supports
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