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This is a remix of Simple Christmas Tree that is simpler to print (original: https://www.thingiverse.com/thing:1962328). It is laid out flat, for one, and has the bevel removed from the bottom surface to ensure better printing. It also has a new base that wastes less material, holds the "stump" deeper, and and is keyed to fit the new flat back side.
No supports needed (obviously), but you might want to print a "brim" to help with adhesion around the sharp corners if your printer struggles at all.
This is a very large design, like the original, and I've been printing it at 75% scale (in the slicer) or smaller to fit my Ender 3 v2. The photo with the green trees show two at 75% and one at 60%.
I'd also consider enabling top layer ironing.
For best results on the tree, you really want to use a concentric infill pattern. It works much better for the super skinny line that makes up the tree.
Christmas_Tree_Outline_-_base_v2.stl | 28.8KB | |
Christmas_Tree_Outline_-_top.stl | 55.4KB |