Mould fluted sandcastle towers on the beach
Pack it with damp sand, turn it over and lift: a fluted tower with a star on top. The small hole lets air in so the sand releases.
Print floor-down as shown, then turn it over to use it.
Filament: at most about 191 g of PLA printed solid (roughly $3.82 at $20 per kg); normal infill uses less.
To get the files, open it in the generator and choose File › Download STL (one file per part) or Download 3MF (every part on one plate).
The sandcastle tower mould model measures 140 × 140 × 120 mm (width × depth × height). You can change every size in the free SO3D.xyz generator before you download it.
Usually not. Print floor-down as shown, then turn it over to use it.
At most about 191 g of PLA (154 cm³ printed solid), roughly $3.82 of filament at $20 per kg. Normal infill uses less.
Yes. Open it in the SO3D.xyz generator (free, in your browser), change the size, walls, dividers, holes, text or anything else, then download it as STL or 3MF for your slicer.
Change the size, walls, dividers, holes and labels of the sandcastle tower mould model in your browser, then download it for your printer. Free, no CAD needed.
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