Parametric Square Funnel
cults3d
Funnels are useful for so many things. Apparently a square shaped funnel empties faster than a conic funnel, so here's a parametric square funnel for you to mess with: https://cad.onshape.com/documents/2eb1d3c3dd6b546404d676a4/w/b4788c6684d4abf213968330/e/5fd1788a98018322d9c7c5ab I exported an example with both 1.5 and 0 shell thickness (i.e. solid) so you can choose whether to print this as a solid or a vase.
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