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STL Pen Holder StarForge 3D Modeling Software

Pencil Cups for Classroom Printing

A teacher printing thirty pencil cups on the school makerspace printer wants a file nobody has to convert, and STL, the bare triangle mesh 3D Systems introduced in 1987, is the one every slicer and library machine already trusts. STL Pen Holder sizes the cup from the Diameter and Height typed in, with a plain side or Hex or Slot cut-outs, on 2.4 mm walls and a 3 mm floor that stay upright under a fistful of markers. StarForge 3D Modeling Software hands it over as a 3D Print STL File, ready for 3D printing that same afternoon.

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