What this workbench does
Estimate the shell volume of an ideal hollow rectangular model and compare it with a solid bounding box.
It combines an editable calculator, baseline comparison, one-input sensitivity chart, transparent formulas, worked examples and a printable measurement sheet.
How to assess the result
Compare the ideal shell with your slicer result. A large difference is a prompt to inspect supports and internal geometry.
The calculations implement the stated geometric or arithmetic model. They are estimates where real materials, equipment or processes differ from that model. The specific assumptions are listed on the calculator and reference pages.
Version
Workbench release 1.0 · 3 November 2026. Calculated examples and shared numeric engine checked automatically. Real-world project performance has not been independently certified.