What this workbench does
Size a slot and matching tab from measured material thickness, total fit clearance and a real kerf test.
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
Cut a test slot and tab, measure both after cooling, then adjust the measured full kerf rather than guessing a machine-wide constant.
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.