A USEFUL ANSWER FIRST
Small tools. Real answers.
Work out a print price, a sheet estimate or a film dilution. Free calculators with visible formulas and no sign-up.
3D print cost calculator
Estimate filament, power, machine time, failed prints and labor. Calculate a selling price from your target margin and fees. Free, no sign-up.
Film developer dilution calculator
Mix a 1+N film developer dilution for any final volume. Calculate concentrate and water, with clear examples and a minimum-concentrate check.
Plywood sheet calculator
Estimate identical panels per sheet with kerf, edge trim and optional rotation. See a simple grid layout and how many sheets your job needs.
We make the iPhone apps linked from these tools. Each calculator works on its own; an app download is optional.