3D Print Price Calculator
angelby28-max.github.io
Free web calculator for pricing 3D prints from factors like filament cost and weight, print time, electricity and labor, to help you set a selling price. A small community-made tool hosted on GitHub.
Pilot Hole Calculator
lostintech3d.github.io
Free web calculator that tells you what hole size to design so screws bite properly into 3D printed plastic, for common screw sizes and materials.