Skip to content

THE SUMFIZZ LIBRARY

3D printing and digital fabrication calculators

Explore 14 free tools for 3d printing and digital fabrication. Find 3d print job cost, filament remaining from spool weight, extruder steps calibration and more. Each calculator explains its inputs and method, with examples you can try using your own numbers.

THE SUMFIZZ LIBRARY

What are we working out?

14 calculators

⌕Browse all calculators →

3D print job cost

Itemises the supplied costs for one job.

3D printing and digital fabrication

Filament remaining from spool weight

Treats filament as a constant-diameter solid cylinder.

3D printing and digital fabrication

Extruder steps calibration

Proportional correction for a steps-per-mm setting only.

3D printing and digital fabrication

Extrusion flow calibration

Multiply the current flow factor by target width / measured width.

3D printing and digital fabrication

Printer axis scale calibration

This is a proportional-error hypothesis, not a diagnosis.

3D printing and digital fabrication

3D print layer count

The first layer is capped at object height.

3D printing and digital fabrication

FDM volumetric flow limit

Uses a stadium cross-section: a rectangle plus two semicircular ends.

3D printing and digital fabrication

Filament feed rate

Feed speed is volumetric flow divided by the circular filament cross-sectional area.

3D printing and digital fabrication

Printed hole compensation

Offset fits a constant dimensional loss; scale fits measured = factor × nominal through the origin.

3D printing and digital fabrication

Shrink-fit print compensation

Compensates independently measured shrinkage on three axes.

3D printing and digital fabrication

Support interface gap planner

Quantises the gap to whole layers with the chosen rule.

3D printing and digital fabrication

3D mesh scale to target volume

Uniform scaling changes volume by scale cubed and surface area by scale squared.

3D printing and digital fabrication

Voxel grid size

Round each box dimension up to whole voxels.

3D printing and digital fabrication

STL binary size estimate

Standard binary STL has an 80-byte header, 4-byte triangle count and 50 bytes per triangle.

3D printing and digital fabrication