Compare calculators

Both calculators run independently — change the inputs on either side to compare results.

3D Print Tolerance Calculator

Calculates the adjusted target dimension for 3D printed parts to achieve a specific mechanical fit, accounting for printer accuracy, material shrinkage, and surface finish. Use it when designing mating parts like shafts, holes, and sliding joints.

Nominal Dimension (mm)

Fit Type

Printer Accuracy

Post-Print Shrinkage (%)

Surface Finish Factor

Fill in the required fields to see your result.

3d Printing

3D Printer Cooling Calculator

Recommends a cooling fan speed percentage for FDM 3D printing based on material type, layer time, nozzle temperature, and ambient conditions. Use it to dial in cooling settings for overhangs and bridging.

Material Type

Layer Print Time (seconds)

Nozzle Temperature (°C)

Ambient Temperature (°C)

Bridge/Overhang Distance (mm)

Fill in the required fields to see your result.

Key differences

	3D Print Tolerance Calculator	3D Printer Cooling Calculator
Category	3d Printing	3d Printing
Inputs required	5	5
Result	Adjusted Dimension (mm)	Optimal Fan Speed (%)
What it does	Calculates the adjusted target dimension for 3D printed parts to achieve a specific mechanical fit, accounting for printer accuracy, material shrinkage, and surface finish. Use it when designing mating parts like shafts, holes, and sliding joints.	Recommends a cooling fan speed percentage for FDM 3D printing based on material type, layer time, nozzle temperature, and ambient conditions. Use it to dial in cooling settings for overhangs and bridging.