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Finned heatsink CAD model

A 60 x 40 mm heatsink with a 4 mm base and nine 1.5 mm fins, 25 mm tall on a 7 mm pitch. The fins are one extrude and a linear pattern, and two M3 clearance holes sit between fins for mounting.

Free to use under CC BY 4.0. Made in VIZON CAD.

Finned heatsink parametric CAD model made in VIZON

Specifications

Solid volume: 23,027 mm³, measured by the VIZON CAD kernel.

Base60 x 40 x 4 mm
Fins9 x 1.5 mm, 25 mm tall, 7 mm pitch
Mount holes2 x M3 clearance

How it was made

This part is 7 parametric features in the VIZON CAD editor. Each line below is one feature in its feature list, so every size can be changed and the part rebuilds.

FeatureTypeSettings
Base sketchSketchTop plane · 1 item
BaseExtrudeNew · 4 mm
Fin sketchSketchTop + 4 mm · 1 item
FinExtrudeAdd · 25 mm
FinsLinear pattern9 × 7 mm along X
Mount sketchSketchTop + 4 mm · 2 items
Mount holesHoleØ3.4 · through

Good for

  • Cooling for regulators, LEDs and small chips
  • Concept models of thermal parts
  • An example of linear patterns

Make it your own

  • Change fin count and pitch in "Fins".
  • Make fins taller in "Fin".
  • Resize the base in "Base sketch".
Finned heatsink parametric CAD model in the VIZON CAD editor
The finned heatsink open in VIZON, with its feature list.

Questions about this model

Is the finned heatsink model free?

Yes. Download it as STEP or STL and use it under CC BY 4.0: free for any purpose, including commercial use, with credit to VIZON.

Can I change the dimensions?

Yes. Open the STEP file in the VIZON CAD editor to add features, or rebuild it from the feature list on this page and change any number.

Which file should I download for 3D printing?

The STL. It is exported in millimetres with Z up, ready for any slicer. Use STEP if you want to keep editing in CAD.

Design your own part

Sketch it, or describe it with sizes and let the AI write the features.