You could have downloaded HeatHit 2.1 from our software library for free. The HeatHit installer is commonly called Heat2.exe. The software is included in Education Tools. The actual developer of the program is Stanislaw Raczynski. The most popular version of the HeatHit is 2.1.
From the developer:
HeatHit -Arbitrary body shape editor and heat transfer analysis
Main Features:
- Easy creation of 3D bodies with holes, 3D views with different angles
- STL files import.
You may want to check out more software, such as PerfectCuts Preview or TMA52 Nov 04, which might be related to HeatHit.