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TNC Sim
Learn and simulate Heidenhain CNC programs in 3D
TNC Sim is a free, open-source simulator for learning and exploring Heidenhain Klartext CNC programming. Write or import a program, inspect its toolpath, and watch the machining process in 3D directly in your browser. It supports common positioning commands, cycles, Q parameters, radius compensation, multiple tool shapes, and interactive lessons. The Android app also works fully offline. Early release—not a substitute for verification on a real machine.
Hi Product Hunt! 👋
I’m the maker of TNC Sim, a free and open-source simulator for Heidenhain Klartext CNC programming.
TNC Sim lets you write or import an NC program, inspect the toolpath, and watch the machining process in 3D directly in your browser. It also includes interactive lessons, common machining cycles, Q parameters, radius compensation, several tool shapes, and an Android app that works fully offline.
This is an early release, so it is not intended to replace verification on a real control or machine. I would especially appreciate feedback from CNC programmers, instructors, students, and anyone familiar with Klartext programming.
Which commands, cycles, or learning features would make TNC Sim more useful to you?
Thanks for taking a look!
About TNC Sim on Product Hunt
“Learn and simulate Heidenhain CNC programs in 3D”
TNC Sim was submitted on Product Hunt and earned 0 upvotes and 1 comments, placing #158 on the daily leaderboard. TNC Sim is a free, open-source simulator for learning and exploring Heidenhain Klartext CNC programming. Write or import a program, inspect its toolpath, and watch the machining process in 3D directly in your browser. It supports common positioning commands, cycles, Q parameters, radius compensation, multiple tool shapes, and interactive lessons. The Android app also works fully offline. Early release—not a substitute for verification on a real machine.
On the analytics side, TNC Sim competes within Android, Open Source, Education, Developer Tools and GitHub — topics that collectively have 763.9k followers on Product Hunt. The dashboard above tracks how TNC Sim performed against the three products that launched closest to it on the same day.
Who hunted TNC Sim?
TNC Sim was hunted by Slavo Mrvka. A “hunter” on Product Hunt is the community member who submits a product to the platform — uploading the images, the link, and tagging the makers behind it. Hunters typically write the first comment explaining why a product is worth attention, and their followers are notified the moment they post. Around 79% of featured launches on Product Hunt are self-hunted by their makers, but a well-known hunter still acts as a signal of quality to the rest of the community. See the full all-time top hunters leaderboard to discover who is shaping the Product Hunt ecosystem.
For a complete overview of TNC Sim including community comment highlights and product details, visit the product overview.
Slavo Mrvka