3DPrinting is a place where makers of all skill levels and walks of life can learn about and discuss 3D printing and development of 3D printed parts and devices.
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Got this email from Autodesk that Fusion is increasing their annual price by a huge amount. I subbed for 1 year a couple years ago for I think $380. Then I was able to get an educational sub after that. Fusion is still the cheapest CAD software out there, not including the free stuff like FreeCAD, but still, this price increase is massive.
It should be noted that it's still free to use for personal use minus the extra features.
I don't know exactly how it is implemented, but if I had to guess, it is probably just metadata in the file. I know that when I print out the 2D drawings I make, it puts text in the bottom corner with something to the effect of "This was made with the educational version of Solidworks, Not for commercial use" or something like that. I expect something similar if you tried to open a file made on the educational version on the commercial version, there would be something similar on the screen. Not sure though, since I only have the educational version.
It's a very sticky watermark. If you open and save a file in educational, the watermark cannot be removed even if you open it in paid commercial version later.