Hi Aardvark, happy to hear from you again!

Great to hear my STL thumbnails work! Just in case you didn’t know: You can adjust the colors and the viewing angle via registry if you don’t like the defaults. If you also use my viewer, its background/object color settings should be used automatically.



To be fair, Windows 10 *does* come with a thumbnail preview for STL files, but it only works if you choose 3D Viewer as your default STL program. My thumbnails, on the other hand, should work with any program you like!

I’ve also just released a small automation tool which can use my thumbnail generator to auto-generate preview images for STL files in PNG format. That’s great if you have a website with a gallery of STL files, for example.

Then there’s a huge update coming to the STL viewer, but I haven’t finished it yet … so many exciting things to do