Smaller files don't just save disk space: they're also faster to process and transfer via e-mail or on servers.With Chitubox (Pro) being the only option as a slicer on the Elegoo Mars 3 and on future Chitu-based resin printers, let’s find out whether shelling out for Chitubox Pro is a necessity or mostly pointless.Īs of today, the Elegoo Mars 3 is locked down to only work with Chitu System’s Chitubox slicer – and any future printers from any manufacturer will be locked down, too, as long as they are built on the Chitu ecosystem. The ASCII STL format is older than the binary format, so you may find some very old software can only understand the ASCII STL files, but unless you're working with such old software, it's usually better to use the binary format. Most slicers can't use these colours anyway - and subsequently, ignore color information on import. Whether this matters to you depends on what printing technology you'll be using. If your model has coloured triangles, you might find that the binary STL preserves the colours, while the ASCII STL loses the colours. Some tools have a way of putting colour information into the binary STL format, which isn't possible with the ASCII format. This is what fred_dot_u experienced in his answer. In this case, it'll make a huge difference which one you use, but you'll only find out when one goes wrong. The same is true of the slicer, which may have a bug reading one of the two kinds of STL but not the other.
One exporter may have a bug that the other exporter doesn't. I don't know about Meshmixer specifically, but some tools will have completely different code paths for exporting the two formats. There are a couple of important exceptions here: The number of triangles and the dimensions of the printed model will stay the same. That's to say, if you take the exact same model, save it as a binary STL and as an ASCII STL, the binary STL file will take up fewer bytes on disk. The two formats contain the same information about the model, but the binary format is much more compact, so it will produce smaller files from the same part but they should work the same.
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