How to Copy Protect Your STL Files (or Any of Your Original CAD Work)
Since the first time I had my own CAD work plagiarised by one of my suppliers, I have taken seriously the idea of protecting my CAD work and copy protecting my STL files.
The Makers Muse Youtube channel has recently released a video with some excellent practical advice on how to copy protect your STL files. This is particularly important advice for those who sell their models on online 3D modelling communities. Have a look:
To add onto the advice from this video, I would add some of my own suggestions:
- Some file formats are better than others for copy protection. Adobe PDF has built into its own architecture techniques for restricting editing by vector graphics programs or even installing a password protection. Similarly, it’s generally harder to edit an STL file than it is a Rhino .3dm file or 3Design .vtf file.
- The “Poor Man’s Copyright”, while not the same as an actual copyright, can be helpful in proving your ownership of your original work. And this can be done by email.
- The legal protection of a non-disclosure agreement with your 3D printer or caster can be another way to protect yourself. This is especially relevant for situations where you feel like you have something distinct in your design. The trouble can come if the supplier crosses the line anyway, as enforcing your rights with legal action can get expensive.
Jack Meyer
Bespoke jewellery designer and jewellery technology educator, providing jewellery CAD and design training since 2006.
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