German developer erkannt has created svg2solid, a web-based app that transforms SVG files into 3D models, allowing for multicolour 3D printing.
Users simply upload an SVG, which the app divides into shapes according to colour, generating an STL file for each.
The files can then be dragged into a 3D slicing program, treating each colour as a separate part of a single object.
While many 3D printing programs now offer native SVG support, svg2solid saves manual adjustments by assigning depth to shapes.
This is especially useful in making signs where background depths are set to the desired thickness, while coloured elements are limited to a few layers for minimal filament switching.
The open-source app is available on GitHub.
Those looking to create 3D-printed, lit-up faux neon signs can follow a separate Hackaday guide.