Stereographic Projection

I had fun with this one, for other examples of people doing Stereographic Projection, I highly recommend https://www.thingiverse.com/threonin/. His stuff is amazing and I love it.

This is a writeup of how to use this OpenSCAD design using dxf files.

* I have only tested this on a square pattern, but there's no reason it has to be square, it could be rectangular or circular as well.

###Instructions###

Find a black and white* pattern that you want to vectorize. Its easier if there aren't many grays. This step is skippable if you already have a monochrome vector pattern.

I just googled "black and white pattern".
Save the pattern to your computer.

Inkscape Directions


Open a new file in Inkscape (0.92) and *import* the imagefile. Don't 'Open', it can crash Inkscape. (png is good, jpeg is less good)
Use the Menu -> Path -> Trace Bitmap tool.

Make sure the image is selected or the tool wont work.
I used the "Brightness Cutoff" option, Threshold: 0.45, You will w