NeatPlotting

A really neat web-based application -- three-d plot any formula!

https://c3d.libretexts.org/CalcPlot3D/index.html

and a curated list of formula!

https://www.softwareimpacts.com/action/showFullTableHTML?isHtml=true&tableId=tbl1&pii=S2665-9638%2820%2930017-8

Note that some of the formulas will have to be tweaked.

Note also that the rendered image can be output as stl, ready to slice and print!

More links: