In the 80s there was DIY 2D plotter Alfi [1] for ZX Spectrum. I had and used one. This year, i visited my friends trying to run current DIY 3D printer, and funny thing is that it was plagued by similar isses like the 2D plotter several decades before.
[1] https://www.youtube.com/watch?v=lq2fGkQO_gQ