DZL created this DIY 3D digitizer and published code and instructions how to build it.
Project blog page: http://blog.dzl.dk/2018/08/21/3d-digitizer/
Project GitHub: https://github.com/dzlonline/3D_digitizer2
Project blog page: http://blog.dzl.dk/2018/08/21/3d-digitizer/
Project GitHub: https://github.com/dzlonline/3D_digitizer2