[jbj]

yes, that is a good saving, The 3D printed plastic by itself is around USD 140, and the magnets around 40.

Here are the links I used back in 2018:

https://www.shapeways.com/product/965KNUESR/melinda-s-2x2x2x...

http://www.gaussboys.com/store/index.php/catalogsearch/resul...