- https://hackaday.com/2017/07/15/hydrodipping-101/
- https://www.onshape.de/cad-features
- https://www.3dhubs.com/knowledge-base/cad-modeling-1-enclosures
- http://pulsar124.wikia.com/wiki/3D_Guardian
- https://www.dold-mechatronik.de/Aluminiumprofil-30x30L-I-Typ-Nut-6-ZUSCHNITT-bis-1200-mm-850-EUR-m-025-EUR-pro-Schnitt
- http://www.g3gg0.de/wordpress/uncategorized/3d-custom-geeetech-i3-printhead-and-some-other-stuff/
- https://drmrehorst.blogspot.com/2017/07/ummd-corexy-mechanism.html