Made thanks to :

• Canon EF mount
• Canon FD flange
• Grip

Edited on TinkerCAD (link)

I added a second model with aperture lock (TinkerCAD link)

Tested on Canon EOS 1200D with Sigma Zoom-KII 1:4.5 70-210mm and Makinon Zoom 1:3.5 80-200mm

Looses focus to infinity

XYZprinting

da Vinci Jr. 1.0 Pro

Yes