MakerBot Print is our newest print-prepration software, which supports native CAD files and STL assemblies,
allows you to interact with all your printers via the Cloud, and many other exciting new features.
I noticed in the print settings notes that the lenses are made of transparent plastic sheets thermoformed with a heatgun
To obtain the form, I used additionnal parts named "noyau_lentille", "empreinte"lentille", "noyau_hublot" and "empreinte_hublot" that you can found at the very end of the parts list.
Hope this helps