Thanx!
Today I got the a tapper so I could do the thread cutting for the hinges.
These are the tools I used:
I needed a pre-cut and final cut:
Last pieces for the res:
I glued the disks with the threads to the visor. Cover-rings will follow tomorrow. The hinges you see can be rotated. But I don't think I will need this, because the hoses are outside the sphere and can bend when the visor opens.
That's it for today. See you soon.