Issue 73

OK, it's mandible time as promised. Unfortunately, some of my photos were accidentally saved as "Live" photos, those animated ones, so I don't have complete documentation.

Anyway, we take 3 framework parts, and bolt them together. First these two:

Then these two:

And now we attach the first plate. PLEASE NOTE: see that one of the screw holes (the one on the bottom of the "circle") is left empty. This is intentional. We'll get to it later.