I have been working with a single semi-functioning hand. My physiotherapist thinks this hobby would be good for the recovery and sensitivity of my fingers. I told her that my fingers were never very sensitive.
So I rigged a few blocks. But to do them as well as I hoped required some clamping action...
Made the Main Topsail Yard Tye. This took me awhile - sorry about the focus... my camera skill is questionable.

So I learned a number of things when I created this assembly:
1. Serving small diameter (0.35mm) rope is a

challenge.
2. Making a served rope perform a loop without the serving "spreading" on the turn is, ummm, difficult.
3. A one-armed idiot should not attempt this type of delicate construction.
I was really proud of my lashing on the tye, until I discovered that I had the rig reversed, and had to disassemble it and apply it to the other side of the yard.
I plan to continue rigging the yards until my hands are functioning better. These items can be redone without much difficulty. Once my hands are reliable, then I'll get back to stays and ratlines.
Wishing all a Merry Christmas!
