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Sunday 14th 45F, leaden overcast. The weather continues to be darkly depressing but dry.
Operating the shutters with ropes is not as simple as I had imagined. The shutters are raised relative to the dome. So the ropes would have to pass though the slit ribs and still be at quite an angle. Some sort of ferrule would be needed to keep friction low. A bare hole in plywood would soon wear out the ropes.
Disaster! While opening the shutters one of the drawer slides fell apart!
I am now looking at using a set of [8] 72mm inline skate wheels for the bottom of the shutters. The wheels were bought years ago from a charity shop. The option exists to have an inverted rail with wheels fixed below. Or wheels on the shutters rolling in a channel below.
The latter seems easier to arrange. Provide the weather can't sit in the groove or channel. Snow or ice might be a nuisance in winter. The wheels remain at maximum spacing to avoid lateral tipping. The supporting rail is full length for assured alignment. I ought to be thinking about using wheels at the tops of the shutters as well. I no longer trust the drawer slides in this context.
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