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The roof is done almost
Hi all
The roof is finished, and rolls smoothly on and off. Now for details; the main support for the tracks are two 90mm x 90mm x5m beams these protrude about a metre on ether side of the shed. Bolted to these are four 50mm x 50mm x 2.5m square tubing (two at each end), these form the track for the roof to roll along.
The roof itself is contracted from 38mm x 33mm angle iron and 35mm x 75mm structure pine and corrugated sheet iron. The roller system is as follows; on each of the four peices of angle iron are attached four 50mm castors (total 16) nexts four tangent arms, fitted with a 100mm ball raced wheels are fix to each peices of angle iron. The 100mm wheels fit below the 50mmx50mm track and the purpose of these wheels is to hold the roof in place as I am not using full length track due the little room I have in the back yard (in short it is a space saving measure). Turn buckles are used to tension the 100mm wheel against the bottom of the tracks.
Internally eight guide wheels have been fitted (four for each roof panel) and rest against the 90mm x 90mm beam so as to help guide the roof half when they are being open or closed.
In operation the whole system works very smoothly, later on I will install a pully system to make the job easier.
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