I thought i would put this up for anyone wanting any information on this observatory modification, there are other videos uploaded by a few people which i give thanks so i have followed in their footsteps and done the same, the parts required are very easy to source the most expensive being the chain at £25 for 5m but only 2.5m was required, i have posted links to the parts used and they was the cheapest i could find at the time so if anyone is wanting some information in the mean time please ask away..08B-1 Roller Chain half inch pitch, £25.80http://www.ebay.co.uk/itm/Dunlop-Btl-08B-1-Roller-Chain-Din818-7-British-Std-5Mtr-/131991390744?hash=item1ebb4cca183 x 08B1-11 Sprockets half inch pitch, £1.97 each + £0.99 postagehttp://www.bearingsrus.co.uk/4sr11Motor speed controller , was purchased from Hong Kong but received in a week, £5.99http://www.ebay.co.uk/itm/DC-30A-12V-SoftStart-Reversible-Motor-Speed-Control-PWM-Controller-PWM/201944328448?ssPageName=STRK%3AMEBIDX%3AIT&_trksid=p2057872.m2749.l2648Second hand wiper motor from eBay removed from a ford Ka 98/08, £7All in all about the same price as a second hand garage door opener which was the other option but i had to basicly massacre it to make it work and not even sure if it would so this option was the best for me, the motor is moving a roof at 3m x 2m..the project will be finished shortly when a project box arrives to tidy all the cables and somewhere for the switch to sit, Thanks for watching....
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