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Tuesday 11th June showers and overcast. I moved and rewired the overhead LED bulbs. One 1W red and one 75W equivalent white. In their original positions the telescopes cast heavy shadows. I have used a more powerful white LED light bulb, arranged more centrally to flood the dome with light. The dark, dome inside surfaces, soak up a lot of light. I shall need several lights if I paint the dome black inside.
I clipped the flat, PVC mains flex down the plywood arc of the observation slit to keep them out of the way. A U-bend at the bottom will avoid moisture running straight into the plugs.
A triple socket is now provided to allow isolation of the lights and observatory clock by unplugging. A battery could be used so that the lights were able to rotate with the dome. It just seems a lot of work for little gain. Not to mention finding suitable 12V bulbs.
I only rarely need to rotate the dome more than 180° so plugs and slack cables will suffice for the moment.
I really ought to consider using waterproof sockets, plugs and switches at some point. An earth rod for the observatory would make good sense. In order to earth the mounting and telescopes. Which have a "tickly" potential while connected to the 12V AWR drive system. This potential lights up test screwdrivers so it must be lethal.
I captured a video, through the slit, of the telescopes slewing but the background noises were deafening! There were several different birds calling in the trees just above the dome. Neighbour's children shouting and screaming on their trampoline. A cockerel crowing and a dog barking. The wind picked up enough to shake the entire dome where the camera was resting on the base ring. Which also caused wind noise. Which I hate.
Peace and quiet of the countryside? Dogh! To make matters worse there was a hairy old man in the observatory. Pulling strange faces and shuffling about like a clog dancer! No idea what he thought he was up to!
"Quiet on the set! Take 2! CUT!" Thank goodness the light has gone. 😎
I clipped the flat, PVC mains flex down the plywood arc of the observation slit to keep them out of the way. A U-bend at the bottom will avoid moisture running straight into the plugs.A triple socket is now provided to allow isolation of the lights and observatory clock by unplugging. A battery could be used so that the lights were able to rotate with the dome. It just seems a lot of work for little gain. Not to mention finding suitable 12V bulbs.
I only rarely need to rotate the dome more than 180° so plugs and slack cables will suffice for the moment.
I really ought to consider using waterproof sockets, plugs and switches at some point. An earth rod for the observatory would make good sense. In order to earth the mounting and telescopes. Which have a "tickly" potential while connected to the 12V AWR drive system. This potential lights up test screwdrivers so it must be lethal.
I captured a video, through the slit, of the telescopes slewing but the background noises were deafening! There were several different birds calling in the trees just above the dome. Neighbour's children shouting and screaming on their trampoline. A cockerel crowing and a dog barking. The wind picked up enough to shake the entire dome where the camera was resting on the base ring. Which also caused wind noise. Which I hate.
Peace and quiet of the countryside? Dogh! To make matters worse there was a hairy old man in the observatory. Pulling strange faces and shuffling about like a clog dancer! No idea what he thought he was up to!
"Quiet on the set! Take 2! CUT!" Thank goodness the light has gone. 😎
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