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Old 19-02-2018, 09:50 PM
derku
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derku is offline
 
Join Date: Feb 2018
Location: Sydney
Posts: 8
flocking

So despite the inside of the tube being painted matte black, those properties were still far from the best when absorbing light, or more-so minimising internal reflections from unwanted light sources. I read up that adding flock inside the tube, would reduce oblique reflections and increase contrast. At this stage I thought it would be a great idea considering I would be using the telescope in an urban environment. Regrettably, I say this with emphasis... or perhaps a poor decision in hindsight, was to flock it traditionally using glue and flocking powder... this was before I realised there were adhesive strips...

Oh well, I had already invested in flocking powder and some PVA glue... so I was already committed to that. Painting a few segments of the baffles, whereby gluing them in at the same time, involved careful brushwork to ensure an even layer of glue ... but then a sprinkle here and sprinkle there resulted in my first flocked section of the tube!

You can still see the glue drying in this pic:
http://www.iceinspace.com.au/forum/a...3&d=1519037060



Closer up shot showing that the coverage was pretty good actually
http://www.iceinspace.com.au/forum/a...4&d=1519037060



Took a photo at the other end to see if the flock(and probably baffles) actually traps light, and this photo confirms that it does something... but not sure how to quantify
http://www.iceinspace.com.au/forum/a...5&d=1519037060



After the whole tube was flocked, you can see the baffles are all aligned and consistent meaning the calculator... or I should say the way I followed and didnt stuff up the calculators dimensions, produced the correct geometry as to not obscure the primary mirror in any way, yay! well, photo doesnt show the mirror but ill post it up when its all dry.
http://www.iceinspace.com.au/forum/a...6&d=1519037060
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