3D Printed Flat Field Generator Adapter

[teoria_del_big_bang]

One good thing for me to come out of this prolonged period of cloud and rain is that I eventually got round to making this.

I obtained an Aurora Flatfield Panel sometime ago and was a bit fed up having to tape a couple of sheets of white paper to it to lower the intensity and then tape it on top of my scope everytime I needed to take flats. So it had been my intention to design and print something to make this easier.

I found that I needed a sheet or two of white paper in front otherwise was too bright for L R G & B filters, fine for NB filters so I bought another sheet of white translucent perspex that I cut to a round shape and can use this to sandwich these in between.

I have tried turning voltage down to reduce the brightness but if I use any form of electronic device to do so then I can see banding on the flats due to the leds flickering on and off and came to the conclusion I would have to use a rheostat or variable resistor, which I didn't have so have lived with the paper method for now. Maybe i will look at this next.

It is made to fit my Esprit but I can print a reducing ring to fit my smaller WO73.

 

Steve

Edited February 9, 2020 by teoria_del_big_bang

[saac]

Great looking design there , very secure and looks really professional as well. 

Jim