Telescope solar filter clip-on holder with lids (102/117mm diameter)

thingiverse

This solar filter, designed for astronomy purposes, consists of four parts: the top lid, foil fixation ring, main mount, and bottom lid. It securely attaches to a telescope without scratching it and can be easily removed. Assembly involves placing two cardboard or foam rubber rings and a sun filter disc in a specific order, with an optional glue for added security. For installation, adjust the clips as needed for proper fit on your telescope. Printing requires adjustments for support-free printing, and specific settings on an UP PLUS printer. The fixation ring is designed to be a tight fit, but may need calibration depending on your printer. Two zip files are included with printed parts and minor modifications. Possible feature improvements include adjustable gap between main ring and fixation ring, thinner parts for material savings, and increased top lid diameter for better dust protection. But remember, never point a telescope at the sun without proper filtering, as it can cause instant blindness due to even the smallest gaps in filters.