Dew shield for SkyWatcher 9x50 finder scope
thingiverse
Warning: A single wall is extremely thin and somewhat fragile, so I'll probably prepare and test a version with at least 1mm thickness. Dew shield designed specifically for the SkyWatcher 9x50 finder scope, which features an outer diameter of 57.4mm. EDIT: New THICK version with 2mm walls has been added because the original design is prone to delamination. Length is 200mm. I printed it using a 0.3mm layer height and resized it to 101% in Cura before printing, resulting in smooth sliding on the scope. It can be used on any other 50mm finder by simply increasing the XY scale according to the external diameter of your specific scope. For minimal internal reflection, try to get it as matte as possible by choosing a specific PLA or lowering the print temperature. MatteForge black filament gives great results (see pictures). If printed with usual PLA, it's a good idea to flock the interior with some adhesive black felt for visual use. Time lapse: https://www.youtube.com/watch?v=nbW69UtOXfo
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