Dew shield for SkyWatcher 9x50 finder scope by ndupont

Last crawled date: 3 years ago

Warning a single wall is a bit thin and quite fragile, I will probably prepare and test a version with a thickness of at least 1mm.
Dew shield for the SkyWatcher 9x50 finder scope, that has a 57.4mm outer diameter.
EDIT : New THICK version with 2mm walls as the original design is prone to delamination
Length is 200mm.
I've printed it with 0.3mm layer height, and resized it to 101% in Cura before print, it slides smoothly on the scope.
It could be used on any other 50mm finders by just increasing the XY scale accordingly to the external diameter of your specific scope.
For minimal internal reflection, try to get it the mattest you can, by chosing a specific PLA or lowering the print temperature.MatteForge black filament gives great results (see pictures).
If printed with usual PLA, it could be a good idea to flock the interior with some adhesive black felt for visual use.
Time lapse : https://www.youtube.com/watch?v=nbW69UtOXfo