Thingiverse
Bahtinov for small build platforms by egil
by Thingiverse
Last crawled date: 4 years, 5 months ago
If your telescope is larger than your 3D printer, look no further :)
This is a parametric Bahtinov focusing mask split into two or four sections so you can fit your printer. It is based on brentb's original one-piece design.
The Bahtinov mask is a focusing aid for astronomy, and is particularly useful for astrophotograpy. The orignal creator is Pavel Bahtinov. A good description is available here: http://www.nightskyimages.co.uk/bahtinov_mask.htm
The design shown is for a 224mm (8 inch) mask optimized for a focal length of 1000mm. You probably will want to use the Customizer or the OpenScad file to optimize the mask for your particular telescope. A calculator for optimum Bahtinov design factors is available here: http://astrojargon.net/MaskGenerator.aspx
There was a problem with printing the 4th segment when using the customizer which is now fixed. It always worked fine in OpenScad.
This is a parametric Bahtinov focusing mask split into two or four sections so you can fit your printer. It is based on brentb's original one-piece design.
The Bahtinov mask is a focusing aid for astronomy, and is particularly useful for astrophotograpy. The orignal creator is Pavel Bahtinov. A good description is available here: http://www.nightskyimages.co.uk/bahtinov_mask.htm
The design shown is for a 224mm (8 inch) mask optimized for a focal length of 1000mm. You probably will want to use the Customizer or the OpenScad file to optimize the mask for your particular telescope. A calculator for optimum Bahtinov design factors is available here: http://astrojargon.net/MaskGenerator.aspx
There was a problem with printing the 4th segment when using the customizer which is now fixed. It always worked fine in OpenScad.