50mm Finderscope / Guide Scope Bahtinov Mask

prusaprinters

<p>This a a Bahtinov mask and a holder for a 50mm &nbsp;Bigking Finderscope with a focal length of 190mm.</p><p>Two masks are included, one is a bit more open.</p><p>The outer diameter of the mask is 61mm and it might fit similar finderscopes from other brands.<br>It's designed so that the holder and the mask are printed separatly. That allows you to quickly change the mask for a different design without printing a different holder.</p><p>The mask itself is 1mm thick and prints in 16 to 20 minutes. I have used PTEG but PLA should be fine.</p><p>You just put the mask into the holder and then put both on to the finderscope. It's not a tight fit but the scope is probably pointing upwards so it shouldn't come off.</p><p>The mask itself has been created by this awesome tool: <a href="https://satakagi.github.io/tribahtinovWebApps/Bahtinov.html">https://satakagi.github.io/tribahtinovWebApps/Bahtinov.html</a><br>If you want to design your own mask you just have to enter the focal length and the outer diameter. Please pay intention to the scaling - I had to upscale the SVG in Fusion360 by 1.33333 to get it to the correct dimensions.</p><p>This is my first model but I have many more to share. Comment and let me know what you think.</p><p>Clear skies!</p>