Micro 4/3 to Pentax K Mount Adapter

thingiverse

I have designed this part specifically for use with a Pentax-M f1.7 50mm lens mounted on my Panasonic G7. After countless hours of refining the dimensions, it is now finely tuned to perfection. Your printer may vary. Included are Inventor 2017 part files, STLs, 100% infill region files, IDW drawings, and PDF Drawings. Print Settings: Printer Brand: Printer: Printrbot Rafts: No Supports: No Notes: Use 1.75mm PLA on a PrintrBot Simple Metal 2015 with an E3Dv6 Hotend, Mic6 Heated Bed, and Kapton Tape. Apply 40% infill in the slicer, use Region Modifier .STLs as 100% infill regions. Use high-opacity black filament; light colors will distort the image due to ambient light. Post-Printing: Step 1: Cleanup Clean up both parts thoroughly, removing sharp edges and cutting out drooping bridge filaments. Then test fit both parts into their respective mounts, ensuring a smooth but snug fit. Next, fit the parts together, sanding or cutting as necessary. Step 2: Align Lens Fine-tune the correct "flange focal distance" by mounting to a tripod and setting up a scene with sharp features at infinity focus (e.g., the moon, skyscrapers, mountains). Set the lens to infinity focus and then slide the forward mount until far-away objects are in perfect focus. Secure it in place using a few drops of super glue on the outer seam. Ensure the lens is square to the body flange and triple-check your focus. Step 3: Glue Reinforce with more glue by applying a generous amount of 2-part epoxy to both inside and outside seams. As it sets, verify that focus has not shifted. During the curing process, use a finger wet with alcohol to smooth out any imperfections around the seams. Allow it to cure for 24 hours. Step 4: Finish Sand the inside and outside surfaces (avoid deforming the mounts!). Paint the inside surface with matte black spray paint (to prevent reflective distortions). Strive for a matte finish as dark as possible. You can also paint the outside if desired.