35mm development reel

thingiverse

This project is still in development, with some features yet to be fully implemented. As of June 4th, 2020, the device can currently hold approximately sixty feet of film. Several areas require improvement or additional notes: the central core has not been completed or optimized for its intended purpose. If used, it's recommended to trim the end of the film at a slight diagonal or point and secure it with tape. Initiating the film process can be challenging, but once started, the device operates smoothly. To load the film successfully, ensure that it is slack and wind it onto the spool while turning the spindle clockwise with one hand and guiding the film at a 90-degree angle to the spool with the other hand. The film will guide itself into the groove and load properly as long as there is no tension on the roll. To obtain the desired result, I initially designed the device around a three-gallon bucket equipped with a Gamma lid for the tank. However, after acquiring an old stainless steel tank, I modified the design accordingly. Unfortunately, this new tank lacks a convenient method for adding water without disrupting the light source and dumping it in. Originally, I had planned to create a plastic bucket and Gamma lid that would be light-tight, with a central tube designed for chemical injection through the lid. Although this plan was later abandoned due to the stainless steel tank, I have made adjustments to accommodate its unique requirements. A 0.586 AFBMA thread has been implemented at the top of the tank for easy access and connection. If using a plastic bucket in the future, I would extend the vertical tube to breach the Gamma lid and design light-proof components to match. However, these details are left to the user's discretion. Through continued development and refinement, this device now operates effectively. It is essential not to dry film in it, as it will stick together when wet. When initially loading the film, run it from the center outwards through the bag, and the device should produce a smooth "clack-clack-clack" sound or a gentle "fiffle," indicating that the film is securely loaded. CHANGELOG: June 11th, 2020: A CAD problem in main dev1 has been resolved. Although this fix did not affect the printed product, as it was too small and my slicer ignored it, the updated file should now be clean and free of errors.