8x10 inch development spool

thingiverse

This is my attempt for creating an 8x10 inch development spool for being used in the larger JOBO 25xx series of development tanks (typically used in JOBO CPE/CPA/CPP or ATL rotational film processors). It is derived/upscaled from my 13x18cm spool for Paterson development tanks (see here: https://www.thingiverse.com/thing:3465241). *** this can be used for 18x24cm sheet film, too part list 8x10 jobo spool (2x) 8x10 jobo brace 1 (3x) or 18x24 jobo strebe (3x) 8x10 jobo brace 2 (4x) or 18x24 jobo andrucksteg (4x) 8x10 jobo axis base (1x) 8x10 jobo axis extension (1x) a little bit plastic glue Hints: As I didn't have an original axis during design, I assumed the JOBO axis to be the same diameter as PATERSON, so the holes for the axis are slightly too big. Therefor I created the two axis parts - modify the axis extension to adapt the length to your own development tank. Disclaimer: I created and printed this spool for a friend (I don't shoot/develop 8x10), so the spool is currently only "dry tested" with some sheets of already developed film. But I am quite conscious that it works well under real world conditions. Update 2019-03-29: I got feedback that the two parts for 18x24cm were some millimeters two long. I updated both, so that they are 180mm long (assuming 18x24 film has a real width of 178mm).