13x18 (5x7") insert for Paterson development tank
thingiverse
If you want to develop your 13x18cm (5x7 inch) sheet film in a Paterson System 4 development tank (the one for 1l liquid), you could use this insert. Print with ABS or PETG due to better chemical resistance than PLA. Use a good plastics glue like Uhu Allplast. Tested multiple times with 13x18cm sheet film, but use at your own risk, especially with 5x7 inch sheet film. For 5x7" I'd recommend shortening the uprights by about 3mm...
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