4x5 sheet film dryer

This is a 4x5 sheet film dryer with air filter and fan. It can keep sheets clean during the drying.

It work with mixed dry rack for 4x5 negs (https://www.printables.com/model/1213507-dry-rack-for-4x5-negs).

Part List

12cm cooling fan

12cm fan guard

PWM fan controller

D100mm H21mm HEPA filter (D90mm H25mm is also good for this)

M4*30 button head screw(with H25mm fan)

M4*4*5 heat insert

12V power supplier

Assembly