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Just realized ultrasonic cleaning is overrated after what I saw at the Columbus repair meetup
Everyone on here swears by ultrasonic cleaners for shutter assemblies, but I watched a guy at the Columbus repair meetup last month strip a leaf shutter down to bare plates and clean it with nothing but a soft brush and a squeeze bulb. He said the ultrasonic was causing the thin brass blades to vibrate against each other and develop tiny stress marks he kept finding under his loupe. I tried his method on a 1950s Compur shutter that had been sitting in a barn for 20 years and it fired clean on the first test roll. So are we all just cooking our parts because it is fast, or has anyone else actually looked at the blades after a few ultrasonic cycles?
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kellyj236d ago
The loupe point is the part people skip. Everyone checks if the shutter fires right after cleaning and calls it done, nobody looks at the blade edges a week later. Soft brush and a bulb makes sense too because you're not blasting solvent into the pivot points where old grease turns into glue. Half the shutter jobs I see fail aren't from dirt at all, they're from lube getting pushed where it shouldn't be. Slow cleaning forces you to actually look at each plate instead of dunking the whole thing and hoping.
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