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Bought a $450 ultrasonic cleaner, ruined two shutters, back to hand cleaning
Picked up a decent sized ultrasonic tank back in March thinking it would speed up my shutter cleaning jobs. Ran a few test parts fine, so I threw in a full Copal shutter assembly without thinking. The blades came out pitted and the timing was completely off. Second one did the same thing. Turns out the frequencies agitate loose dirt, but also knock thin blade edges against each other. $450 down and two customers waiting an extra week. Anyone else had bad luck with ultrasonics on delicate parts, or is there a trick to making them work without destroying stuff?
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rowan27d ago
My buddy did the same thing with a vintage watch movement, figured if it works on carbs it works on everything. That's the trap with tools that brute force their way through a job, they don't know the difference between grime and delicate parts. Ultrasonics are great for solid chunks of metal, not hair thin blade edges rattling around in a bath.
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