Great video, thank you. An old school local guy advised me to use only a business card. Said files and such take off a plating of some sort. I'm trying to learn all of this mess lol
Business cards work well for stuff that hasn’t sat in a basement for 20 years. :) I found that files take a lot of material away unnecessarily. Unless the switch pads are pitted, they just need cleaned. The dremel brush polishes them up quickly and easily with no physical damage.
I haven’t found them doing anything like bending them out of shape. Seems to work fine. Unless you bend them at the base, the switches usually pop right back where they were.
I have used ultrasonic cleaners. They work pretty well. Never used them to clean switches though. WD60 or whatever is probably not a good idea in this application. My efforts are to get the old grease and dirt off of and out of the machine. Those contact cleaner type products just spray stuff everywhere and get the old grease all over other parts. Not out on a rag or something.