10 Apr 2011, 18:37
After two months of trying to fix the sticky switch in my Filco with mechanical repetition and the Keyboard Company gracefully ignoring my emails regarding the issue, I decided to grab the good old solder iron and see for myself, what the problem was. I desoldered the switch and took it apart. The slider itself was defective, the both sides having an asymmetrical profile and different thickness. Also, the other side of the slider had a notch of material removed whereas the other side didn't.
Actually, the slider is so badly deformed that it is a great mystery to me how that switch passed both Cherry and Filco quality control. At the moment, I don't have the means to provide a decent macro photo of the said slider, but I will try later when I get access to a camera.
Anyway, now I will have to harvest a switch from the Pause/Break key and replace that with something - probably a spare blue switch I have. Unfortunately I have run out of desoldering braid, so that's it for the evening.