Hello 76doublebass,
I haven't tried cryo on a cartridge and I would not want to do it because of the delicate rubber suspension for the cantelever, as Nsgarch already mentioned. Albertpoter experiment just reinforces my reluctance.
Do you remember the investigation of the space shuttle Challenger disaster? Richard Feynman, the late Nobel physicist from Cal Tech, convincingly demonstrated the cause of the fatal accident on live national television. He did it with an elegant, simple experiment: he dunked a rubber O-ring into a glass full of ice water and showed how the cold o-ring turned brittle and could no longer seal properly!
With a much colder cryo treatment, the question is will the rubber ever regain its original elasticity? Better yet, what does the rubber have to gain from the treatment? I see mostly negative effects for the rubber and few if any beneficial ones. For a cartridge, the cryo treatment should probably be done without the rubber, prior to full assembly.
I haven't tried cryo on a cartridge and I would not want to do it because of the delicate rubber suspension for the cantelever, as Nsgarch already mentioned. Albertpoter experiment just reinforces my reluctance.
Do you remember the investigation of the space shuttle Challenger disaster? Richard Feynman, the late Nobel physicist from Cal Tech, convincingly demonstrated the cause of the fatal accident on live national television. He did it with an elegant, simple experiment: he dunked a rubber O-ring into a glass full of ice water and showed how the cold o-ring turned brittle and could no longer seal properly!
With a much colder cryo treatment, the question is will the rubber ever regain its original elasticity? Better yet, what does the rubber have to gain from the treatment? I see mostly negative effects for the rubber and few if any beneficial ones. For a cartridge, the cryo treatment should probably be done without the rubber, prior to full assembly.