rubycons baked dry in 8 years flat

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  • kc8adu
    Super Moderator
    • Nov 2003
    • 8832
    • U.S.A!
    #1

    rubycons baked dry in 8 years flat

    not 1 of these rubycons are good.
    all very high esr.
    its what happens when you cram a bunch of electronics in a box with no ventilation.
    we see a ton of these.
    caps are just a minor issue with these.everything else gets cooked too.
    7-8 years of 24/7 and these units need a total rebuild.
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    • gdement
      Badcaps Veteran
      • Jan 2007
      • 690
      #2
      Re: rubycons baked dry in 8 years flat

      YK series are basic general purpose caps. They should be using something high endurance and 105C.

      But granted the caps weren't the only thing bad.

        Comment

        • 370forlife
          Large Marge
          • Aug 2008
          • 3112
          • United States
          #3
          Re: rubycons baked dry in 8 years flat

          Our school's cnc machine has a acu-rite almost like that one. Has a 166mhz MIPS processor and 6 megs of ram, is that what that is? Probalby the same everything except the outside shell and the keypads in the front.

            Comment

            • willawake
              Super Modulator
              • Nov 2003
              • 8457
              • Greece
              #4
              Re: rubycons baked dry in 8 years flat

              do you modify with ventilation?
              capacitor lab yachtmati techmati

                Comment

                • 370forlife
                  Large Marge
                  • Aug 2008
                  • 3112
                  • United States
                  #5
                  Re: rubycons baked dry in 8 years flat

                  Originally posted by 370forlife
                  Our school's cnc machine has a acu-rite almost like that one. Has a 166mhz MIPS processor and 6 megs of ram, is that what that is? Probalby the same everything except the outside shell and the keypads in the front.
                  Actually, if i remember right, our school's has a LCD, not a CRT, and the processor is up against the back of the case, and the heatsink sticks out of the case and vents out into the open.

                    Comment

                    • kc8adu
                      Super Moderator
                      • Nov 2003
                      • 8832
                      • U.S.A!
                      #6
                      Re: rubycons baked dry in 8 years flat

                      the heatsink on the rear is the power supply.
                      a few newer ones have lcd's
                      and no i dont mod the case for ventilation.
                      its a waste anyway as the operator cant be bothered to clean fan filters .

                        Comment

                        • Per Hansson
                          Super Moderator
                          • Jul 2005
                          • 5895
                          • Sweden
                          #7
                          Re: rubycons baked dry in 8 years flat

                          kc8adu; you could always have a fan inside that unit
                          Air blowing around is always better than air standing still
                          Some of our (IMO) better CNC machines just move the air around in the electrical cabinets, they don't let any new air in. And therefore they stay clean and nice inside!
                          (Well, the best ones have a watercooling radiator inside the eletrical cabinet but oh well, hope they never spring a leak lol!)
                          "The one who says it cannot be done should never interrupt the one who is doing it."

                            Comment

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