There isn't a need to exchange parts once they are in place. Board manufacturers get by with flash gold plated connectors because they are lower cost and the flash plating is only good for so many swipes before the connector cannot meet its original spec of contact resistance, current capacity, etc. The spec for PCI connector plating Finish 4 is a mere 2 mating cycles. If subject to any vibration like my pneumatic ATC exhibits on the machine it wiggles the contact surfaces just a little and chafes a bit more. My pick and place accelerates its carriage to maybe 1-2m/s with Sanmotion drives and servos. You can feel vibration & movement on the frame of the machine no matter how the 1600# machine is anchored down.
My Bridgeport probably started having connector issues after 20 years of use. Now maybe once a month I get a servo amp fault or other random issue related to the card cage. I remove the cards and clean PCB fingers with alcohol then insert the cards a number of times to get into fresh metal. This works again for a while. I just need something I can count on without the machine faulting. Then I would make more parts. Dennis On Wed, 23 Mar 2016 15:11 <bari00...@gmail.com> wrote: > > Do you have to exchange your SATA and PCIe devices very often? I only do > with my test systems. The controllers for machines might get a SATA or > PCIe device swapped once in it's lifetime of several years. ------------------------------------------------------------------------------ Transform Data into Opportunity. Accelerate data analysis in your applications with Intel Data Analytics Acceleration Library. Click to learn more. http://pubads.g.doubleclick.net/gampad/clk?id=278785351&iu=/4140 _______________________________________________ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
