Or dampen computer vibrations with rubber or something similar, it might work better if computer is made a little bit heavier.
On Thu, 24 Mar 2016 17:17:26 +0800 TJoseph Powderly <tjt...@gmail.com> wrote: > i used to use a liquid chemical for hifi snobs called 'tweak' > http://www.whatsbestforum.com/showthread.php?1652-Contact-Cleaning-The-Right-Stuff > > but old dollar bills worked well too due to rag content ( does not apply > to new plastic money ) > > i read once that connectors really only had single point contact > so (hehe) maybe solder your bus connectors? > > btw use 90% alco not the cheap 70% > test for pcb cleaner: pour it on your hand.. dries invisible or white? = > ok, else dont use it > hth tomp > > On 03/24/2016 05:39 AM, ceen...@in-front.com wrote: > > 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 > > > ------------------------------------------------------------------------------ > 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 ------------------------------------------------------------------------------ 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
