On Thursday 02 November 2017 10:32:28 jrmitchellj . wrote:
> The best contact cleaner I have ever used is De-Ox-It from Caig Labs.
> (the red stuff)
> I have restored millions in broadcast and television equipment to
> proper service with it.
>
> It is amazing how much grub it get off connectors,
I use that stuff a lot too when I'm repairing electronics gear like my
old Tek and HP scopes. They still recommend alcohol and the non-clay
based paper as the means to clean gold contacts though.
Mark
On 11/02/2017 10:32 AM, jrmitchellj . wrote:
The best contact cleaner I have ever used is D
The best contact cleaner I have ever used is De-Ox-It from Caig Labs. (the
red stuff)
I have restored millions in broadcast and television equipment to proper
service with it.
It is amazing how much grub it get off connectors, without harming the
plating at all.
Ray
--J. Ray Mitchell Jr.
jrmitc
On 11/02/2017 03:09 AM, Marcus Bowman wrote:
If there are plug-in cards or gold plated edge connectors anywhere, unplug, rub
with an eraser, dust clean and re-insert. Might help remove stray capacitance.
I've just had trouble with a set of plug-in cards on a machine here (not
control cards, bu
Peter, et al,
I will check that too at the next opportunity. Thanks everyone for all of
the suggestions.
Regards,
Eric
I would check that you get decent differential voltages across the 7I33
inputs in both states of the inputs (no less than +-2.5 across the A,/A B,/B
or Z,/Z pairs in any state)
If there are plug-in cards or gold plated edge connectors anywhere, unplug, rub
with an eraser, dust clean and re-insert. Might help remove stray capacitance.
I've just had trouble with a set of plug-in cards on a machine here (not
control cards, but the same principle applies).
Marcus
On 2 N
On Wed, 1 Nov 2017, Eric H. Johnson wrote:
Date: Wed, 1 Nov 2017 19:25:36 -0400
From: Eric H. Johnson
Reply-To: "Enhanced Machine Controller (EMC)"
To: "'Enhanced Machine Controller (EMC)'"
Subject: [Emc-users] Odd encoder problem
All,
A machine (table) that has been running for about
Once have I a connection where only fast signal worked. In turned out the
signals were coupled with a capacitor that was to small to pass low
frequency. Of course no capacitor was designed into the system but a
loose solder joint was acting like a capacitor. Actually what else is a
cap, but two
On Wednesday 01 November 2017 20:14:07 andy pugh wrote:
> On 1 November 2017 at 23:25, Eric H. Johnson
wrote:
> > The problem is in the A axis. It seems to be
> > losing encoder counts at very low speed, but not otherwise. It took
> > a bit to track down because when I initially had it moving mu
Andy,
That sounds plausible, I will check at the next opportunity.
Thanks,
Eric
On November 1, 2017 8:14:07 PM EDT, andy pugh wrote:
>On 1 November 2017 at 23:25, Eric H. Johnson
>wrote:
>
>> The problem is in the A axis. It seems to be
>> losing encoder counts at very low speed, but not othe
On 1 November 2017 at 23:25, Eric H. Johnson wrote:
> The problem is in the A axis. It seems to be
> losing encoder counts at very low speed, but not otherwise. It took a bit to
> track down because when I initially had it moving multiple rotations I could
> not get any errors running A by itself
Gregg,
I did that, well mostly. I rechecked and tightened every encoder connector,
although not necessarily disconnecting and reconnecting.
The housing for the line drivers rides in the gantry, so is in motion. Those
were the first connectors I checked.
I can do a more thorough job, but saw no
Basics first. Disconnect power, unplug and re-connect all plugs, loosen and
tighten all screw terminals. Re-test. Eliminates any minor corrosion or
possible looseness causing an intermittent.
On Wednesday, November 1, 2017, 5:47:05 PM MDT, Eric H. Johnson
wrote:
All,
A machine (t
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