Andrew Gabriel:
But also to clean the build-up of magnetic material on floppy disc readers'
heads.
Do anybody here use a pencil (or even, for thick oxydations, pen) eraser to
clean contacts?
- posted 11 years ago
Electrical Contact Material
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- posted 11 years ago
It's not at all clear what the OP is trying to do. Seems like a
little gold flash over his phosphur bronze might get rid of the oxide
issue?
George H.
George H.
- posted 11 years ago
When I was a lad we used erasers to clean the power rails of our slot
car track.
George H.
George H.
- posted 11 years ago
F. Bertolazzi Inscribed thus:
Yes ! I've used pencil erasers to clean fingering on PCB contacts.
Yes ! I've used pencil erasers to clean fingering on PCB contacts.
- posted 11 years ago
John Fields Inscribed thus:
Certain types of gaming machines use a stack of rotating disks of SRBP material, similar construction to a HDD platter stack, with phosphor bronze contact strips and sterling silver studs to determine payout values. The contact strips when not in contact with the studs are in continuous contact with the SRBP disk. Surprisingly over a long period of time grooves are formed in the SRBP disk surface. Since there is 240v 50Hz present on the contact studs, debris from the continual friction can cause arcing and breakdown of the SRBP material. The point being is that these things run reliably for years without maintenance.
Certain types of gaming machines use a stack of rotating disks of SRBP material, similar construction to a HDD platter stack, with phosphor bronze contact strips and sterling silver studs to determine payout values. The contact strips when not in contact with the studs are in continuous contact with the SRBP disk. Surprisingly over a long period of time grooves are formed in the SRBP disk surface. Since there is 240v 50Hz present on the contact studs, debris from the continual friction can cause arcing and breakdown of the SRBP material. The point being is that these things run reliably for years without maintenance.
- posted 11 years ago
Our field service staff had a sort of glass fiber propelling pencil
for that. It was like a very thick propelling pencil, but instead of
pencil lead, it had a dense mass of fine glass fibers, which wore
down over time.
- posted 11 years ago
Even with gold there is still the issue of having to clean the
contacts.
P.S.: I don't know if anyone else has this issue, but Google Groups will not let me post in another thread here that I started called. Making cables". I've attempting to post a response for the last three days. Has anyone else had a problem like this?
Thanks.
Darren Harris Staten Island, New York.
P.S.: I don't know if anyone else has this issue, but Google Groups will not let me post in another thread here that I started called. Making cables". I've attempting to post a response for the last three days. Has anyone else had a problem like this?
Thanks.
Darren Harris Staten Island, New York.
- posted 11 years ago
- posted 11 years ago
- posted 11 years ago
- posted 11 years ago
- posted 11 years ago
When I was an amusement machine repairmen, the company issued a thing that
the boss called a "fiberglass eraser" for cleaning edge connector contacts.
It was just a bundle of stiff glass fibers in a plastic tube with a screw to extend the bundle of fibers as they wore down, and it worked a treat!
It didn't leave any rubber residue like a pencil eraser might have.
Cheers! Rich
It was just a bundle of stiff glass fibers in a plastic tube with a screw to extend the bundle of fibers as they wore down, and it worked a treat!
It didn't leave any rubber residue like a pencil eraser might have.
Cheers! Rich
- posted 11 years ago
To me, it sounds like a homework problem; I invented some contacts once;
actually, I rescued them from a retired relay and just changed the
mechanical configuration; this guy sounds like he's trying to reinvent the
whole concept of relay contacts, or either he's a troll, twitting us all.
Isn't it frustrating when someone comes in and asks a question, and answer after answer, he says, "No, that's not it..."
After about three of those kind of responses, I just put them on my "ignore" list. Sometimes I say, "Well, what the hell _do_ you want to hear?"
Cheers! Rich
Isn't it frustrating when someone comes in and asks a question, and answer after answer, he says, "No, that's not it..."
After about three of those kind of responses, I just put them on my "ignore" list. Sometimes I say, "Well, what the hell _do_ you want to hear?"
Cheers! Rich
- posted 11 years ago
WHAT THE FUCK ARE YOU TRYING TO ACCOMPLISH? People have been doing
this stuff for decades! What's impelling you to reject every reasonable
answer you've gotten? Are you on a secret mission from an alien planet
or what?
Or are you just another damned troll?
Thanks, Rich
Or are you just another damned troll?
Thanks, Rich
- posted 11 years ago
Andrew Gabriel:
Yes, it's an eraser for china ink used by achitects on tracing paper. Very effective. Maybe too much.
Yes, it's an eraser for china ink used by achitects on tracing paper. Very effective. Maybe too much.
- posted 11 years ago
John Fields:
Now I understand why you had to deal with drydocks. Usually those places are populated with retarded monkeys, you did not seem to fit wery well there (apart from the fact that you're an asshole. Now we're even, peace).
I've been on board one of those "oceanographic" vessels. Their base in the west Mediterranean is in La Spezia, 100 km from here. Yeah, sure, nothing to deal with russian submarines. ;-)
A couple of weeks ago I "repaired" a friend's "boom box" the same way.
Now I understand why you had to deal with drydocks. Usually those places are populated with retarded monkeys, you did not seem to fit wery well there (apart from the fact that you're an asshole. Now we're even, peace).
I've been on board one of those "oceanographic" vessels. Their base in the west Mediterranean is in La Spezia, 100 km from here. Yeah, sure, nothing to deal with russian submarines. ;-)
A couple of weeks ago I "repaired" a friend's "boom box" the same way.
- posted 11 years ago
It would appear the OP does not really know what he wants, cannot explain
it, and it "rolls" each time he learns a little more about what he wants by
reading posts.
It's not at all clear what the OP is trying to do. Seems like a little gold flash over his phosphur bronze might get rid of the oxide issue?
George H.
It's not at all clear what the OP is trying to do. Seems like a little gold flash over his phosphur bronze might get rid of the oxide issue?
George H.
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