RE: [CAD_CAM_EDM_DRO] Re: Jumper innovation?

I have on more than one occasion received jumpers that are missing the
internal contacts... the plastic shell by itself would fall off???

-----Original Message-----
From: cadcamcenter@... [mailto:cadcamcenter@...]
Sent: Monday, 10 September, 2001 5:03 PM
To: CAD_CAM_EDM_DRO@yahoogroups.com
Subject: [CAD_CAM_EDM_DRO] Re: Jumper innovation?


"Carol & Jerry Jankura" <jerry.jankura@s...> wrote:

>
> Are your jumper blocks the standard 0.025 square on 0.1 inch

centers? If so,

> you might want to try wire wrapping the "correct" configuration.

That way,

> it's easy to make a change. Personally, I don't like soldering to

jumper

> blocks because it can be a real pain when you want to reconfigure

them.

How does one wire wrap the configuration?

> Any idea about the CAUSE of them not wanting to stay seated?

Excessive

> vibration, perhaps. There's lots of equipment with jumpers that

functions

> without any problems like you describe. You may want to try to

analyze

> exactly WHY they are unseating themselves and try to fix that

problem.

Haven't finish soldering the board yet. They jus fall off when the
board is manipulated - there is no "click" feeling when they are
press on, so it must be from a lack of friction/tightness.

Thanks for responding

Peter
:


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