Absolutely, that would surely be a very shock free way of doing things. But
if the oscillators are THAT weak, wouldn't they be unusable in most
situations. I'm going to try a new crystal and hope that it was a one-off
and that the module won't fail in it's eventual environment....

Ben

----- Original Message -----
From: Mike Kendall <ke6cvh@THE-I.NET>
To: <PICLIST@MITVMA.MIT.EDU>
Sent: Friday, August 17, 2001 6:29 PM
Subject: Re: [PIC]: Oscillator leads


> How about using a jewelers file.  I've done this for cutting steel cable
> going through housings.  The cutters would fray the wire no-matter how it
> was cut.  A piece of heat shrink, then filing through the heat shrink and
> cable (in this case a lead) will really work wonders as far as shock
> elimination and fraying.
> Regards,
> Mike
> ----- Original Message -----
> From: Alan B. Pearce <A.B.Pearce@RL.AC.UK>
> Sent: Friday, August 17, 2001 3:02:05 AM
> To: <PICLIST@MITVMA.MIT.EDU>
> Subject: Re: [PIC]: Oscillator leads
>
> > >> >shockwaves going up the lead
> > >
> > >A snip that makes a cut-off fly across the room will cause
> > >the equivalent force to go into the part that didn't. Maybe
> > >you weakened the crystal and made it susceptible to
> > >over-driving failure. As noted in threads about using crystals
> > >in rocketry and projectile applications, crystals will tolerate
> > >mechanical stresses in some directions but not others
> >
> > Not when you use shockless cutters (see my previous post on this thread)
> The
> > cutters produce a flat cut on one side and that means there is no wedge
> > formed to push the lead back in that direction. All the energy goes into
> > pushing the portion of the lead with the wedge on it. I will try some
> ASCII
> > art.
> >
> >
> >                 | /
> > --------------| |/  /--------
> >   component   |    /  excess
> >     lead      |    \  lead
> > --------------| |\  \--------
> >                 | \
> >  <- no force   cutter  force applied ->
> >                blades
> >
> > --
> > http://www.piclist.com hint: The PICList is archived three different
> > ways.  See http://www.piclist.com/#archives for details.
> >
>
> --
> http://www.piclist.com hint: The PICList is archived three different
> ways.  See http://www.piclist.com/#archives for details.
>
>
>

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