Phil,

If you're checking out machines with a joystick or similarly controlled
movable table (X - Y axis), make sure that the motion control features
permit accurate scanning under the highest magnification.  Under low mag
conditions, a stage with too much acceleration, jerkiness or too coarse an
increment can still look OK.  When the image is highly magnified, those
faults become incredibly frustrating because you do not have precise enough
control over the table to pass smoothly from one point to another along your
specimen.  Even though a system may have a "FAST / SLOW" feature, try it
out!

Bruce Tostevin
Benchmark Electronics
Hudson,NH

> ----Original Message-----
> From: Phil Nutting [SMTP:[log in to unmask]]
> Sent: Friday, October 26, 2001 10:38 AM
> To:   [log in to unmask]
> Subject:      [TN] Looking for Industrial X-ray machine
>
> As a follow on topic to the encapsulating voids, we periodically have
> the need for a system to x-ray failed potted assemblies to determine the
> cause of failure.  Sometimes this can be accomplished by sawing the unit
> in half, but sometimes we need to look inside without destroying the
> item.  We could build a system, but a recent sanity check suggested that
> by buying an industrial unit it would come with all the necessary
> guards, precautions and certifications that a home made unit might not.
>
> Our sample size is usually no larger than a 6 inch cube.  Naturally
> tomorrow someone will need to x-ray something larger than a six inch
> cube so a little flexibility would be nice.
>
> I'm interested in knowing what is out there, what is good and bad and
> relative cost.
>
> I can be contacted offline at [log in to unmask] or
> 978-922-9300.
>
> Thanks in advance,
>
> Phil Nutting
>
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