On Thu, 31 May 2007 19:42:42 -0700, the renowned xray
wrote:

On Tue, 08 May 2007 16:56:31 -0500, Spehro Pefhany
wrote:

On 8 May 2007 10:52:15 GMT, the renowned jasen
wrote:

On 2007-05-08, Spehro Pefhany wrote:

It's also an inexpensive source of small bits of SS shim stock. ;-)

3.5" floppy disks are too

Bye.
Jasen

Eraser shield: 0.0038" SS (0.1mm?)
3.5" floppy window: 0.014" plastic or 0.0073" SS


Sounded thin. You made me check. My eraser shield, probably from the
'60s, seems to be .0051" . (I have no way to measure just the areas
close to my most frequent mistakes -- maybe a bit thinner.) Another case
of the cheapening of modern products?

Maybe they didn't have the technology to make it that thin back then?
;-)

Hmm. Just noticed there is a very slight cylindrical curve to the
device. I was never instructed about that, or forgot, seems the proper
application would be convex down?

Dunno, I don't recall any formal training in using a shield. I barely
remember using a drafting table with the arm etc. in high school.