13 Jan
2005
13 Jan
'05
4:20 a.m.
From: "Vintage Computer Festival"
<vcf(a)siconic.com>
On Thu, 13 Jan 2005, Paul Koning wrote:
I don't suppose anyone ever manufactured a laser-based paper tape punch?
Is that even feasible?
Hi
Sure, it could be done. The only reason it hasn't
been done was that the medium was obsolete by the
time the LASERs were ready.
I used to have fun with a 20W CO2 LASER. I could
control it well enough to remove 6 or 7 layers of
paper. Each time I'd cut a little deeper. It would
make a pop sound and some of the paper would just
be disappear :)
Dwight
>>>> "William" == William Donzelli <aw288(a)osfn.org> writes:
William> .... Some of the things were
William> pretty cool - a 400 cps (!) paper tape punch, ...
Wow. I've love to see one of those. The fastest I have seen was, I
think, a 120 cps punch. Listening to one of those running at full
speed is pretty impressive.
Paper tape readers can go much faster (I've seen 2000 cps) but those
are optical readers, so the job is far easier.