10 Jun
2006
10 Jun
'06
8 p.m.
I'm pretty sure I could design and build a paper tape punch and reader
that uses plain old cash register tape and winds the tape on old microfilm
spools. Assuming the sprocket and data holes match standard paper tape,
what are some other caveats to look out for?
--
David Griffith
dgriffi at cs.csubak.edu
A: Because it fouls the order in which people normally read text.
Q: Why is top-posting such a bad thing?
A: Top-posting.
Q: What is the most annoying thing in e-mail?
10 Jun
10 Jun
9:57 p.m.
On 6/10/2006 at 5:00 PM David Griffith wrote:
I'm pretty sure I could design and build a paper
tape punch and reader
that uses plain old cash register tape and winds the tape on old microfilm
spools. Assuming the sprocket and data holes match standard paper tape,
what are some other caveats to look out for?
David, I don't think that cash register tape would be robust enough.
Remember that paper tape was robust enough to go through the meatgrinder of
an ASR 33--and for those who had to use a tape over and over again, there
was mylar-coated tape.
You know, paper tape's still very much around in the CNC field. Here's a
supplier:
http://www.wncsupply.com/mylar.html
There are others. Admittedly, it's not cheap, but how many thousand feet
are you planning to punch?
Cheers,
Chuck
11 Jun
11 Jun
12:25 a.m.
On Sat, 10 Jun 2006, Chuck Guzis wrote:
On 6/10/2006 at 5:00 PM David Griffith wrote:
Well, it seems that the paper tapes are cheap enough for casual fiddling
around. There's my source for media.
--
David Griffith
dgriffi at cs.csubak.edu
A: Because it fouls the order in which people normally read text.
Q: Why is top-posting such a bad thing?
A: Top-posting.
Q: What is the most annoying thing in e-mail?
I'm pretty sure I could design and build a
paper tape punch and reader
that uses plain old cash register tape and winds the tape on old microfilm
spools. Assuming the sprocket and data holes match standard paper tape,
what are some other caveats to look out for?
David, I don't think that cash register tape would be robust enough.
Remember that paper tape was robust enough to go through the meatgrinder of
an ASR 33--and for those who had to use a tape over and over again, there
was mylar-coated tape.
You know, paper tape's still very much around in the CNC field. Here's a
supplier:
http://www.wncsupply.com/mylar.html
There are others. Admittedly, it's not cheap, but how many thousand feet
are you planning to punch? 
13 Jun
13 Jun
11:05 p.m.
On Saturday 10 June 2006 09:57 pm, Chuck Guzis wrote:
You know, paper tape's still very much around in
the CNC field. Here's a
supplier:
http://www.wncsupply.com/mylar.html
Not nearly as much as it was some decades ago...
Most of the folks that I see in the various CNC-related lists that I hang out
in are looking at a computer tied to the machine, and connected to the CAD
system by way of a LAN link, or similar. I don't know how much paper tape
is seeing use in the regular machine shops, but again I get the impression
that it's really not all that much these days.
--
Member of the toughest, meanest, deadliest, most unrelenting -- and
ablest -- form of life in this section of space, a critter that can
be killed but can't be tamed. --Robert A. Heinlein, "The Puppet Masters"
-
Information is more dangerous than cannon to a society ruled by lies. --James
M Dakin
10 Jun
10 Jun
10:01 p.m.
David Griffith wrote:
I'm pretty sure I could design and build a paper
tape punch and reader
that uses plain old cash register tape and winds the tape on old microfilm
spools. Assuming the sprocket and data holes match standard paper tape,
what are some other caveats to look out for?
You don't even need to have a "sprocket" engage the holes.
Use a friction roller and just make sure it always moves
*forward* constantly (trivial with the sorts of electronics
available nowadays) without slipping backwards, etc.
6638
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