8 Mar
2002
8 Mar
'02
7:40 p.m.
Date: Fri, 8 Mar 2002 19:36:13 -0600 (CST)
From: Bill Richman <bill_r(a)inebraska.com>
To: classiccmp(a)classiccmp.org
Subject: Blank Paper Tape Question
Does regular paper tape normally come with the sprocket holes pre-punched,
or does the device that punches the data holes also punch the sprocket
holes? I recently bought some "paper tape" from eBay, and it looks like
the right stuff except it's totally without holes. I don't think I've
ever seen "virgin" tape before, but I had the idea that the sprocket holes
down the middle came with the tape. I'm kicking around trying to build my
own tape punch, since I have been unsuccessful at scrounging or buying one
so far. I picked up some stainless steel flat and some rod of the
appropriate diameter for the holes today, along with some solenoids for
actuating said rods. I'm thinking of machining the stainless to make my
own punch, but the lack of sprocket holes on the new tape has me confused.
Do I need to add another solenoid and pin to punch a smaller hole for the
sprocket, or did I just buy some odd-ball tape?
That's the way it is. The sprocket hole gets punched along with all
the data holes. Even the TTY33-ASR did it that way.
Otherwise you would have a tough alignment problem between the data and
the "timing track".
carl
--
carl lowenstein marine physical lab u.c. san diego
clowenstein(a)ucsd.edu