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MMD > Archives > October 1996 > 1996.10.18 > 03Prev  Next


A Simplistic Roll Perforator Idea
By Karl Ellison

That does it ... after reading Spencer Chase's post on "slow-poke scanner/puncher", I need to put forth an idea I've been contemplating for a few months. I've been holding off asking you all about it because I think its sort of too simplistic to make good.

Spencer - I'’d love to collaborate with your project this winter, but you need a local software whiz as your complement, and I'm neither local or a whiz in C.

I'd would like to build a Personal Perforator - a very inexpensive and simple punch machine that would take a MIDI or whatever file and make an any (not just 88) note roll. It would have no mechanical limitations as to hole spacing or any other physical attribute because these parameters would be software driven. The unit would be the size of a small dot matrix printer. Speaking of which ...

What's so simple? You know how a big IBM or DataProducts computer line printer works .. it punches each line in parallel .. much like big perforators do with more than 88 redundant circuits. Consider the dot-matrix printer .. that rastorizes the image and prints it perpendicular to the page in a serial fashion, building the image with each pass. Why can't a perforator work this way? Visualize a solenoid-driven punch replacing the traditional print head in a dot-matrix printer, add some software, and you've got the idea. In fact, I'd probably take an old Epson printer and use the data interface and stepper motor setup, etc. to implement a prototype.

As for the software, like Spencer, I too haven'’t used the modern languages since college 12 years ago, so I’'ll spend some time gearing up on that stuff. It’s the real limitations one encounters when putting ideas into physical practice that'’ll give me the problems. But then again, what are long, cold Massachusetts winters made for?

I like the thought because it’s different (I think), and it should be mechanically simple only at the expense of more complex software - as it should be for maintenance/modification/parameter-driven purposes.

Is this a unique idea? Besides the speed limitation, any thoughts?

- K a r l B. E l l i s o n
Ashland, Massachusetts U.S.A.
KBEllison@aol.com
http://members.aol.com/kbellison/kbe.html


(Message sent Fri 18 Oct 1996, 23:09:19 GMT, from time zone GMT-0400.)

Key Words in Subject:  Idea, Perforator, Roll, Simplistic

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