ebay - cardamatic

[Tom Jennings]

On Tue, 15 Feb 2005, Vintage Computer Festival wrote:

>> The nice thing about cards, and their use today (as we play with old
>> machines) is that unlike paper tape, you can have a print shop make up
>> cards fairly easily, even with the index chop. The only thing that would
>> be "faked" would be the nice rounded corners. I think most card handling
>> machines would not care too much if the corners were chamfered or
>> filleted (sp?).
>
> I imagine the corners were rounded to avoid jamming as they were fed into
> the reader mechanism?

Oh I would bet card tolerances are extremely tight for autofeed
cards. Likely a local print shop would have trouble making good
consistent cards from that really unique card stock IBM used.
It's not very ordinary, and a stack of fresh cards is like a solid
block, absolutely smooth!