[GreenKeys] GreenKeys Digest, Vol 85, Issue 12

John Nagle nagle at animats.com
Thu Feb 10 12:43:09 EST 2011


On 2/10/2011 9:01 AM, greenkeys-request at mailman.qth.net wrote:
> Message: 7
> Date: Thu, 10 Feb 2011 09:24:54 -0000
> From: "Mike Hatch"<mike at soemtron.org>
> Subject: Re: [GreenKeys] [personal] Re: Working on the 5/16" paper
> 	tape	problem for Model14 machines.
>
>> >  3.  5/16" is 7.94mm, so 8mm paper tape should work.  8mm paper tape is
>> >       used in the semiconductor industry for packaging low-value surface
>> >       mount parts.  It's called "unpunched carrier tape".  There are
>> >       many suppliers, but the stock tends to be quite thick.
>> >
>> >  I am wondering how thick is "quite thick."  ...
> The carrier tape for surface mount parts is VERY thick compared to paper
> tape.
> It is more like card, at least 1mm thick probably getting on for 1.5mm
> depending on the components in the reel.
> Mike Hatch

     The supplier can get down to 0.30mm, which would be considered
76 pound bond paper.  That's roughly equivalent to greeting card stock.
It would probably feed through the machine, although a spool with
a much bigger hub than normal would be needed.

     Marginal idea; I'll keep looking.

					John Nagle



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