23 Nov
1997
23 Nov
'97
5:21 p.m.
On Sun, 23 Nov 1997, Allison J Parent wrote:
<instead of the vinyl, would a small section of heat-shrink tubing work? Ni
<it a little longer than the thickness of said ferrule, then hit it with
I presume over the gummy roller. The problem is the ferrule for the tu58
is 0.435 od, the roller is 0.625 od. The gummey material does not hold
shape in the advanced cases of rot. The tygon tubing has a 0.385 ID and
when stretched over the ferrule has a od of 0.610 after grinding. This is
adaquate as the tape speed is servo controlled via read back data.
Rather similar to the scheme that I used to read an IPL tape on a
Televideo TS-816. In that case it involved using a 1/4" ID rubber
grommet which was cemented to the capstan shaft after 'grinding' it down
to approximately the correct OD. Worked like a champ! Fact is, I still
have a spare that I never needed.
- don
Having worked with machines used to produce
pharmaceuticals I have a
better than average appreciation for various elastic materials. There
are many of them to choose from and the urethanes or neopyene are a good
choices but Tygon(aka Vinyl) thick wall tubing is a easy one to obtain and
use and proven satisfactory. The later ease of availability and use are
key in the selection.
Allison
Allison
donm(a)cts.com
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Don Maslin - Keeper of the Dina-SIG CP/M System Disk Archives
Chairman, Dina-SIG of the San Diego Computer Society
Clinging tenaciously to the trailing edge of technology.
Sysop - Elephant's Graveyard (CP/M) - 619-454-8412
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