On Tue, Oct 16, 2018 at 4:29 PM Guy Dunphy via cctalk
wrote:
>
> Update:
> I've received good clear photos of the roller pairs, from which I can work
> out a sufficiently accurate
> diameter for the pinch roller. Thanks David and Ed.
>
> My guess of 27.5 WAS quite a bit off. Preliminary working f
On 12/10/18 7:00 AM, Ethan Dicks via cctalk wrote:
> I'd rather find a
> solution in the $50 range.
The CHM 1401 team replaced the rollers on their M1000
and I thought they got them from some source in LA
I asked someone on the team about it, and never got
a reply.
On Wed, Oct 17, 2018 at 8:40 PM Guy Dunphy via cctalk
wrote:
> Derived from those the correct pinch roller diameter is 27.20 mm.
> Notes here: http://everist.org/NobLog/20180922_data_in_holes.htm#rub
>
> It seems there's a few people who need new M200 rollers.
> Once/if I perfect a successful meth
A quick update.
Thanks to those who sent pics of intact rollers.
Derived from those the correct pinch roller diameter is 27.20 mm.
Notes here: http://everist.org/NobLog/20180922_data_in_holes.htm#rub
It seems there's a few people who need new M200 rollers.
Once/if I perfect a successful method of
At 07:21 PM 16/10/2018 -0400, you wrote:
>> From: Guy Dunphy
>
>> The mechanics has no adjustment or spring tension on the pinch roller
>> positions. ... all the spring is in the rubber of the rollers.
>> But how much squish?
>> ...
>> I'm hoping someone might have some know
> From: Guy Dunphy
> The mechanics has no adjustment or spring tension on the pinch roller
> positions. ... all the spring is in the rubber of the rollers.
> But how much squish?
> ...
> I'm hoping someone might have some knowledge of how much punch card
> reader pinch
Update:
I've received good clear photos of the roller pairs, from which I can work out
a sufficiently accurate
diameter for the pinch roller. Thanks David and Ed.
My guess of 27.5 WAS quite a bit off. Preliminary working from the photo gives
a roller Dia of 27.2 mm,
ie only just touching. But t
Den tis 16 okt. 2018 kl 11:52 skrev Guy Dunphy via cctalk <
cctalk@classiccmp.org>:
> Previously: Manual for Documation TM200 punched card reader
>
> Restoration of the mechanics of my TM200 punch card reader progresses.
> There's a writeup here:
> http://everist.org/NobLog/20180922_data_in_holes.
Guy said
> Restoration of the mechanics of my TM200 punch card reader progresses.
> There's a writeup here:
> http://everist.org/NobLog/20180922_data_in_holes.htm#tm200
Very interesting page, thanks
> Obviously too much 'squish' is undesirable since the roller would get
> permanently deformed wh
Previously: Manual for Documation TM200 punched card reader
Restoration of the mechanics of my TM200 punch card reader progresses.
There's a writeup here:
http://everist.org/NobLog/20180922_data_in_holes.htm#tm200
Currently I'm machining a mold to cast new pinch rollers - and there's the rub
(o
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