At 10:04 AM 02/25/2000 -0700, you wrote:
From: "D.F.S." <dfs@...>
From: wanliker@...
I just looked in the issue #101 of McMaster Carr, they have coated
aircraft
cable as follows:
Galvanized.
7x7 strand 1/16 coated nylon or clear vinyl, breaking strength 270 pounds.
7x7 strand 3/32 coated nylon or clear vinyl, breaking strength 480 pounds.
Stainless steel, same coatings, same strength, about 25% higher.
Both are indicated as available in cut lengths, 50 foot rolls, or 250 foot
spools.
This stuff sounds a bit stiff to me.
Doesn't it need to make several wraps around a 5mm Shaft?
I tried the several turns around the shaft, but found that I had to much of
an alignment problem to be satisfactory. Then I did it with just the 180
degree contact and have found it to be satisfactory. Even when the coolant
gets into the block; there seems to be no slippage. By using the ball
bearing setup, I can get more tension on the cable and minimize the
slippage problem that the "plain" bearing encoders offered by
at a lot higher price.
Tuning cord, yes that crossed my mind; but as stated previously, had the
cable and it works so why change? As far as the fishing line, would have
gone that route if I did not have the cable.
Art
This may be dated, but is "Tuning Cord" or similar string to
be had anymore.
(This stuff was the line used to tune old variable Cap radios
with the moving pointer and rotating knobs)
I would think the idea about the coated wire fishing line would be
the most readily avalible to most people, and probably relatively
cheap.
Marc
A. G. Eckstein
axtein@...
