Dan Koons (dkoons@pld.com)
Fri, 22 Oct 1999 07:39:05 -0500
For someone who hasnt tried the ABS tubes you might try a method which
involves
developing your film to completion without worry about removing the anti
halation layer until after fixation. I started using the used PMK developer
per Gordon Hutchings instructions as a staining bath. the components in the
developer will remove it. You do not have to use pyro, d76 or xtol will
work. The catch is placing the film in a tray with the developer before the
final wash. This might avoid the steps is adding groves to the pipe. just a
thought:)dan
At 06:24 PM 10/21/1999 -0400, you wrote:
>
>On Thu, 21 Oct 1999, Wayde Allen wrote:
>> ... Adding grooves would likely make for some
>> sharper ridges to scrape against.
>
>I don't know about the ABS plastic, but if it's anything like plexi and
>other plastics I've used, adding "grooves (tho not groves) is a piece of
>cake. Get some round, solid, lucite rods, about 50 cents each (I have 5 of
>them sitting in the unused tube with the bat-hat) and lay a line of
>methylene chloride, solvent adhesive for acrylics, along them out of a
>syringe (available at Industrial Plastics on Canal St as are the tubes and
>the rods).
>
>Then INSTANTLY stick rods into the tube & press against the wall. Or
>better yet, hold rod in position inside tube & drop a few drops along the
>join line at one end, then reverse tube & drop a few drops at the other
>end. The 2 pieces will meld. Stronger than mere mortal bonds. Which
>configuration would ward off turbulence and whether, I planned to, but did
>not discover. My thought was it would be OK.
>
>Judy
>
>>
>> Another thing I wonder about adding bumps, grooves, or whatever to the
>> tube, is whether the added work is a help or a hindrance. For instance,
>> would it be possible for the solutions to cleanly remove the antihalation
>> coating from the back of the film everywhere but where the bumps or groove
>> ridges touch the film? Wouldn't this make things worse by transfering a
>> pattern to the film?
>>
>> - Wayde
>> (wallen@boulder.nist.gov)
>>
>>
>
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