Digital BW, The Print

Carl:
Thanks for the chart. As soon as I locate a catalog for screen door
springs we can perhaps use it to get some equivalency chart between the
mayer rods and the springs.
 
Stan Shire
Associate Professor/Department Chair
Photographic Imaging
Community College of Philadelphia
Adobe Photoshop 6 A.C.E.
Author: Hands On Photoshop 7: Tutorial Workshops

215 751-8320
sshire@...
-----Original Message-----
From: Carl Schofield [mailto:scho@...] 
Sent: Sunday, December 08, 2002 9:18 AM
To: DigitalBlackandWhiteThePrint@yahoogroups.com
Subject: Re: [Digital BW] Mayer Rod Substitute...the saga and workflow
 
I think most screen door springs are made of 16 gauge wire (0.05 inch 
diameter) which would equate to a #50 mayer rod.
http://www.gardco.com/rodschart.html

On Sunday, December 8, 2002, at 12:17  AM, Paul Roark wrote:

> Stan,
>
> You wrote:
>
>> ... screen door parts ... looks like a Mayer Rod ..
>> the spring. (#4 D&G Spring, Zinc, about 15.25" in length) $2.42.
>
> I like it.  Now we'll have to see if they have different sizes of 
> springs.
>
>> .0488. This is larger than Paul's #14 Mayer (I think
>> .035)
>
> I think the #15 that I started with has .015" wire on it.  I thought 
> that is
> where they got those numbers from.
>
> I find myself using the #30 most now, and I think EAM absorbs so much 
> it
> could go to a #45 -- so we may be close here.
>
>> A 1/4" dowel fits nicely inside the spring ...
>
> Does it roll when you drag it across the surface?  I was told not to 
> roll
> the bar, but I'm not sure what effect that would have (aside from 
> leaving a
> lot more of the coating on the rod/spring.
>
> Keep experimenting.
>
> I think the toughest part may be scaling the process up to large 
> prints.
> I'm not getting the evenness I'd like to on my 16x20s, and Mark Tucker

> has
> resorted to spraying for larger prints -- which is more work.
>
> I'm not sure the hard glass surface is the best.  As the print and rod
> length get larger, I think maintaining a precise flatness becomes much

> more
> difficult.  I have found that a couple pieces of paper under an 8x10 
> helps.
> I think more of a cushion under a larger print may be needed.  In the 
> real
> world use of these rods, a flexible web is dragged across the rod.  
> This is
> flexible enough that the surface being coated conforms to the rod.  I 
> notice
> that Diversified Enterprises uses 1/2 inch glass on its platform, and 
> they
> have a cushion that is also used.
>
> So, I think we may need to experiment with different surfaces.
>
> For cleanup, I also think coated butcher paper makes a lot of sense.
>
> So, my next experiments may include a piece of cloth taped to the 
> glass,
> then some butcher paper over that. I've tried some felt, and that was 
> too
> thick.  The resulting coating had lines in it.
>
> So, just keep experimenting.  The results look good enough to warrant 
> the
> effort.
>
> Paul
> http://www.PaulRoark.com
>
>
>
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other resources as they are often being updated. The page is at:

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If you wish to receive no emails or just a daily digest, or you wish to
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same page.

Please follow these basic guidelines:
- Include your full name with your message.
- Include the address of your website, if you have one.
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keep them short.
- As the topic of a thread changes remember to change the subject
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"flames."
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- Before posting a question, search the message archives and the various
resources on the homepage. 




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