Jon and all,
I'm now using Kreene under the glass of the vacuum bed, and I've
noticed my prints seem to have a little bit of lower contrast because
of it. I haven't tested this out, and likely won't have time to for
quite a while. It's not at all a big difference... just thought I'd
mention it though. Of course a good PDN curve takes care of it. In
fact, I burned dinner the other night, and just whipped up a PDN curve
and applied it to my family, and they loved dinner... thought it was
perfect all crunchy-like.
On 5/5/07, Jon Lybrook <firstname.lastname@example.org> wrote:
Glad to hear the mylar solved the contact problems for you.
I've actually removed the glass entirely from my contact frame and just
have Kreene stretched across it. I thought of trying taping it across
the glass, but Harold at Box Car seemed to feel the added effect of the
glass + kreene wouldn't be as crisp...or something. In any case, I'm
happy with the way it's been working, though removing the glass was a
little intimidating at the time.
Also, I was wondering what image/screen/wattage you're using for
exposures just out of curiosity...
Keith Taylor wrote:
> I pulled the frame apart and replaced some old foam rubber that sits
> under the ribbed bed of the frame with some nicer neoprene. The
> pressure remained the same throughout - at least on the dial, but who
> knows? While I wait for my roll of Kreene to arrive I tried using a
> thin (1mil) sheet of Mylar as you would with Kreene. No more contact
> problems - at least for now. I'll run some more tests tomorrow just to
> make sure and keep you updated.
> On May 2, 2007, at 8:37 PM, SusanV wrote:
>> Have you been getting the same measure of vacuum? Let us know what
>> you find out. Hope it's nothing major.
>> As for trying out the Kreene.. I taped a piece of it to the bottom of
>> my glass. The glass on my NuArc is "frameless" and fits into a hinge
>> at the back of the bed. Using the Kreene under the glass this way
>> just relegates it to an "anti-newton" film which seems to be working
>> for me. The glass actually still holds the vacuum.
gravure blog at www.susanvossgravures.blogspot.com