RE: [PPLetterpress] C&P Pilot with Base
I for one appreciated having your comments sent to the list as I too have
been plagued by similar inking problems (for other reasons) on my Columbian
The height of the printing surface over the shoulder of a photopolymer plate
is much less than with type so that roller bulge can ink the shoulder very
easily. The real answer is probably a harder roller but few of us are going
to have a selection to choose from. The alternative is to raise the roller
above its normal level for type. NA Graphics sells a special tape to apply
to roller tracks for this purpose. I believe it is intended to be permanent
so not a good answer if you plan to revert to printing from type. I have
raised rollers by taping strips of cardboard to the tracks with black
electrical tape. Masking tape is pretty thin and has an irregular surface
so I would not think it would be as good.
You might also want to consider some sort of roller bearers locked into your
chase. 18 point brass rule is usually recommended but wood rule or
miscellaneous wood border or even type would work. I have resorted to this
because my tracks are badly worn. The bearers also may need to be raised.
I would suggest using a cardstock underlay.
I am in process of working out a similar roller bulge problem working with
photopolymer plates on my handpress and will report back when I have reached
a satisfactory solution. My initial finding has been that type-high roller
bearers result in the roller bulge inking the shoulder of the plates.
From: typetom@... [mailto:typetom@...]
Sent: Sunday, March 03, 2002 2:18 PM
Subject: Re: [PPLetterpress] C&P Pilot with Base
I tried to reply directly since I figured the answers I have are more for
direct questions than for the list, but it came back undeliverable. So I
guess I'll send it to the whole list:
Hi lalaura2@... (mijayoga1),
Sounds to me like you may need a different base? I haven't tried the Boxcar
base/system but I think they are for a shallower cut of polymer than I have
been using. I use the steel backed polymer plate material from Gene
there are several different thicknesses of plates available....
But that doesn't answer your question about the Pilot. The roller contact
height is not adjustable on the press except by adding masking tape to the
tracks to raise them. On larger C&P presses you can get adjustable trucks
(the little wheels the rollers ride on). Sometimes called MERTs for Morgan
Expansion Roller Trucks, these are made of a rubber wheel, with a nut that
can be tightened to squeeze the rubber into a different diameter. I don't
think they ever made those for the Pilot, though. Fritz Klinke at NA
(nagraph@... or 970-387-0212) sells the MERTs and replaceable
parts, so he would know.
Only other possibility I can think is maybe you have the wrong size metal
trucks on the press, maybe from a Kelsey press or some other small press. Do
the rollers hit correctly when you use type? If so (within a bit of masking
tape adjustment), it ought to work for polymers with a base. You can check
the height of the polymer plus base against metal type by turning them all
face down so the bottoms will give you close edges to compare by feel.
all be type-high.
Good luck figuring it out! Tom
Now It's Up To You Publications
157 S. Logan, Denver CO 80209
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- The tape we sell for raising the rail height is removable, but it is a hard
plastic with a very effective adhesive so that the tape will not deform as
will masking tape or electrician's tape, both of which are stop-gap measures
at best. The bed rails have to be clean and free of oil and grease.
I personally think, that besides having the bed rails in the correct height
ratio to the rollers to be at type high, assuming the material being printed
is also type high, that the condition of the inking rollers is most
critical. We have rollers from platens, cylinders, Vandercooks coming in our
shop on a daily basis. It appears that most printers run their rollers into
the ground before they accept the fact that the roller is shot and has to be
replaced. We furnish new cores on most of the platen press rollers except
Kluge and Heidelberg, as new cores are straight and true, and used ones tend
to be warped. This is picked up on the finishing equipment in a roller shop
where the final grind is done on what is essentially a lathe, and rollers to
be true have to have concentric cores. Rollers swell, shrink, and do all
sorts of things over their life span, all of which is affected by the type
of solvent used, the size and type of material being inked, temperature in
the shop, press speed, etc.
Fritz Klinke, NA Graphics
1314 Greene Street, P.O. Box 467
Silverton, Colorado 81433 USA
970-387-0212, fax 970-387-0127
----- Original Message -----
From: "David Goodrich" <davidgoodrich@...>
Sent: Sunday, March 03, 2002 2:16 PM
Subject: RE: [PPLetterpress] C&P Pilot with Base
> I for one appreciated having your comments sent to the list as I too have
> been plagued by similar inking problems (for other reasons) on my
> No. 2.
> The height of the printing surface over the shoulder of a photopolymer
> is much less than with type so that roller bulge can ink the shoulder very
> easily. The real answer is probably a harder roller but few of us are
> to have a selection to choose from. The alternative is to raise the
> above its normal level for type. NA Graphics sells a special tape to
> to roller tracks for this purpose. I believe it is intended to be
> so not a good answer if you plan to revert to printing from type. I have
> raised rollers by taping strips of cardboard to the tracks with black
> electrical tape. Masking tape is pretty thin and has an irregular surface
> so I would not think it would be as good.
- I have two heights of Lexan base; .850" for my plastic based .065"
mylar backed plates, and .750" for my metal backed .165" plates. An
allowance of .003" is made for the mounting tape.
Furniture is usually .625 or 16 MM high; slugs and leads being two
heights, low and ludlow, the measurements of which excape me at the
--- mijayoga1 <lalaura2@...> wrote:
> Hi, I have a problem. I bought a Boxcar base from Boxcar Press but=====
> rollers on my C&P pilot are hitting the entire base not just the
> on the plate I put on it. Are rollers adjustable on a C&P pilot?
> What is the exact height measurement of furniture, leading, etc? It
> seems that the base is just a weeensy bit higher than the base of my
> type which I used to measure it against....
Pagan, Pagan, what are you finding?
Yours is the road that winds lonely and far,
Strange are the shadows that round you come creeping,
Still through the clouds is the glint of a star!
From the book, Charge of the Goddess
BY: Doreen Valiente
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