pin register carrier

Wayne

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Joined
Jul 8, 2005
Messages
3,585
Location
USA
Format
Large Format
I've been threatening to post pictures of my homemade pin register carrier, what with all this talk of Ilfochrome masking I'm going to make good on it now. I built this from instructions by Dennis McNutt that used to be on the web but have now been wiped clean. It was also published in a magazine, search the archives here if you are interested as I've posted the details previously. I dont have the instruction, but I do have the results, Mine was rather quickly and shabbily constructed, I'm sure 99% of you could do better. I only used it several times for Ilfochrome masking, but it worked fine. I've searched my porous memory for the reasons for the pins on the negative stage too, and I'm sure there is an excellent reason but I dont remember it. Kick me a couple times and I'm sure it'll come back.

Anyway here is it. Its simply 2 pieces of glass, masked off for the film size (4x5 in my case). I used what I had laying around-construction paper and black tape- which as you can see is peeling off (its been sitting in a box in the attic for 7 years). The photo shows, clockwise from lower left the upper glass of the carrier, a (not very good) mask of 5x7 film showing the punch holes, a transparency with a strip of punched film taped to the edge, the tophat pins (even the size) from American Circuit Technology, PA, and the lower half of the carrier with pins shoved through another strip of film and attached to the glass by double sided tape. How this works should be fairly obvious but if you have any questions I'll prod my memory.

The other pic shows a similar arrangement of pins on the negative stage, thats the part I dont remember the why of but I'm sure it'll be obvious to someone else. Like I said I only used it a few times. It works and costs a few dollars for glass, pins, and a two hole punch. Or you can spend a few hundred and buy one from Radeka. .



 

Kirk Keyes

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Joined
Jun 17, 2004
Messages
3,234
Location
Portland, OR
Format
4x5 Format
That's pretty cool. I know someone that made one of these also, and it works really well. I've got a Condit set in a box awaiting installation into my Saunders 4500.
 

Erik L

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Joined
May 9, 2007
Messages
830
Location
Grand Junction CO
Format
8x10 Format
I believe the pins on the negative stage are so you can make and exposure and then put in or take out a mask and make another exposure and keep everything in register. Nifty little setup you have there!
Erik
 

John Meyer

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Joined
Apr 21, 2005
Messages
47
Format
Med. Format Pan
Wayne
thanks for posting the examples of your register system. i finally got a couple 4x5 neg carriers off the bay and am working with a machinist for welding the pins. dont know how well it will work out as the pin and carrier are dissimilar metals..
john
 
OP
OP

Wayne

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Joined
Jul 8, 2005
Messages
3,585
Location
USA
Format
Large Format
Why weld? Seems an unnecessary hassle.
 

John Meyer

Member
Joined
Apr 21, 2005
Messages
47
Format
Med. Format Pan
wayne
thats what the machinist said ,he may drill for the pins and mushroom the bottom like a rivit,
whatever works.
john
 
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