3d printing an 8x10 negative carrier for Epson scanners?

[axs810]

Would it be possible to 3d print an 8x10 negative carrier for an Epson scanner? This ideas been rolling around in my head for awhile and I've been thinking of asking my dad to make something in a 3d program as a prototype since he uses those programs for work. Just curious for those who understand the limits of 3d printing would it be possible? Or would the size be too big for the 3d printers to handle? I figure it wouldn't be difficult to prototype an 8x10 holder based off the 8x10 border you get with the scanners and mix it with the design/height of the 4x5 carriers.

Thoughts? Opinions?

[Jim C.]

If you had access to a 3D printer that has a large enough work platform and most important a fine enough resolution
then I don't see why it couldn't be 3D printed. IMHO something like a neg carrier would be better suited CNC'd.

[trondareo]

The good thing about 3d is that you can print snap together parts, if the holder is too big to be printed all at once

[adelorenzo]

I've been thinking about making negative carriers and various other projects for my darkroom. I agree with Jim, I'm planning to use CNC machines and/or laser cutter.

[Regular Rod]

Would it be possible to 3d print an 8x10 negative carrier for an Epson scanner? This ideas been rolling around in my head for awhile and I've been thinking of asking my dad to make something in a 3d program as a prototype since he uses those programs for work. Just curious for those who understand the limits of 3d printing would it be possible? Or would the size be too big for the 3d printers to handle? I figure it wouldn't be difficult to prototype an 8x10 holder based off the 8x10 border you get with the scanners and mix it with the design/height of the 4x5 carriers.

Thoughts? Opinions?

This would be a waste of time, effort and money as it cannot work, certainly not with a V700 or V750. 8x10 can only be scanned with the lens that scans what is actually laid on the glass inside the film area guide. It is too big for the lens that scans what is in a lens holder and raised from the glass. The best way to get reasonable scans for 8x10 (and Whole Plate) is to lay the film emulsion side down on the glass inside the film area guide and lay a sheet of Anti-Newton Ring glass on top of the negative (also inside the film area guide) to ensure a flat contact. This avoids Newton Rings and avoids any distortion from any curvature of the negative.

RR

[Tin Can]

Unless you stretch an 8x10 it will never hover flat over the glass.

I have good luck just doing it the Epson way and as mentioned below using AN glass.

Wet mount is well liked and will do wonders with scratches and spots, I have heard repeatedly here. I have no reason to doubt wet mount. I just don't need it and never tried it.

[djdister]

So even though it may not be practical for 8x10, I wouldn't mind a neg carrier for 5x7 on my 750. I could retire my "matboard neg carrier" in that case...

[SMBooth]

5*7 and 8*10 go direct on the glass with a v700 you don't need a negative carrier. Anyway it would be easier to make you using sheet plastic and a router.

[axs810]

I guess I really didn't think this one thru...I forgot the negative had to be laying directly on the ground glass. I don't know how I forgot that... /)_-

[djdister]

Well as we know individual results may vary with a flatbed scanner, and I get very sharp results with my 5x7 negs emulsion up, in a frame made out of two pieces of mat board.

[Drew Bedo]

Isn't the problem with an 8x10 neg carrier for a scanner that the film sags? If the film is supported with glass or plexiglass there are problems with Newton rings and glare etc . . . am I wrong?

[Regular Rod]

Isn't the problem with an 8x10 neg carrier for a scanner that the film sags? If the film is supported with glass or plexiglass there are problems with Newton rings and glare etc . . . am I wrong?

If the film is laid emulsion side down and a sheet of Anti-Newton Ring Glass is laid on top the problems seem to go away. Of course afterwards the image has to be flipped horizontally to make it the right way round.

RR

[mdarnton]

Cruising the web this afternoon I found this interesting post:
http://bendolman-photography-journal.blogspot.co.uk/2014/09/alternative-way-to-scan-8x10-film-on.html#more

I got there via this blog, which was pretty interesting too, for LFDIY:
http://cdtp-photography.blogspot.com/

[Tin Can]

Cruising the web this afternoon I found this interesting post:
http://bendolman-photography-journal.blogspot.co.uk/2014/09/alternative-way-to-scan-8x10-film-on.html#more

I got there via this blog, which was pretty interesting too, for LFDIY:
http://cdtp-photography.blogspot.com/

Both great links. The second I have been following for a while. They have made some progress since I last checked in.

The first link is also good and I have my variation which some have called 'bad idea'. Instead of hovering an 8x10 1.5mm over the V700 glass plate, o found by empirical testing that my V700 gave best results with my very old AN glass laying on the platen and my negative laying on that, dead flat, emulsion down. Taped only if necessary. With the 8X10 film guide in place. So my film is about 1.5mm above the platen and my scans looked best done this way. To me, which is all I care about...Logic be damned. I did try it many other different ways. Some say these V700's are all different from factory spec 'stack up' issues that make them inconsistent unit to unit. So each owner/user must find their best method.

[djdister]

Cruising the web this afternoon I found this interesting post:
http://bendolman-photography-journal.blogspot.co.uk/2014/09/alternative-way-to-scan-8x10-film-on.html#more

I got there via this blog, which was pretty interesting too, for LFDIY:
http://cdtp-photography.blogspot.com/

The suggestion of a 1.5mm film frame used in place of the film area guide is similar to the good results I get with my homemade 5x7 matboard negative carrier, which fits just inside of the film area guide thingie.

[Lachlan 717]

The other potential option for this is to create an 8x10 holder that allows partial scanning of the image using the high-res lens and then stitch the image. I can't recall the exact scanning area of the high-res lens; however, I think that it's around 5x7". If you had an 8x10 holder that has a 5x4 opening, then the remaining 5x4 area would be supported to minimise slumping.

I looked at this idea for 7x17" scanning in this thread. (http://www.largeformatphotography.info/forum/showthread.php?76877-7x17-film-holder-on-Epson-V700-not-working)

[Regular Rod]

The other potential option for this is to create an 8x10 holder that allows partial scanning of the image using the high-res lens and then stitch the image. I can't recall the exact scanning area of the high-res lens; however, I think that it's around 5x7". If you had an 8x10 holder that has a 5x4 opening, then the remaining 5x4 area would be supported to minimise slumping.

I looked at this idea for 7x17" scanning in this thread. (http://www.largeformatphotography.info/forum/showthread.php?76877-7x17-film-holder-on-Epson-V700-not-working)
Surely you would need to scan the 8x10 four times if working on 4x5 portions?

RR

[axs810]

Cruising the web this afternoon I found this interesting post:
http://bendolman-photography-journal.blogspot.co.uk/2014/09/alternative-way-to-scan-8x10-film-on.html#more

I got there via this blog, which was pretty interesting too, for LFDIY:
http://cdtp-photography.blogspot.com/




Very cool links! Thanks for posting