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radii
16-May-2017, 11:15
Hello,

I wanted to share my latest build, which is a foldable 14x17 camera, with a 11x14 reducing back.
Along with it, I also made 4 filmholders per format, and a tripod.

All wood is walnut and the shiny bits are aluminium. The bellows are made out of the Thorlabs BK5 fabric with paper stiffeners, phosphor bronze for the leaf springs and light trap in the filmholders, and there is a carbon fiber rod in the bellows support.
Linear bearings and a lead screw move the front standard for fine focusing and semi-hidden linear bearings allow rough focusing with the rear standard.
Plenty of neodymium magnets hold various (re)movable parts in place.
The dark slides and septums are Garolite.

Total bellows draw is ~42" and it can focus a 355mm lens down to infinity without the bed appearing in the picture.

The camera weights about 19 lbs. and the tripod 10 lbs. Both seem sturdy. At this size, it's amazing to see the laws of mechanical leverage in action ;-)
The film holders weight 3 lbs 6 oz and 2 lbs 7 oz respectively.


It took me way too many hours to build it, many things didn't work out as planned (especially the folding mechanism and the sagging bellows) but all in all, I'm happy with it.

I still have to make bags for all of it and of course, take a picture with it.


Let me know what you think.


Thanks

JP

(pardon the too many pictures in too many replies)

https://s20.postimg.org/miijsn0jx/mutti_14x17_frm_-1.jpg (https://postimg.org/image/ozuazwkg9/)

https://s20.postimg.org/ibxpdb0y5/mutti_14x17_frm_-3.jpg (https://postimg.org/image/iop3jhj7t/)

https://s20.postimg.org/o1dxxm74d/mutti_14x17_frm_-4.jpg (https://postimg.org/image/7dmfv4ccp/)

https://s20.postimg.org/alqx85yml/mutti_14x17_frm_-5.jpg (https://postimg.org/image/kj1y18689/)

radii
16-May-2017, 11:16
https://s20.postimg.org/wz398poy5/mutti_14x17_frm_-6.jpg (https://postimg.org/image/juxow0ww9/)

https://s20.postimg.org/74tgixoy5/mutti_14x17_frm_-7.jpg (https://postimg.org/image/wnlsvy8i1/)

https://s20.postimg.org/plnv9r4wd/mutti_14x17_frm_-8.jpg (https://postimg.org/image/4c08ywoll/)

https://s20.postimg.org/cis8qheod/mutti_14x17_frm_-9.jpg (https://postimg.org/image/qcglfj79l/)

radii
16-May-2017, 11:17
https://s20.postimg.org/i88haskul/mutti_14x17_frm_-10.jpg (https://postimg.org/image/yj8l73xc9/)

https://s20.postimg.org/ghpg9b3bh/mutti_14x17_frm_-11.jpg (https://postimg.org/image/7molyseix/)

https://s20.postimg.org/dc4uj3kp9/mutti_14x17_frm_-12.jpg (https://postimg.org/image/5w5kxawzt/)

https://s20.postimg.org/uf7mem1e5/mutti_14x17_frm_-14.jpg (https://postimg.org/image/95k03rl3d/)

radii
16-May-2017, 11:18
https://s20.postimg.org/a944fq5ql/mutti_14x17_frm_-15.jpg (https://postimg.org/image/c0x3amp3d/)

https://s20.postimg.org/uunhldcp9/mutti_14x17_frm_-16.jpg (https://postimg.org/image/3wtkjms21/)

https://s20.postimg.org/9z17a4gi5/mutti_14x17_frm_-17.jpg (https://postimg.org/image/62nve4vih/)

https://s20.postimg.org/ukfz20y31/mutti_14x17_frm_-18.jpg (https://postimg.org/image/djx2tcl1l/)

radii
16-May-2017, 11:19
https://s20.postimg.org/vo03dziq5/mutti_14x17_frm_-19.jpg (https://postimg.org/image/tjfqcwh3d/)

https://s20.postimg.org/6j930kj9p/mutti_14x17_frm_-20.jpg (https://postimg.org/image/41xbtazd5/)

https://s20.postimg.org/9em67fn9p/mutti_14x17_frm_-21.jpg (https://postimg.org/image/bj6j8iow9/)

https://s20.postimg.org/56rdyolu5/mutti_14x17_frm_-22.jpg (https://postimg.org/image/9sni717d5/)

Erik Larsen
16-May-2017, 11:42
I'm very impressed, it looks fantastic!

bob carnie
16-May-2017, 11:51
Absolutely Stunning- I wish that I had your talent in making things , now you need to make pictures with the camera.

Steven Tribe
16-May-2017, 11:56
A little bit too much detailing for my taste, but the workmanship is impressive.

What would be more fun in this section is information/photos about the production of metal parts, woodwork and fasteners.
What kind of walnut?

DrTang
16-May-2017, 11:58
*jaw on ground*

jb7
16-May-2017, 12:01
Beautifully done...

radii
16-May-2017, 12:02
Absolutely Stunning- I wish that I had your talent in making things , now you need to make pictures with the camera.

From your lips to god's ears !!

radii
16-May-2017, 12:07
A little bit too much detailing for my taste, but the workmanship is impressive.

What would be more fun in this section is information/photos about the production of metal parts, woodwork and fasteners.
What kind of walnut?

I took no pictures during the making of it.

It was all drawn in 3D Rhino first and then milled on a 3 axis CNC router. Some table saw cutting, but not much ... and some laser rastering of letters.

The walnut (from the local lumberyard) is most probably plain old American.

David Lobato
16-May-2017, 12:49
You deserve all the glory with that beautiful camera.

Dave Wooten
16-May-2017, 14:08
Beautiful!

Christopher Barrett
16-May-2017, 14:13
Skills. Seriously.

John Layton
16-May-2017, 14:38
Stunning...Awsome...Inspired...I am basically speechless!

Michael Jones
16-May-2017, 14:47
Wow; amazing!

Jim Fitzgerald
16-May-2017, 15:36
Beautiful camera. Light weight, stunningly beautiful along with the tripod. What is not to like. Those 3D and CNC machines are awesome.

radii
16-May-2017, 15:50
Many thanks to all that like it and for the compliments !
And thanks to the ones that don't as well ;-)

radii
16-May-2017, 15:54
Beautiful camera. Light weight, stunningly beautiful along with the tripod. What is not to like. Those 3D and CNC machines are awesome.

When picking it up, 19 lbs does not seem light to me at all. I could have done with less aluminium maybe, but this was never going to be a featherweight-just-pick-me-up-and-go kinda camera anyways ...

dsphotog
16-May-2017, 16:12
A chick magnet camera !
Magnificent!

B.S.Kumar
16-May-2017, 16:42
This is magnificent!

Kumar

Fr. Mark
16-May-2017, 17:30
That's beautiful! Please tell us the source for the bellows material. I have a 100 y.o. 8x10 that needs a bellows.

radii
16-May-2017, 18:38
That's beautiful! Please tell us the source for the bellows material. I have a 100 y.o. 8x10 that needs a bellows.

It's the blackout material from Thorlabs

https://www.thorlabs.com/thorproduct.cfm?partnumber=BK5

There might be a better material for it out there, but I haven't been able to find it.
Bag bellows for organs are made with rubberized cloths for example.

The stiffeners in between the 2 layers were cut from 0.015" thick paper stock.

Peter De Smidt
16-May-2017, 18:40
All of the material for instrument repair that I've seen has been too thick. Great job on your build!

Jim Fitzgerald
16-May-2017, 22:14
When picking it up, 19 lbs does not seem light to me at all. I could have done with less aluminium maybe, but this was never going to be a featherweight-just-pick-me-up-and-go kinda camera anyways ...

I've built three 14x17's and the lightest is 26lbs. So 19lbs is awesome! Just right I feel. Holders are not eases bravo on them as well as that is the expensive part of 14x17.

Rick Rycroft
16-May-2017, 23:23
Fantastic work!

c.d.ewen
17-May-2017, 04:00
I wish....I wish....I wish....

Congrats!

Charley

David Karp
17-May-2017, 06:36
Beautiful!

Daniel Strasshofer
17-May-2017, 08:16
Amazing! Best appearance of all modern wooden cameras I`ve seen in the past years!

Barry Kirsten
17-May-2017, 14:08
Congratulations, radii. Your workmanship is superb; I'm in awe!

jp
17-May-2017, 17:24
Very beautiful!

Fr. Mark
17-May-2017, 17:32
Thanks for the bellows link. That's tremendous!
Why two layers? Also, what did you use for adhesives?

Barry Kirsten
17-May-2017, 23:49
You made a beautiful job of the bellows. May I ask, which/whose instructions did you follow? I built a 5x7 bellows recently that was supposed to come out square, but depending on how the fold sequence is started, either the large end or the small end comes out rectangular.

radii
18-May-2017, 06:18
Thanks for the bellows link. That's tremendous!
Why two layers? Also, what did you use for adhesives?

One layer only wouldn't be light proof enough, and the two layers allow good adhesion/sandwiching of the ribs.
I used 3m 465 transfer tape for adhesive. Super 77 spraymount works as well, but is trickier to apply evenly and leaves a rougher surfaces telegraphing through the fabric.

radii
18-May-2017, 06:31
You made a beautiful job of the bellows. May I ask, which/whose instructions did you follow? I built a 5x7 bellows recently that was supposed to come out square, but depending on how the fold sequence is started, either the large end or the small end comes out rectangular.

Thanks, but I have to disagree. They might fold up nicely and look decent, but the sagging at any extension makes me seriously doubt my approach.
The 5x7 and 8x10 bellows I've made before didn't have that problem, so it must be the weight and size that's the culprit.
The Thorlabs fabric, being only 0.005" thick, is probably just too flexible to provide enough stiffness for a bellow of that size. I have however not been able to source a material that is comparably flexible, light proof and on the thin side.

I can't remember the original link for the instructions that I used to calculate my bellows, but there's still some trial and error involved in it for me. I first plot out a paper template of the first row of ribs, knife it out, tape it together to form a very low pyramid and fold it up to see what I get. It's usually off from what I anticipated and then make the necessary adjustment before cutting the final pieces.
And yes, the front standard end of it comes out rectangular while the rear standard end is somewhat square.

David Lobato
18-May-2017, 06:32
Your skills as a photographer are apparent in your camera photos. The lighting is very well done as are fine details in and of the camera. Your lighting technique has perfect contrast between the metal part highlights and the dark areas. The wood textures look beautiful, as well as the closeup photos. The tripod is a work of art in itself. You are capable of producing great photos with this wondrous camera.

blindpig
18-May-2017, 06:38
Really beautiful job,well done.I appreciate the work you've done but mostly the design and the time spent on it are remarkable.

Kerik Kouklis
18-May-2017, 11:32
I had an Anthony and Scovill 14x17 that weighed 19 lb. I put many hundreds of sheets of film through that camera. But, it did not hold a candle to your beautiful design, both in terms of form and function. I like your design sense very much. Looking forward to seeing what you do with it.

ederphoto
18-May-2017, 19:27
Wow ! Congratulations ! You've just designed one of the most beautiful field cameras ever ! Now you can start mass production . I'd love to have one . I'm in love with this camera !

radii
19-May-2017, 06:05
Thank you everybody for the kind comments.

The glamour shots of the camera aren't misleading, some of the functionality however isn't where I'd like it to be.
Aluminum has the worst friction coefficient and has therefore turned the travel of the rear standard stabilizer-nut, into a not-so-smooth operation (even with the addition of Teflon washers) ...conversely, the movement of the front standard carriage is so smooth (the lead screw is virtually resistance free yet without slack) that, depending on the extension and pull of the bellows, it's hard to keep the carriage in place (can be corrected with proper placement of the bellow support)...AND of course the sagging bellow ...and ...

radii
19-May-2017, 06:07
... You are capable of producing great photos with this wondrous camera.

Thank you very much.

I hope that some of that turns out to be true.

Colin Graham
19-May-2017, 08:21
Impressive work for sure!
Aluminum is a great material in so many ways but it does sucks mightily for friction surfaces. I've never tried anodizing to see if it helps, but have had good luck with UHMW film- https://www.mcmaster.com/#uhmw-polyethylene/=17p0pfa. Not perfect, but it does help quite a bit and seems a bit slicker than the teflon materials I've tried. As for bellows, I'll gladly take some sagging if it means there'e flexibility to use a wide range of focal lengths.

Fred L
19-May-2017, 09:34
speechless....simply a beautiful build and can't wait to see some work from this camera.

and if you ever decide to build film holders...I could use an extra 7x17 or so ;)

radii
19-May-2017, 09:35
Impressive work for sure!
Aluminum is a great material in so many ways but it does sucks mightily for friction surfaces. I've never tried anodizing to see if it helps, but have had good luck with UHMW film- https://www.mcmaster.com/#uhmw-polyethylene/=17p0pfa. Not perfect, but it does help quite a bit and seems a bit slicker than the teflon materials I've tried. As for bellows, I'll gladly take some sagging if it means there'e flexibility to use a wide range of focal lengths.

Interesting. Thanks for the link.

Anodized pieces are much slicker (and would open up new design possibilities), but I haven't found a reasonably priced service that does small custom pieces (except paintball guns and yoyo amateurs) and the entry price to do it myself is just too damn high.

The other option would be to use Delrin in those friction places maybe. Once cut though, it looses it's factory shine and it's impossible to restore that.

Pali K
19-May-2017, 17:02
This is a gorgeous camera! Absolutely stunning workmanship.

Do you mind sharing the details for the ground glass?

Pali

denverjims
19-May-2017, 20:33
You're not planning to use it, are you? :)
Donating to MOMA would be more appropriate.
The first scratch would make me cry...

Beautiful!

radii
20-May-2017, 04:23
This is a gorgeous camera! Absolutely stunning workmanship.

Do you mind sharing the details for the ground glass?

Pali

Thank you. Glad you like it.

The ground glass is 1/8" acrylic, laser scored on one side and hand ground with 400 and 600 grit silicon carbide powder on the other.
Mix a bit of the powder with water, and with another thick piece of acrylic, grind away (for hours in my case). As the slurry dries up, rinse it off and mix a new batch.
It's still hit or miss for me though. No matter what, some circular scratches always remain.

radii
20-May-2017, 04:27
You're not planning to use it, are you? :)
Donating to MOMA would be more appropriate.
The first scratch would make me cry...

Beautiful!

Thank you. Very kind.

radii
20-May-2017, 04:34
speechless....simply a beautiful build and can't wait to see some work from this camera.

and if you ever decide to build film holders...I could use an extra 7x17 or so ;)

Thank you.

As others have pointed out, making film holders is a ridiculously involved process for such a seemingly simple object. The tight tolerances, space restrictions, weight, light proofing etc..
Unless I'd have enough holders to make, to justify bundling machining setups to make it more efficient, I won't make one the side, just for fun. Never say never though ...

Pere Casals
20-May-2017, 04:43
Awesome !!!

Congratulations, there is way more than labour time there... with this stunning realization, you not only show refined skills in 3D CAD, but also you know how to work with noble materials, and you also give a lesson on style... Functional, very, very practical, but beautiful, beautiful and beautiful.

I feel you are proud of this baby !"

radii
20-May-2017, 18:52
Awesome !!!

Congratulations, there is way more than labour time there... with this stunning realization, you not only show refined skills in 3D CAD, but also you know how to work with noble materials, and you also give a lesson on style... Functional, very, very practical, but beautiful, beautiful and beautiful.

I feel you are proud of this baby !"

Ha! Thank you. Very kind of you.

Noble ...I like that ...

Michael Roberts
20-May-2017, 20:21
Just about the most beautiful thing I've ever seen. Congrats!

baronvonaaron
21-May-2017, 08:53
oh my god

bob carnie
21-May-2017, 09:10
Ok here is the stupid question of the day..

These new router cutters that work in these amazing ways, would it not be a piece of cake for one of you technical geeks be able to make
custom made Washers at any size requested..

Bobby needs a 30 x 40 vertical washer....

interneg
21-May-2017, 13:11
Ok here is the stupid question of the day..

These new router cutters that work in these amazing ways, would it not be a piece of cake for one of you technical geeks be able to make
custom made Washers at any size requested..

Bobby needs a 30 x 40 vertical washer....


Kienzle in Germany make a 5 slot one - about 4K-5K EUR depending on spec however...

Been contemplating one, but am of same thoughts regarding whether it can be done cheaper.

jon.oman
21-May-2017, 13:16
Wonderful, just wonderful! I can't wait to see the first image...

bob carnie
21-May-2017, 13:29
Kienzle in Germany make a 5 slot one - about 4K-5K EUR depending on spec however...

Been contemplating one, but am of same thoughts regarding whether it can be done cheaper.

I think any plastic company have the abilitys, plastic welding is something I am not familiar with but I have gone as far as sourcing out the plexi.
I would use the same plexi GREY OPAQUE as I use for my big trays, and router out the end and bottom plates, I have not figured out how to bring water
into the system and out... It would have to be a floor standing model on wheels or base and one would need a floor drain.. I think 6 1 inch slots would allow enough space to
wash a days murals ... I was thinking with the proper routering and welding under 2 K Canadian which these days could be around 50cents on the dollar.

4 or 5K Euro is too much and it would have to cook me dinners at the end of the day or mix me a good cocktail before I would pay that much.

interneg
21-May-2017, 13:48
I think any plastic company have the abilitys, plastic welding is something I am not familiar with but I have gone as far as sourcing out the plexi.
I would use the same plexi GREY OPAQUE as I use for my big trays, and router out the end and bottom plates, I have not figured out how to bring water
into the system and out... It would have to be a floor standing model on wheels or base and one would need a floor drain.. I think 6 1 inch slots would allow enough space to
wash a days murals ... I was thinking with the proper routering and welding under 2 K Canadian which these days could be around 50cents on the dollar.

4 or 5K Euro is too much and it would have to cook me dinners at the end of the day or mix me a good cocktail before I would pay that much.

From what I've seen of it, it's much the same as a giant version of the Nova style of washer - water in at bottom, removable dividers textured on one side, the waste water waterfalls over an internal septum at the top to the drain tube.

radii
21-May-2017, 17:22
Just about the most beautiful thing I've ever seen. Congrats!

Thank you

radii
21-May-2017, 17:23
Wonderful, just wonderful! I can't wait to see the first image...

Thank you

And yes, me neither ;-)

Ron (Netherlands)
27-May-2017, 03:52
Indeed impressive, but would like to know the investment in the machines one need to make these...apart of course from the build experience

MAubrey
27-May-2017, 07:02
Indeed impressive, but would like to know the investment in the machines one need to make these...apart of course from the build experience

Seconded. I have access to the relevant machines at a local makerspace shop, but I've never gone near them for lack of experience.

Peter Collins
27-May-2017, 19:42
stunning! gorgeous! amazing fit and finish!!

Tav Walraven
27-May-2017, 19:59
When do they do into assembly line production? My Bitcoins are ready to be traded!

radii
28-May-2017, 04:38
Indeed impressive, but would like to know the investment in the machines one need to make these...apart of course from the build experience

What I have access to, which is a 4' X4' CNC router with 12" clearance (can cut almost anything except ferrous metals) and other standard shop tools like a table saw, band saw, hand power tools, hand tools etc, would probably cost ~$35'000.-. Plus of course shop space.
All of that makes it easier and more efficient to make things, but a good table saw, hand router, perseverance and elbow grease can achieve equal results. They're just tools.

Jim Graves
29-May-2017, 13:23
WOW!!! ... just WOW!!!

radii
27-Sep-2017, 07:25
Finally, the first two contact printed pictures !!

Still have ways to go with nailing down developing times and contrast grade filters, tray agitation technique etc., but it's quite a rush to see a 100% hand made picture coming out of the fixer bath.

I apologize for the awful cell phone pictures.

https://s20.postimg.org/7ia9f9gct/image.jpg (https://postimg.org/image/oit5nxte1/)

https://s20.postimg.org/s155kbua5/image.jpg (https://postimg.org/image/vxihgbf9l/)

Peter Collins
27-Sep-2017, 08:15
¡another jaw on ground!

Fr. Mark
27-Sep-2017, 18:07
Wow! Looks great!

fj55mike
6-Oct-2017, 15:07
Wow, super impressed! I really like the adjustable leg supports on the tripod. Loads of amazing details throughout.