Why wait! Hassey Instax Back: Help Me

B-9

B-9

Devin Bro
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I have been waiting for a hasselblad instax back!

The few kickstarters have folded and failed with high $$$$$ expectations.

I would have thought an open source design might come to light... nothing yet... Not even a package of .stl files for purchase or trade. Nothing to build or modify... why!?

We have a slew of cheap instax mini cameras to hack and chew through...

Anyone want to help tackle this problem?

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I have a 3D printer at home (planning to buy another maybe even two by the end of the month) that I use for quick models and soon local consignment.

So if anyone out there is a master at blender, scad, autodesk, or any other rendering software lets get something started!

I am horrible with the programs but am learning!
 
Count me in!

I started thinking about this a soon as I got my instax square printer.

The first thing to understand is how the film is exposed (is there a protective cover in front of the first frame?) and how the film slides out while making sure light is not entering and contaminating the next frame.

I have few exposures left in the printer but once done I can take some detailed pictures.

I have a printer as well. I use blender for other projects but for printing, sketchup is a simpler solution and much easier to learn.
 
As a suggested starting point check out:

https://www.thingiverse.com/thing:433249

One of the pieces in that collection is an adapter for the Lomography Diana F+ instax back. That adapter basically gives you a flat rectangle which you could add onto to make it a back for another camera. I have the instax back and at some point was thinking about using the adapter to put it onto a Medalist accessory back. Just haven't got around to it yet and I need to learn the design tools more.

Shawn
 
B-9, sounds like an interesting problem. What does your ideal situation look like? Would you hack an Instax camera and print some sort of adapter? Or would you be looking to make something that just takes the film (much harder but also cleaner)?
The back on a Hassy is pretty straight forward as far as exposure goes, but the trick with hacking an Instax would be getting the film close enough, there are only a few mm of space there. Advancing to the next frame would be a seperate action, else it would get very complicated.
It would be really cool if you could make something that replaces the insert on a standard A24 back, or even hacks the Polaroid back - then the attachment to the body is already clean.
I have experience with 3D print design but have never used an Instax or a Polaroid back.
 
I was thinking I could start a with a Hasselblad 100 Polaroid back.

It used glass to transmit the film plane back a tiny smudge.

Then printing something to fit a instax cartridge. Rollers could be direct drive by hand and then it's just a small tab to push the film up into those rollers.

Would be easier to start with a camera or back. I'll have to grab a Diana instant back and play around with the adapter linked above.
 
I agree starting with the Polaroid back is the best idea, the you have an attachment, dark slide, and a base to attach the Instax to. Consider just replacing the back half of the original back and using the current hinge points, it will be easier to make it light tight.
 
It would be nice to rehouse the Diana instant back without motor or battery.

You could then get that bump on the front out of the way.

I agree, it would be nice to have something you could just pin onto a hassey 100 back and wallah magic instax!


Will have to wait until I can download the .stl tomorrow before work. I do not yet own a computer I use a friends set up in his workshop (I frequent often).

I have been loading gcode onto a SD every weekend full of projects to keep me busy during the week (I get out late/early morning) so far I've printed some pieces for my printer enclosure and a ton of space related models. Finished a Sputnik yesterday and am currently half way through a Voyager 1 model. Having already done a Explorer 1 and a failed Gemini capsule.
 
Taking the first step.

Purchased a Lomo'Instant NIB for 47$ including tax and postage. Should arrive Saturday in time to shoot a pack that evening before destroying the thing.

I will find a Polaroid back tonight and get that part coming.

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I found that the Diana instant back is really expensive compared to a new camera in its box.
I also believe the Lomo'Instant will be a better candidate with its relatively flat profile.
 
If, IF! I wanted to rig a Instax back for a Hasselblad the first thing I’d want to know is the distance from the back surface of the body to the film plane. Of course that (i would think) should be the same as the depth to film of a A12 back. Wouldn’t the problem be getting the Instax cartridge close enough to the lens that you can focus to infinity?

Asking because I don’t know, never used or owned a Hasselblad.
 
There is no available square instax back.

At the moment there are only two cameras available for that format.

Neither are cheap enough to destroy for experimental purposes.

So instax mini is as good a place to start as any.
 
001 by Nokton48, on Flickr

There is also the Hasselblad Single Exposure Back, which could be dremeled apart and would make a metal platform for the Instax. Just a possibility...........
 
Nokton48 said:
There is also the Hasselblad Single Exposure Back, which could be dremeled apart and would make a metal platform for the Instax. Just a possibility...........
Click to expand...

I did a quick search and couldn't find one, but they look cool!

On the other hand, there are 1000's of Polaroid backs floating around unable to be used and going super cheap - like $20.
 
Who is using sketchup?

I see there is a free version, and wow on the pro at 695$

Are you using the free-web based sketchup?
 
B-9 said:
Who is using sketchup?

I see there is a free version, and wow on the pro at 695$

Are you using the free-web based sketchup?
Click to expand...

I suggest freeCAD for a free program, it's got everything you need for personal use. I use Solidworks at work, but it's in the multiple thousands...
 
B-9 said:
Who is using sketchup?

I see there is a free version, and wow on the pro at 695$

Are you using the free-web based sketchup?
Click to expand...

I have used the free version in the past to 3d print with a makerbot. I believe I exported obj but you can also install the free slt plugin. It is one of the easiest programs to learn and there are plenty of helpful youtube videos. I don't have experience with freeCAD.

Here are some references.

http://extensions.sketchup.com/content/sketchup-stl

http://ashlandtech.org/2015/04/07/3d-printing-from-sketchup-to-the-makerbot-replicator-2/
 
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