I made a few errors with the first production version (mk-1) of the scanner bed:
- wrinkled tape around the scanning tube caused the negative carrier to skip and occasionally hang up
- the scanning bed was shorter than the negative carrier
- the single security flap was insufficient to keep the negative carrier on the scanner bed and it would sometimes slide out during scanning
So I rebuilt it.
The prototype (not pictured) was made from a small flat-rate USPS box, and the cardboard on it was smooth and thin. For the mk-1, I used a narrow-walled corrugated box that was much rougher, heavier, harder to work with, and seemed ready to scratch a negative at any turn (much like the prototype, which I used before acquiring the Lomography Digitaliza).
For the mk-2, I constructed the scanning tube out of the tube from a spent roll of duct tape, and instead of using only step-up rings to, I added a couple of step-down rings to make it a bit sturdier.
I was also a bit more precise with my measurements, and used purpose-cut foam core instead of the cardboard scrap I used for the mk-1.
I did make one error that caused me to have to dis-assemble II and shift the scanning bed by 2mm, but even with the slightly sloppy-looking tape, I think the mk-II will serve me well… unless and until I decide to construct a mk III. (For that, I’ll need some new XACTO blades…)
And here it is… the moment you’ve been waiting for…
the Scan-O-Matic 7000 II!