Set of Holders for Scanning of Stereo Reels (ViewMaster)

This is my set of tools for digitizing stereo (a.k.a. ViewMaster) reels on commercial transparency scanners.

Two variants of the main reelholder are provided

1. rectangular shape for any flatbed transparency scanner
2. triangular shape to work with Epson 700/750/800/850 scanners which I highly recommend
3. plus an older variant of (1)

There are incisions in the holders that align with #1 pair of frames for easier orientation in the scanned image. Also next to each frame there is a number (1..7) of holes meaning the number of the pictures. The holes are circular for left frame and square for right frame.

Each of these printables fit on the tiny bed of Prusa Mini.

The M6 leveling screws are provided for eventual tinkering with the focusing plane of the scanner - though this need is very rare.

Also provided is a printable dummy stereo reel for calibration usage. Several patterns are printed in the windows to help calibrate your scanning/viewing equipment - their resolution is of course limited by the 3D printer used.  To achieve a fine level of calibration the position 1 in this reel includes eyelets for inserting a thin hair to serve as a fine calibration target.

Any black or dark grey printing material is OK (to prevent reflections). The photographed color samples are only for better visibility.
A 0.4mm nozzle works fine; a smaller one may be better.

I recommend using the excellent ReelTOOL software for postprocessing. Contact me if unavailable.

PLS feel free to contact me for modifications, feedback etc.

P.S.: The Prusa eshop wants me to make 5 sales to prove myself so I am decreasing the price to 5USD for the first 5 downloads.