Modify Instax Wide 300 for Mamiya Press & Polaroid 600SE Lenses

Read Updated Instructions First!: https://sprkplg.com/wide300mod/

Free files here (older revisions): https://www.printables.com/@SPRKPLG/m...
Exclusive & test files, updated revs, giveaways:   / sprkplg  
Blog & Store: https://sprkplg.com/

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Got an Instax Wide 300 with a broken lens? Repurpose it as an Instax Wide back! This tutorial is centered around use of my Mamiya Press or Polaroid 600SE adapters, but nothing stops you from using these same instructions and adding a lens solution of your own (Pinhole Wide 300? Mmmmm).

ADAPTERS
Mamiya Press (Universal, Super23, etc): https://sprkplg.com/product/mp-wide30...
Polaroid 600SE: https://sprkplg.com/product/600se-wid...

TOOLS/MATERIALS USED
Priline Carbon Fiber Ploycarbonate (adapter material): https://amzn.to/2HvwuBG
Cold shoes: https://amzn.to/2Tr5Qwk
Luxjet LS-1 laser measurement tool: https://amzn.to/3e6A95n
or IIDA DM-01 laser measurement tool: https://amzn.to/35vryVF
Switches: https://amzn.to/3osiDgG
Shrink tubing for wiring: https://amzn.to/3oj2E4p
Hardware: https://amzn.to/37D3XFi
Sugru for adapter light sealing: https://amzn.to/3jpQOBJ
Foam tape for internal light sealing: https://amzn.to/2Tk0jId
Super glue for mount: https://amzn.to/35tgHM0
Deburring tool to enlarge holes: https://amzn.to/3onhbvV
Grommets for cable release integration: https://amzn.to/31EJ2Oa
Cable release: https://www.bhphotovideo.com/c/produc...
Instax wide in bulk: https://amzn.to/35uMdt8
Screwdriver set: https://amzn.to/34srirj
Scissors
Exacto knife
Flush cutters

OPTIONAL for DIY MAMIYA PRESS (no adapter purchase needed)
1. Extension Tubes #2 + #3 or #5
2. Dremel or cutting tool
3. Sandpaper
4. Ground Glass installed into an empty Instax Wide cartridge
5. Epoxy or your choice for permanently attaching the macro tube to the camera

REWIRING
1. Connect thick black wire (negative battery terminal) to the thin black wire of the switch/button board. Or solder the thin black wire to the negative battery terminal and eliminate the thick wire.
2. Connect the thin blue wire from the switch/button board to the thick green wire (top terminal) of the motor. Or solder the thin blue wire to the top motor terminal and eliminate the green wire.
3. Connect the thick pink/red wire (positive battery terminal) to the thick blue wire (bottom terminal) of the motor. Or solder the thick pink/red wire to the bottom motor terminal and eliminate the thick blue wire.
4. No other wires are needed, you can remove the thin pink wire completely.