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4x5 film development tank — image 1

4x5 film development tank

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Based on the combiplan. Print in black ABS and acetone smooth to make it waterproof. Glue parts together with acetone.

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Updated at source:

Model information

License
Creative Commons — Public Domain

DO NOT GLUE THE TOP FILM RETAINER

It should be loose so you can slide film in/out.
Use a dummy sheet of film to get the tolerances right before permanently gluing together.

Open source with STEP files

 

26.02.23
Updated to v3

  • Light proof lid, can fill tank in ~8 seconds, empties in ~6 seconds.
  • Uses TPU seals, print in soft TPU for good seal (tried with 95A TPU, does not work)
  • Uses 2x M3 threaded brass inserts and 2x M3 40mm bolts for the latches
     

Might be better to use silicone for seal. 

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