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Thread: Midtone Machines - Automatic Film Processing Machine

  1. #101

    Re: Midtone Machines - Automatic Film Processing Machine

    Another new blog post, new company logo and some website updates: http://midtonemachines.com/news/new-...-and-progress/

    The machine is now fully capable of processing B&W, I'm actually starting to run out of things to do on it now, so I'm going to have to start doing the boring things like making a BOM (bill of materials) to figure out how much it actually costs to make one...

  2. #102

    Re: Midtone Machines - Automatic Film Processing Machine

    RE: Name, why not something that pays tribute or homage to what it was originally based off aka Phototherm.

    Bests,
    C
    The Container Lab
    www.thecontainerlab.com/blog

  3. #103

    Join Date
    Dec 2014
    Location
    Iowa City, Iowa
    Posts
    1,090

    Re: Midtone Machines - Automatic Film Processing Machine

    Well maybe Burns-O-Matic,

    Midtone Rapid Color Processor

  4. #104

    Re: Midtone Machines - Automatic Film Processing Machine

    Midtone RFP-4? (rapid film processor 4, for 4 rolls of 35mm per tank)

  5. #105

    Re: Midtone Machines - Automatic Film Processing Machine

    Quote Originally Posted by AndrewBurns View Post
    Midtone RFP-4? (rapid film processor 4, for 4 rolls of 35mm per tank)
    The first version of the Phototherm was the FP-1, although rapid kind of implies something like a x-ray film dev process.
    The Container Lab
    www.thecontainerlab.com/blog

  6. #106

    Join Date
    Dec 2015
    Location
    Jacksonville, FL
    Posts
    127

    Re: Midtone Machines - Automatic Film Processing Machine

    I'd say something simple like Midtone Machine AFP-4

  7. #107

    Re: Midtone Machines - Automatic Film Processing Machine

    New blog post up and new name for the machine, it's now officially the Chromabox-4

    I'm struggling with my ancient 3D printer while in isolation so I'm looking for suggestions for when I'm able to shop online again, let me know if you have an idea of what printer I should get!

    http://midtonemachines.com/news/pinc...ers-and-names/

  8. #108

    Join Date
    Dec 2014
    Location
    Iowa City, Iowa
    Posts
    1,090

    Re: Midtone Machines - Automatic Film Processing Machine

    Leaking valves. 30 years ago when I was still working as a chemist we did a lot of manual titrations. Teflon stopcock Pyrex burette. 1/10 molar HCl never seeped around the stopcock. 1/10 molar NaOH just wouldn't stay in the burette, after about 30 minutes you would see some leakage, if you left it over the weekend, we would come back to a crust of dry sodium hydroxide around the joint.
    I have tanks with floating lids dilute working solution of hypo clearing agent, doesn't leak through the self closing tap, if I try to store the 5X concentrate it seeps and clogs the valve. This stuff is mostly sodium sulfite solution.

  9. #109

    Re: Midtone Machines - Automatic Film Processing Machine

    Managed to print enough valve parts to retrofit the prototype and the leaking is gone. I've also got the heater systems up and running nicely. Here's a really short teaser video of the Chromabox-4 in action, cycling through 6 different 'chemicals' one after the other. What you don't see is the automatic water and air flush cycles that happen between different chemicals to prevent cross-contamination (which would have been visible in the video as colour contamination between the different bottles).


  10. #110

    Re: Midtone Machines - Automatic Film Processing Machine

    Chromabox-4...? Hmmm not feeling it, let me know when you produce retrofit tanks for Phototherm machines
    The Container Lab
    www.thecontainerlab.com/blog

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