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Thread: Midtone Machines - Automatic Film Processing Machine

  1. #81

    Re: Midtone Machines - Automatic Film Processing Machine

    New post up, nearly done designing the custom PCB's that will clear out the current wiring rats-nest and make manufacturing/production of the machine faster and cheaper.

    http://midtonemachines.com/news/pcb-design/

  2. #82

    Join Date
    Dec 2014
    Location
    Iowa City, Iowa
    Posts
    920

    Re: Midtone Machines - Automatic Film Processing Machine

    Looks very nice. And yes your time is best spent doing what you are doing. Steady progress.
    Best Regards Mike

  3. #83

    Re: Midtone Machines - Automatic Film Processing Machine

    PCBs are done and working, I've also put together a dummy body shell out of laser cut MDF for testing purposes, that I think also looks pretty good given that it's just for testing:

    http://midtonemachines.com/news/fini...nd-dummy-body/

  4. #84

    Join Date
    Jul 2013
    Posts
    105

    Re: Midtone Machines - Automatic Film Processing Machine

    Quote Originally Posted by AndrewBurns View Post
    PCBs are done and working, I've also put together a dummy body shell out of laser cut MDF for testing purposes, that I think also looks pretty good given that it's just for testing:

    http://midtonemachines.com/news/fini...nd-dummy-body/
    Gr8!


    Sent from my iPhone using Tapatalk

  5. #85
    loujon
    Join Date
    Feb 2007
    Location
    Western, PA.
    Posts
    1,477

    Re: Midtone Machines - Automatic Film Processing Machine

    The shell, as does other parts sure looks a lot like my Phototherm SSK8

  6. #86

    Re: Midtone Machines - Automatic Film Processing Machine

    Yeah as I've said in previous blog posts I didn't intend for it to turn out that way when I started the project, I actually intended it to look a lot more like the filmomat, but as I started working through the various choices I had I worked out that for my target market the various features of the Phototherm unit make a lot more sense. That said the internals are significantly different between the two, different pumps, valves, heater system, control unit etc. So think of it as a smaller and (hopefully) cheaper SSK8 with totally modernised internals that will be just as if not more capable and much easier to use.

  7. #87

    Join Date
    Dec 2014
    Location
    Iowa City, Iowa
    Posts
    920

    Re: Midtone Machines - Automatic Film Processing Machine

    Looks great. Galvanic corrosion, previous life I was involved with the use of stainless steel for home appliances. Terrible application for stainless. We had pitting corrosion issues no matter what alloy. Contamination from carbon steel, homeowners using steel wool, you name it. If everything is the same alloy no problem.

    I showed a manager why we had to use all stainless fasteners. I stuck a piece of the 300 series SS in a potato and a galvanized steel screw in the other end and showed him the voltage on a multi meter. We had no more streaks of red (or white ) after that.

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