Thread: BMMCC 14.8V Battery Module by RADIOPROEKTOR

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  1. #11  
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    some nicework there

    maybe the battery life indicator button and LED placement is not ideal though?
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  2. #12  
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    oh man, I do love this...but this would be the 5th battery system I have for my BMMCC.
    - Stock Canon LP-e6 (a slew)
    - 2x Sony NP-F with Cheesy Cam bridge (2 Big NP's and 2 smaller)
    - Juice BoxV1 (2x with one being a bit wonky)
    - Mini V-Mount on a smallrig plate with a custom DTap y-cable

    won't lie - quite love the V-mount system at the moment. The smallest Juicebox v-mount is actually lighter than the IndiePro Mini

    IMG_8405.jpg
    IMG_3219.jpg
    IMG_0257.jpg
    IMG_6249.jpg

    (apologize for not rigging the dtap in the mini shots, but I just can't even today...)
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  3. #13  
    Senior Member shijan's Avatar
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    Quote Originally Posted by Stelvis View Post
    some nicework there

    maybe the battery life indicator button and LED placement is not ideal though?
    Yes, indicator placement is a compromise because space is limited. There is just no any other place for it. Currently i experiment with body length and slightly move things.

    P.S. Today i finally found nice button cap for battery indicator button https://www.aliexpress.com/item/50PC...79377179.html?

    All my custom made accessories for BMMCC/BMMSC now available here https://lavky.com/radioproektor/
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  4. #14  
    Senior Member shijan's Avatar
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    Quote Originally Posted by tmronin View Post
    oh man, I do love this...but this would be the 5th battery system I have for my BMMCC.
    - Stock Canon LP-e6 (a slew)
    - 2x Sony NP-F with Cheesy Cam bridge (2 Big NP's and 2 smaller)
    - Juice BoxV1 (2x with one being a bit wonky)
    - Mini V-Mount on a smallrig plate with a custom DTap y-cable

    won't lie - quite love the V-mount system at the moment. The smallest Juicebox v-mount is actually lighter than the IndiePro Mini

    (apologize for not rigging the dtap in the mini shots, but I just can't even today...)

    As i noticed earlier this battery is not a replacement for large V-Mount power source. It replacement for Juice Box/Sony NP-F but with better ergonomics and slightly larger capacity. Also price expected to be way lower than V-Mount battery with typical V-Lock plate with build-in connectors splitter.
    Also probably for request it will be possible to fit additional voltage regulation board inside to output additional 7.4V.

    P.S. Almost done the sketch of capacity circuit indicator board holder. Those parts will be 3D printed.
    Need to design clamps for rear shell now...

    All my custom made accessories for BMMCC/BMMSC now available here https://lavky.com/radioproektor/
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  5. #15  
    Senior Member shijan's Avatar
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    After some tests i back to cheese plate version. It is just simpler and more universal concept.


    All my custom made accessories for BMMCC/BMMSC now available here https://lavky.com/radioproektor/
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  6. #16  
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    Looking good!
    Cheers
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  7. #17  
    Senior Member shijan's Avatar
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    ...and some final design touch. Also done some changes to internal aluminum frame.



    All my custom made accessories for BMMCC/BMMSC now available here https://lavky.com/radioproektor/
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  8. #18  
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    Hey Shijan, it's Eliott, i've bought pretty much everything of your items and always been very satisfied!

    About the battery,
    If I can use it for worldwide traveling (means allowed in airplanes), then you can put me on the waiting list right away. I'll probably buy a couple to try it and if satisfied, again 2 more. This seems like perfect solution for my kind of use.
    BTW I'm way more interested in the cheese plate version, which seems safer to me. Did you plan any quick release system or maybe something already on the market from SmallRig?

    Regards
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  9. #19  
    Senior Member shijan's Avatar
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    Quote Originally Posted by EliottG View Post
    Hey Shijan, it's Eliott, i've bought pretty much everything of your items and always been very satisfied!

    About the battery,
    If I can use it for worldwide traveling (means allowed in airplanes), then you can put me on the waiting list right away. I'll probably buy a couple to try it and if satisfied, again 2 more. This seems like perfect solution for my kind of use.
    BTW I'm way more interested in the cheese plate version, which seems safer to me. Did you plan any quick release system or maybe something already on the market from SmallRig?

    Regards
    I plane to create interchangeable mounting plates for it: LP-E6, Sony NP-F, and V-Mount. All compatible with common cheese plates holes pitch so you can screw that plates to other camera gear if needed. Mounting plates will be 3D printed. I also plane to share 3D models of those plates for free, so if you break or lost it, you can quickly print new part locally.

    Rear shell will be 3D printed from hard rubber material Elastan D70. It is very durable, and shockproof.

    To avoid problems with airlines shipping regulation Batteries will NOT be included in the package. So you can start to seek for 18650 unprotected batteries in your local stores. SAMSUNG INR18650-30Q or SONY US18650VTC6 30A or Panasonic NCR18650B 3400mAh (unprotected) are recommended. It will cost you about $20-25 for 4x battery kit.

    Battery is 44.4 Watt Hours (if use 4x 3000 Mah cells) , no any problems with traveling (100 Watt Hours limit). Also if needed you can always easily open the enclosure, remove 18650 battery cells and put them to safe place.

    Charger also will be optional. If you already own 16.8V DC Charger for V-mount battery, you can use it with this battery. Any 16.8V 1A or 2A DC Charger from ebay will work with it. They costs about $5-10.

    If things goes well, first assembled samples will be available in 4-5 weeks.


    P.S. As a simplest and cheapest QR system you can just use Arca Swiss.
    Also you can can just screw SmallRig Super lightweight 15mm RailBlock v3 942 to it and clamp to the rods.
    Other options:
    A MiniMart makes very compact Mini Rapid Quick Release Plate http://www.aminimart.com/mini-rapid-...led-light.html
    SmallRig makes nice NATO clamps system.
    Slidekamera also makes ultra compact V-Mount system https://www.slidekamera.com/v-mount-...plate-set.html




    I also checked total weight. Probably it will fit to 350-450g (full kit with batteries). It feels rather lightweight in hands and seems it will not overload LP-E6 mount.

    Last edited by shijan; 05-13-2018 at 01:42 AM.
    All my custom made accessories for BMMCC/BMMSC now available here https://lavky.com/radioproektor/
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  10. #20  
    Senior Member shijan's Avatar
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    That tiny ON/OFF switch comes in Black and Red colors.



    All my custom made accessories for BMMCC/BMMSC now available here https://lavky.com/radioproektor/
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