RE: K Battery substitute in 110 cameras
Here is a copy of my recent 'Submini-L.groups.io' post on a 3D printed K battery substitute currently under design and test:
>> Hi All,
>> I am please to report on the K battery substitute. Further to:
>>
>>
https://submini-l.groups.io/g/main/message/20808?p=,,,20,0,0,0::relevance,,posterid%3A1254921,20,2,160,7814597
>>
>> Greg recently produced a first sample, and I recently received it for
>> testing. I made the necessary contacts with adhesive-backed copper
>> foil, loaded the test device with three hearing aid batteries, and
>> inserted it in a new to me Kodak Pocket Instamatic 50 camera along
>> with a 110 cartridge reloaded with 16mm ORWO UN54+ film and shot a
>> test roll. I developed the film earlier today in Beutler 1+1+10 and
>> got nice negatives.
>>
>> There were some difficulties in getting the right frame spacing, but
>> for the most part, the exposures were right on with this test
>> arrangement. The new device is a single printed piece, so it does not
>> suffer from the fit and finish problem of the commercially available K
>> battery substitute.
>>
>> As a first test with a new to me camera, new battery substitute, and
>> new developer I was very pleased with the result. Not bad for a
>> nearly 50 year old consumer camera.
>>
>> The initial test model is being redesigned right now with capacity for
>> alternate batteries, including I hope a readily available rechargeable
>> 3.7V cell. It is well-known that the Kodak 30 to 60 models will
>> function correctly with battery voltage of 3V and above.
>>
>> Imagine all those K battery cameras being able to see renewed life!
>> Thanks Greg!
>>
Regards/73
Terry