3DPrinting

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3DPrinting is a place where makers of all skill levels and walks of life can learn about and discuss 3D printing and development of 3D printed parts and devices.

The r/functionalprint community is now located at: or !functionalprint@fedia.io

There are CAD communities available at: !cad@lemmy.world or !freecad@lemmy.ml

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founded 3 years ago

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Tired of expensive disposable batteries and rechargeable AA suck. So I made a 10k mAh pack for my deadbolt. (europe.pub)

submitted 1 week ago* by ThePantser@sh.itjust.works to c/3dprinting@lemmy.world

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Eneloops would only last about 3 weeks. And disposable last 2 months. This door is used a lot and since it has Zwave and a door open sensor it sends info on every open.

Bonus, since it can handle the lipo AA batteries that put out 1.8v and it gives the motor more oomph I made the battery pack give 7.2v and it never sticks anymore.

This is a garage-door so its not critical access but is used a lot.

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[–] ThePantser@sh.itjust.works [S] 5 points 1 week ago

I could, I actually have a outlet near that I could just run the wire to the battery pack to keep it charged and so the battery would just be a UPS. Actually a good idea and I could have just used 2 18650s for the UPS.

Although this model has a external port to jump start from a USB battery pack.

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