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. (sh.itjust.works)

submitted 4 hours ago* (last edited 4 hours ago) by ThePantser@sh.itjust.works to c/3dprinting@lemmy.world

49 comments fedilink hide all child comments

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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[–] violentfart@lemmy.world 19 points 3 hours ago (2 children)

Well done, and I’m surprised at all the technophobes in a 3d printing community.

[–] BevsDad@lemmy.ca 1 points 1 hour ago

So long as it has a physical backup and can stay on my network I'm happy. I also need low power draw to stay bellow my 20w idle power budget but that's a me problem.

If anyone has a vertically mounted stainless steel option with a keypad to recommend I'm all ears!

[–] ThePantser@sh.itjust.works 8 points 3 hours ago

Yea its weird. I think its the AI and Data center hate. I am as local as I can be for my stuff and AI free. 99% of my stuff is Home Assistant, ESPhome, and Zigwave.