LR44 to AA Battery Adapter
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Make a simple lightweight adapter using a paperclip! For LR44, AG13, or A675 batteries.
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Informacje o modelu
- Źródło
- Printables
- Kategoria
- Electronics
- Licencja
- Creative Commons — Attribution — Noncommercial
What/Why is this?:
I decided to bring to the earth what it was sorely missing. A printable adapter to use an LR44 battery in a AA battery slot! It uses a single paper clip as contact for the battery terminals, and comes with two files: One for a standard (~28-35mm) paper clip and one for a Jumbo (50-58mm) paper clip.
Standard paper clips are roughly 0.8mm in diameter and the jumbos are around 1.1mm.
The whole thing (battery + paperclip + 3D print) weighs less than 4g, prints without supports, and costs less than $0.20 to make.
Compared to an alkaline AA, using a ZA675 battery shreds ~18g of weight. Great for an easy non-destructive mouse mod.
Instructions:
- Print the correctly-sized part for your paper clip (already in printing orientation, no supports needed). See Print Settings section below.
- Unfold your paper clip. Get it as straight as you can.
- Bend the paper clip so that one side is shorter. See the 4th pic for reference.
- Insert the longer part of the paper clip into the top hole of the battery seat. See pic 5 for reference.
- Push the paper clip all the way through so it sticks out like in pic 6.
- Bend away the rest of the clip into the recess on the bottom of the adapter. It's kinda hard to hide all of it but if a little bit sticks out it's fine.
- Insert the battery into the adapter and you're done! It can be seated either way, but the default is to have the small side facing out like in pic 2.
Some AA battery receptacles are different, so you can flip the adapter or the LR44 around if you need a different side touching the spring terminal. Remember that the Positive is the flat side and Negative is the small side.
Print Settings
- 2-3 perimeters
- “Only infill where needed” in Prusaslicer/Superslicer. Not sure if there's an equivalent for Cura but it isn't 100% necessary.
- Vary your infill based off your desperation for weight savings. I used the setting mentioned above with 18% gyroid infill.
- Print relatively slow. The holes and bottom surface are small.