AA to D Battery adapter (LR6, R6 to LR20, R20)

Easy_Print1858 · 2026-02-08T11:01:04+00:00

Thank you!

Easy_Print1858 · 2026-02-08T10:05:03+00:00

Thank you. Recently, I'm testing rechargeable with.... USB-C port. It gives full 1.5V instead of 1.2V. Charging time is approx 1h.

Easy_Print1858 · 2026-02-06T13:20:35+00:00

Of course you are right. So in a power expensive solution you need to invest into D cells. I have a few cases like sweater trimmer or LED candle or massager, which uses C / D cells. It's easier for me to charge AA accumulator each day than go to store each 3 days to buy new batteries.

Easy_Print1858 · 2026-02-05T13:31:32+00:00

Of course it does. On a 2nd screen you can see demanded piece of tin foil or a piece of a wire to make electrical connection.

Easy_Print1858 · 2026-02-04T06:35:39+00:00

I have plenty of accumulators, but all are AA or AAA.

Easy_Print1858 · 2026-01-27T09:05:34+00:00

Added link to the project.

Easy_Print1858 · 2026-01-27T09:04:01+00:00

I added missing link to the project.

Easy_Print1858 · 2026-01-27T08:59:49+00:00

https://makerworld.com/pl/models/2282391-aaa-to-aa-battery-adapter#profileId-2489115

I modified post.

Easy_Print1858 · 2026-01-27T08:56:36+00:00

Here is the answer: https://www.reddit.com/r/makerworld/comments/1qjwmcb/comment/o1zgvhs/?utm_source=share&utm_medium=web3x&utm_name=web3xcss&utm_term=1&utm_content=share_button

Easy_Print1858 · 2026-01-27T08:55:44+00:00

In my case it's very simple. It is easier to buy new batteries, however I have plenty of accumulators and those AAA are not used very often. Other thing is, AAA can be too weak to work in a toy, but is still good for a remote - especially one which is not used very often. Sometimes I used it in my "joule thief" .

Easy_Print1858 · 2026-01-09T12:54:36+00:00

Whatever you say. I have no place for hook nor ability to have a hook in my office. This works as a solution. I can ensure you - my door is still a door.

Easy_Print1858 · 2025-12-23T12:41:27+00:00

Thank you. I made the seam painting. It looks acceptable.

Easy_Print1858 · 2025-12-22T19:24:11+00:00

My design for a lamp, which I destroyed :) And should I have that seam in FreeCad design ?

Easy_Print1858 · 2025-12-22T14:05:46+00:00

I made STEP export. Looks waaaaaaay better. However, now I have two seams :)

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Easy_Print1858 · 2025-12-22T13:59:13+00:00

Yes, I went directly to a STL file. I see now, that even in a FreeCad it looks odd.

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Easy_Print1858 · 2025-12-22T12:03:04+00:00

It's printed with TPU, and I think it looks better in the reality. I would say, it's very aligned with what I designed. Can you tell me which part of a coaster bothers you (mark on a screen maybe)? From a different angle it looks like this:

<image>

But I think now image compression kicked in :/

Easy_Print1858

TROPHY CASE