AAA Battery Magazine

AAA Battery Magazine

AAA battery holder in an AR-15 magazine design, not your typical battery holder!! It will hold approximately 22-24 batteries.

The AA version of this can be found at:  https://makerworld.com/en/models/520017#profileId-436416

A stand designed for your desk or wall can be found at:  https://makerworld.com/en/models/625511#profileId-549910

Design

The internal slide is supported by a printed spring. The spring works best printed in PETG or ABS which is more flexible and will retain it's shape better and for a longer period of time. The bottom cap is removable and is held in place with a locking tab that works the same way an actual AR-15 magazine locks in place.

The slots in the back show how many batteries are in the magazine.

Assembly

The magazine is very easy to assemble. The spring will friction fit into the bottom of the slide. Insert the slide into the bottom of the shell and let it slide up to the top. The locking clip goes in next and you'll have to hold the clip and spring down to slide the bottom cap on. The bottom cap slide from the front of the magazine to the rear (the open slots) and will click in place when the tab on the clip pops into the slot in the cap. The next step is to load the batteries!!!

-Update for Spring-

A two piece spring has been added.  This will allow printing on beds smaller that 256x256.  The two piece spring option does have a top and bottom. The longer spring section has a taller flat section that is meant top be at the bottom for support of the lock clip. The two pieces can be glued, melted or double sided adhesive tape together to make it one spring.

-Update for Magazine Shell-

I have revised the magazine shell file to provide a more finished look at the top & back of the magazine.  It will also provide more strength to resist the force the batteries put on the opening.

Printing

I have printed all the components using PLA and it works great. I suggest printing the spring in PETG since it is a more flexible material. The color of the spring really doesn't matter since you will not see it unless you open up the magazine. I would print a couple springs right away to have a spare. I don't have much information on how long the plastic spring will keep it's tension.

• The shell is set up to print vertical and has an internal brim.
• The slide is set up with auto tree supports and I haven't had any issues with it sliding.
• The bottom cap is set up using normal auto supports. I use an exacto knife to remove it after it's printed.
• The provided .3mf file does have all this setup and placed on a plate.

All the components fit on one sheet on my P1S. I have printed the slide and bottom clip in a different color to accent them.

This model works but is always being tweaked and improved. Please let me know of any issues and/or any items needing improvement!!