Modular 21700 battery cell spacer tile

By Byteworks

Four staggered-honeycomb 21700 cell holder tiles laid out in a 2x2 lattice, each tile now 4 columns of 5 cells, with dovetail tabs on its right and top edges that lock into sockets on the left and bottom edges of the next tile.

Model
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Modular 21700 battery cell spacer tile, 3D printable model

Prompt that made this

Can we add dovetails in the locations indicated in this sketch, highlighted in red?

Open the model

Made in Voloom from the prompt under the model. Sign in to download the STL, or fork it so every size on the right becomes editable — without spending credits.

Why this one

Holder that keeps 21700 Li-ion cells upright in a tight staggered honeycomb pack, and can be extended by interlocking tiles.

Each cell drops through a 21.5 mm bore in the 6 mm flange. Tiles join side to side and end to end by dovetails: tabs on the right and top edges slide into sockets on the left and bottom edges of the neighbouring tile. The hex lattice continues across tile joints, so cell spacing is the same everywhere.

How to print

Download the STL, 3MF, or STEP and slice it. Fork the design to change a size before you print.

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