Simple 18650 cell spacer, holder and insulator.

Cell pitch: 19.70mm (19.50 for tight version)

Simply clip in place and weld the nickel strips above it.

Any linear layout is possible. I might also release a 60 degrees version (to minimize overall strips length) but for space, cooling and simplicity, the linear pattern clearly rules.

No

No

0.15

25

Print at 0.15mm
Z-seam alignment relative: back right