26700 / 26650 cell battery bracket mount holder thing

I needed a semi modular bracket to hold packs of five cells, and designed this.

Unlike puzzle piece interlocking designs, mine just uses holes that will be ziptied together for flexibility in both pattern / orientation and also literal flex in the pack as a whole.

The idea is that the cell faces are left open for soldering to each other.

My cells happen to be 26700s, but anything with that 26.5 mm diameter (like the popular 26650) should work, since the length doesn't matter to this de