How do you make a Bahnzo's Box
mod?
Thought I'd document what goes into each hardwood box
mod I make. Here's Part 1. This is all for an 18650
mod.
First, cut a board roughly to length for the mod size needed. Then get out the hand plane and square up the board.

Then measure the side and cut to length. Repeat 3x so you have all four sides.

Each side needs to be the same exact length and width. So back to the hand plane to further square and trim each side precisely.

Don't forget to measure every couple slices or so....
And then finally make sure it's square.
And when you are done, you'll have a little pile of lumber that's perfectly matched and sized.