JLCPCB Aluminum PCB manufacturing notes + USB connectors

[3roomlab]

*to clarify
wider in the width between slot
in my case the mill = 0.8mm, forces the slot space to squeeze together when folded
so if you do not need the slot space to squeeze into itself, then i think the milling needs to be larger than the thickness of the board.
then there is the 1 with not enough cut slots, and the entire piece just curves 

[thmjpr]

90 degree is tough. If you haven't worked with sheet aluminum then its hard to know what bends are appropriate. I like the box idea though. https://www.protocase.com/resources/bend-radius.php

Another thing I forgot to explain clearly, is that you can only bend inward if you want to preserve copper traces (copper layer gets compressed). If you bend outward, with your copper traces on the top, they will stretch out and quickly crack. You might get a few degrees bend before this happens.

So if you want an "outward bend" design, you could add pads for wires to cross over the bend.