Damn that sucks.
On a positive note... he hasn't broke contact and went dark.
CNC tooling isn't cheap. Neither is learning how to set it up and run it.
14k of wrecked materials is a kick in the shorts though. Unless he has some remedy (by going after the "machinist" that wrecked them) that is a straight up loss.
For a 1 or 2 person shop 14k of raw materials is the type of loss that may take years -if ever- to recover from.
Thanks for the update Counselor.