Diseño de circuitos impresos

True holes cobre - cooper hollow rivet for pcbs

http://www.oz4.us/2017/07/howto-rivets-for-double-sided-PCB.html

http://fab.cba.mit.edu/classes/863.16/doc/tutorials/PCB_Rivets/

Dryfilm

https://wiki.unloquer.org/proyectos/misc/circuitos_diy

CNC

https://wiki.unloquer.org/proyectos/cnc