About teardrops, slivers, drilling, coupons, VIAs, plating, 90 Degree corners, thermal relief, cost and more ... I had an opportunity to record a video about PCB manufacturing in Sierra Circuits: https://www.protoexpress.com/ So, here it is. Enjoy :) Would you like to support me in what I do? It's simple: - sign up for one of our Schematic and PCB Design online courses at http://www.fedevel.com/academy/ - support me through Patreon page https://www.patreon.com/robertferanec - sign up for my Udemy course, Learn to Design Your Own Boards https://www.udemy.com/learn-to-design... Or: - send me an email and/or leave a positive comment - watch and like the videos :) - read my Welldone Blog at http://www.fedevel.com/welldoneblog/ - spread a word about FEDEVEL Academy It is much appreciated. - Robert