[chbot] PCB fab, and shipping

[Mark Atherton]

10 pcs 40 x 60mm double sided PCB, from https://jlcpcb.com/

24 May 2020, Gerbers uploaded

28 May 2020, DHL pickup

02 Jun 2020, DHL delivered

9 days total, which is pretty good by normal standards.

DHL seem to have dropped their cost - don't think I have ever had an 
express shipment for US$19 before.

Shipping is the dominant cost, since the PCBs (up to 100 x 100) were US$5.

Converted to real-money this all worked out at about NZ$38 total. I was 
expecting something closer to NZ$55.

-Mark