To fast prototype interconnection PCBs using direct ink on copper, with a cost of 0$ using all needed material from my surplus collection, I made a simple pen plotter using some old printers part, a STM bluepill board and few electronic components. The x axis is a carriage of a dot matrix...
I am a rookie, just started to learn PCB drawing, using Altium Designer 13.
I had a problem: I had to drill a hole in my board, just a physical hole, without electrical properties, not the kind of pad.
At first, because I didn't understand, so.
1. I drew a circle on the schematic Drill Drawing...