Clearly marking component footprints can help avoid issues with manufacturing. Here are some ways to mark diodes on you pcb.
Mounting holes are useful for attaching PCBs to enclosures and other flat surfaces. Here are some things to watch out for when using them.
When picking trace widths to route a PCB, there are a few rules and guidelines that will help inform the value of the trace width.
Adding external Part Libraries, DRCs, and CAM files to KiCad
How to start using the EFM8 series of Microcontrollers.
An AVR MCU example board using the Tag-Connect TC2030 cable for programming.
An introduction into pogo pin programming cables and their usefulness in prototyping and low volume manufacturing.
How to add custom part libraries and files to Eagle.
Adding external Part Libraries, DRCs, and CAM files to Diptrace
How to route BGA style footprints.