Hi all,
I'm designing a few PCBs, and there's a few fundamental things I realise I don't know/understand - hopefully someone can help.
How close to the edge of the PCB can my traces be? (in mm, or mil)? I can't seem to find a definitive answer, but I guess there must be a general rule? I've generally got between 2 and 3mm - is this enough?
Mounting holes: Firstly, can someone explain what people are doing/thinking when they have pads/vias right through the board, which are then (sometimes) used as earths? Why wouldn't I just have a hole, with no copper in sight? Secondly, how should I go about mounting a PCB in a rack (say, a 1u case)? What do people use? I've seen people using glue, and sticky plastic things, but I'd rather have it mounted properly (like a computer motherboard) - any tips?
I hope someone can help out!
Thanks
I'm designing a few PCBs, and there's a few fundamental things I realise I don't know/understand - hopefully someone can help.
How close to the edge of the PCB can my traces be? (in mm, or mil)? I can't seem to find a definitive answer, but I guess there must be a general rule? I've generally got between 2 and 3mm - is this enough?
Mounting holes: Firstly, can someone explain what people are doing/thinking when they have pads/vias right through the board, which are then (sometimes) used as earths? Why wouldn't I just have a hole, with no copper in sight? Secondly, how should I go about mounting a PCB in a rack (say, a 1u case)? What do people use? I've seen people using glue, and sticky plastic things, but I'd rather have it mounted properly (like a computer motherboard) - any tips?
I hope someone can help out!
Thanks