The space between a pcb's edge and traces and holes, how much should it be?
A PCB is designed for use with an Arduino mega.
I want to know if there is a good rule for how much
space I should leave between the edge of the pcb and various items, such as traces, surface mounts etc.
The space around everything is 0.1" except of a through hole for a DC jack, which comes 0.05" from the edge. Can I remove some of this space without hurting my design?
In a DRC file,it is ususlly specified the minimum clearances and other parameters, and used to verify the layout meets these rules before Gerbers are generated.
In your case, you are safe with a 20mil clearance.