Sick of Beige standard PCB sizes v1.0
Revision as of 15:51, 26 April 2012
To go along with our Sick of Beige cases we started using standard PCBs. There are two versions,each of which comes in 7 different sizes. One is a Golden Ration rectangle, while the other is a square. All the PCBs have 4 mounting holes in each corner which are not connected to any traces or fills on the PCB.
List of sizes
*Note: This is not a Golden ratio rectangle, but the maximum Cadsoft Eagle PCB size for users with a free license.
Hole dimensions and locations
Holes are located in the 4 corners exactly 4mm from the closest vertical, and horizontal edge. They are 3.2mm in diameter.
Cooper keep-out area
Around each hole there is a cooper keep-out area approximately 5mm from the center of the hole. In this area no traces, or ground fills are aplicable, to avoid contact with metallic standoffs,and screws.
Component placement keep-off area
No component may be placed 1.7mm from an edge of the board. this is for posible future cases that hold the PCB by the edges
Board's round corners
Each corner of the board is rounded with an arc 4mm in radius.
Reference points and lines
Runing through the exact middle, both lengthwise, and lengthwise, is a reference line. Also added are two reference point for USB mini-B jack, 5.25mm for the left and right edges.