Via using Eagle Options

[cranwell]

A good friend of mine , a 40 year EE from IBM, suggested I use several vias through my mounting pads so that if I insert a mounting screw and it disturbs the mounting hole thru plating, I will still have a good circuit from top to bottom of the circit board.

In trying this with Eagle, I get DRC errors for drill size and clearance.

Do you have any suggestions on how to accomplish this?

Thganks

Pete

[Orlando Hernande...]

I am not sure what "several vias through my mounting pads" mean, but as long as you abide by the process rules you should be fine. You could just ignore those errors.

[cranwell]

I am not sure what "several vias through my mounting pads" mean, but as long as you abide by the process rules you should be fine. You could just ignore those errors.

A mounting pad has a large plated through hole , through which a screw is placed. In mounting, using a mounting pad, it is possible to destroy the plating on the inside of the hole from the action of inserting and removing the screw. One suggestion was to add several smaller plated through holes in the periphery of the pad so that there are several vias connecting the top and bottom of the board and interconnecting the mounting pads.

In your proto bpoard you do not interconnect top to bottom via the mounting pads but in some Eagle routing, they use the mounting pads to connect circuits from top to bottom.

Perhaps I need to explore a way to prevent the pads from being used to connect the top to the bottom of the board.