Reading a spec sheet for a power socket

You can route big slots (for example for isolation) but usually narrow

Drilled slots (G85) are made with a bunch of overlapping drilling operations so it's like a slightly higher hole density. Usually no noticable additional cost unless hole density is really high. No additional tools either, just a bit of time on a huge multi-spindle machine. (and since the holes are close spaced the X-Y moves between holes are very fast).

Here is Excellon's description:

G85 Cuts a slot by drilling a series of closely spaced holes between two points. The start of the hole is programmed with an X and Y coordinate, followed by the command, followed by the ending X and Y coordinate. The tool is specified with a T command prior to the G85 command. The tool size MUST be specified prior to using this command. The size may be provided by the Operator through the console, in the part program body, or the part program (M48) header. The slot is as wide as the drill bit used. The slot is created by drilling a series of evenly spaced adjacent holes from one end of the slot to the other. This leaves protrusions around the edge of the hole. Then another set of spaced holes is drilled between the previous set. This continues until a smooth sided slot has been produced. The holes are spaced close enough that these protrusions are less than 0.0005".

Sylvia Else schreef op 05/23/2015 om 10:41 AM:

AFAIK Pro-power is one of Farnell's own Chinese crap brands (like Tenma and Multicomp). Better look for a connector from a real brand and you'll probably find it has proper specs.

Lasse Langwadt Christensen schreef op 05/24/2015 om 03:53 PM:

Not really. I think they also mill the larger (>2mm) plated through holes in a board. It saves having an enormous amount of different bits in the drilling machine and the asociated drill bit changes. It probably also depends on what the factory processes most: many different boards or large runs of identical boards.

True, the outline will probably be done after but slots and weird shapes can be done at either time. The CNC machine can do either.

All the CNC machine needs to do is pick up a side cutter (router bit) instead of a drill bit. As I think it was Spehro pointed out, a factroy that does boards by the thousands, even, will probably punch them.