Quote Originally Posted by ecat View Post
Time between posts, 3 minutes.
Duration of video, 15 minutes.
No need to spend 15 mins watching a video which just shows something that can be calculated in well under 3 mins.

Quote Originally Posted by ecat View Post
Conclusion of video: A 50% reduction in the resistance of a 1oz copper track, see video for dimensions, is easily achieved.

Is this good enough for m.marino's application? I have no idea.
He can only find 1oz, but needs 2oz which implies the resistance needs to be halved. Since this is for a power supply space is not likely to be an issue, so doubling the trace width is the easiest option.

I should mention that in a demanding application where the current fluctuates a lot it's not sensible to add copper wire to the track since it expands at a different rate with changes in temperature compared to the solder, so it can cause cracks over time. A better way would be to solder a thick jumper wire. Wire is cheaper than solder...