There's no electrical reason to wiggle wires around at 45 degrees,
No, but there can be various kinds of over-etch issues in corners that sharp corners make worse.
Technically, it just add parasitics.
Depends. 2 45 degree bends is a better approximation of a smooth arc than a 90 degree sharp corner.
Yes, arcs are even better electrically and better for physical manufacturing. But they are annoying to nudge around. Note that the author of this article suggests saving the "melting" for the very end of the process, because making things all smooth and melty makes it harder to edit the board. It's a bit niche. And as a result, the software at both board fabs and for engineers deals a bit worse from CAD standpoint. And in turn, even worse from a designer point of view.
I spend a bit of time trying to minimize angles (e.g. if I can make a 30 degree turn further away going to a pad instead of a 45 degree one, that's nice-- straighter routing), spreading traces more, and teardropping.
Comments
No, but there can be various kinds of over-etch issues in corners that sharp corners make worse.
Depends. 2 45 degree bends is a better approximation of a smooth arc than a 90 degree sharp corner.
Yes, arcs are even better electrically and better for physical manufacturing. But they are annoying to nudge around. Note that the author of this article suggests saving the "melting" for the very end of the process, because making things all smooth and melty makes it harder to edit the board. It's a bit niche. And as a result, the software at both board fabs and for engineers deals a bit worse from CAD standpoint. And in turn, even worse from a designer point of view.
I spend a bit of time trying to minimize angles (e.g. if I can make a 30 degree turn further away going to a pad instead of a 45 degree one, that's nice-- straighter routing), spreading traces more, and teardropping.