Is there a way to disable all fillets, yet retain minimal width constraints?
I.e. essentially disabling filleting of corners entirely, not just inner corners, but all corners, etc.
Fillets can be disabled in the zone properties.
Films are exposed based on Gerber data by a light source. This light source has a finite diameter, so technically outer corners will always be rounded. Inner diameters can be sharp.
Hmm, perhaps I’m doing something wrong here.
(blue circled corners are the ones I’m talking about)
I’ve set corner smoothing to “None”, but the inner corners around items such as pads, vias, etc. are still rounded like this. This is really quite annoying looking when it’s within more denser arrays of pads, like on header connectors, etc.
I was kinda expecting something like this (the pink areas are drawn with GIMP):
So, I’m assuming this isn’t possible?
AFAIK you are assuming right.
Zones are drawn by tracks with minimum track widths. So if your minimum track width is 10 mil as an example, track ends are rounded with a diameter of 10 mil. Think a pencil’s tip diameter.
Take a piece of paper and a relatively fat pen and try to achieve what you want to see…
'Nough said… Well, I understand, but functionally it’s safer to have no sharp corners in copper.
There is no electrical benefit to sharp corners and they do increase the risk of tin whisker shorts forming with lead free solder.
Alright, so it’s basically down to some experimentation, etc.
I though there might be an option which I just couldn’t find, etc.
When it comes to the scripting console, I’ve never used that before, but I’m quite well versed in Python, so I’ll see if that’ll get me closer to what I’m looking for.
Thanks for your help for now!
Nowadays films, or directly the resist, is exposed by laser in raster scan. The spotsize is in the order of 10 micrometer. There is not much rounding due to exposing.
The Shape: Corner smoothing and Shape: Fillet radius options are for the external boundary of the zone. They do not affect holes knocked out of the zone.
The smoothing of knocked out areas is a function of Electrical Properties: Minimum width.
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