--- crowd-funded eco-conscious hardware: https://www.crowdsupply.com/eoma68
On Fri, Dec 22, 2017 at 8:54 AM, Luke Kenneth Casson Leighton lkcl@lkcl.net wrote:
http://hands.com/~lkcl/eoma/a20/275_hdmi/
ok so this is four pictures, i did flood-fill, i'm going to update them incrementally, for example layer 1 in between the 2 points where the flood-fill keepout is too narrow to let it in (the maximum "curve" is something like 11 mil diameter) i've expanded that to let it in. also layer5 the horizontal track doesn't reach all the way over. the layer2 one i don't exactly know what to do, there's no VIA nearby (and i can't fit one either).
this is a pain! i might see if i can set a clearance to GND on individual tracks / connections as opposed to NETs.
ok that worked. just uploading a video here:
turns out that there's a feature i'd not used before, called "conditional rules". you can specify that *if* GND meets HDMI Group, clearance rules shall be different. ordinarily you have to forcibly set the *entire* GND plane to specific clearances (to ALL objects), or the *entire* HDMI group to specific clearances (to ALL objects)... this "conditional" rule does the trick.
richard i go over it in the video but i believe the layer... 5 keepout needs to also be extended under the layer 6 (blue, bottom) tracks leading to the VIAs that jump up to the DC3 connector pads. also i believe that i should be adding some tracks (pink) which, particularly if there is to be a hole in layer 5 underneath, should be around a 5 mil clearance, to match the fact that it's swapping vertical distance for horizontal distance, what do you think?
l.
