<_whitenotifier-9>
[GlasgowEmbedded/Glasgow] whitequark pushed 3 commits to master [+1/-0/±3] https://git.io/fj3Or
<_whitenotifier-9>
[GlasgowEmbedded/Glasgow] electroniceel 956ab14 - create footprint for 3.5mm mounting hole with courtyard
<_whitenotifier-9>
[GlasgowEmbedded/Glasgow] electroniceel 4289cd5 - revC1: increase mounting hole size from 3.2mm to 3.5mm, add courtyard space around
<_whitenotifier-9>
[GlasgowEmbedded/Glasgow] electroniceel 95e1c26 - revC1: move R5 and R6 out of the mounting hole courtyard
<electronic_eel>
thanks for merging. Let's hope marcan didn't begin with the other layout changes and has a lot of conflicts now
<_whitenotifier-9>
[Glasgow] electroniceel commented on issue #130: Change regulator from MIC5355-S4YMME - https://git.io/fj3OP
<whitequark>
yeah i'm pretty sure we should just use smaller washers
<whitequark>
there's no fixed M3 washer size anyway
<electronic_eel>
the regular ones are iso 7090
<electronic_eel>
or DIN 125 B
<whitequark>
yeah, there's a standard size
<whitequark>
but in practice you can get them in a lot of different sizes
<electronic_eel>
yes, you can of course get different ones
<whitequark>
we may want to add a comment on the layout suggesting this
<electronic_eel>
hmm, don't know if anyone is looking there for this kind of information
<electronic_eel>
maybe better in the regular documentation, though it is a bit sparse for now
<whitequark>
either schematic or layout...
<whitequark>
and probably some other section that indicates where to look. or duplicates that. but duplicated info is hard to keep in sync
<electronic_eel>
yeah, then layout
<electronic_eel>
you go looking there when you do mech cad and want the exact positions of the screw holes and so on
<whitequark>
yep
<electronic_eel>
when thinking about the text to put in the layout, I don't think we should specify a specific washer size, but just warn of possible conflicts with the lvds connector
<whitequark>
we could specify the maximum washer size that doesn't conflict
<electronic_eel>
but if you properly calculate that it depends on the outer diameter of thread of the screw
<whitequark>
sure
<whitequark>
M3
<electronic_eel>
and the diameter of the inner hole of the washer...
<electronic_eel>
self tapping screws have different thread sizes, 2.9mm is common for example
<electronic_eel>
and someone in the us might want to use their unc/unf stuff
<electronic_eel>
marcan: the space for the lvds connector is really tight there
<electronic_eel>
one solution I could think of is to reduce the pin count, like to 42
<electronic_eel>
but although 42 is always the answer, I don't know if they make connectors this size
<marcan>
yeah, the only problem now is that as wq said, C0 is already out there
<marcan>
tbh, I think the current screw clearance is just about okay
<marcan>
there isn't a terribly good reason to use washers wider than the plating on the holes in C0
<marcan>
or even to use washers at all
<whitequark>
yeah
<marcan>
I think we can file this under "nice to have, do it right for revD, do our best for revC"
<electronic_eel>
yes
<electronic_eel>
just be careful when placing the vio leds
<marcan>
yeah, the courtyard you added is going to be great for that
<marcan>
if I can't fit them in they might go on the inner edge
<marcan>
but they're probably OK in the inner corner
<electronic_eel>
yes, inner corner is fine by me - I just feared they don't pass your aesthetics test there ;)
<marcan>
as long as they're symmetric that's fine :-)
<marcan>
dealing with the silkscreen is going to be a PITA though
<marcan>
but I'll work something out
<electronic_eel>
yes, the silkscreen. But I have confidence in you
<marcan>
something something move the RN6 label to the left of the network, do something about C83 from the other side, stuff those 3 refids where RN6 was
<marcan>
maybe
<electronic_eel>
damn, looks like I saw a bug in my changes: the silkscreen label for the mounting holes are visible
<electronic_eel>
I thought I had them disabled
<electronic_eel>
the MK4 label conflicts with C30
<marcan>
I'll fix that up, np
<electronic_eel>
thx
<electronic_eel>
ahh, I was looking at the wrong branch
<electronic_eel>
the one that was checked in is correct
<_whitenotifier-9>
[GlasgowEmbedded/Glasgow] marcan pushed 1 commit to master [+0/-0/±1] https://git.io/fj3nX