kicad-developers team mailing list archive

[Alex G <mr.nuke.me@xxxxxxxxx>]

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>> computer, and I can email it to anyone interested.
>> (I'm curious just how many people will try to attack my computer now).
> 
> Done that, have fun
> 
Thanks again. It's a pretty handy tool, I must admit.

Ok, so for an M3 washer it yields:
7.3mm pad for 3.1mm hole (tight fit) with 7.6mm courtyard
7.7mm pad for 3.5mm hole (loose fit) with 8.0mm courtyard
Interpolating, I guess it should be
7.4mm pad for 3.2mm hole with 7.7mm courtyard

Courtyard is defined as:
> The area that provides an electrical and mechanical clearance around the component body and land pattern boundaries.

So I'm assuming this means "don't put any tracks in that zone". I'm not
sure, but I think kicad allows setting pad clearances that are different
than the net values.

While the tool allows for calculating land patterns for screw heads and
washers, there's no option for nuts (no pun intended).

Going back to our DSUB connectors with 3.2 mm mounting holes, I guess
this means a 7.4mm pad with a minimum clearance of 0.15mm.
Lorenzo, I'm expecting a confirmation or a "you got it totally wrong you
idiot!!!" . :-p

Alex


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