Quoting Kerry Wentworth : > I don't see it, either. But: > > The length of a 2 position unit is 20.5mm. Each position is 9.5mm. A > position width is 1 slot width + 1 wall width. > So: 2 slots + 2 walls =3D 19.0mm and 2 slots + 3 walls =3D 20.5mm. > Therefor, wall width =3D 1.5mm and slot width =3D 8.0mm. > > Kerry > Hmmm... I like your approach, as long as we assume the outer walls are =20 the same width as the inner walls. I'd even assume that's true from =20 the pic (though if I engineered this, I might've made the outer walls =20 half the width of the inner walls so that they could be stacked side =20 by side, but that's clouding the discussion so forget I said that). BTW, the measurements aren't actually correct. For the 2-position =20 unit, 9.5 + 5.6 + 5.6 =3D 20.7mm total width, not 20.5 as specified. =20 But the 0.2mm discrepancy follows for the 3-position unit, so the math =20 should still be valid. Either way, I've gone ahead and added it to the PCB layout. The =20 widths for spade terminals looks narrow, but 8mm is 0.315 and 0.25" =20 spades exist, so it should be okay. But just in case, the end-users =20 can always wrap wire around the screw. BTW, on a related note, I find it odd that a 30A terminal would have =20 only a 1.2mm-dia pin. Cheers, -Neil. --=20 http://www.piclist.com PIC/SX FAQ & list archive View/change your membership options at http://mailman.mit.edu/mailman/listinfo/piclist .