stem (male) cross, arm width: ... (1mm?)
slot (female) cross, arm width: ... (1.1mm?)
stem (male) cross, width: ... (4mm?)
slot (female) cross, width: ... (4.1mm?)
stem (male) cross height: ... (~5mm?)
What I read in the Wiki is not entirely clear, for example:
What is correct? I need exact specification, so that the male cross fits the female cross perfectly, and doesn't sit too tight or too loose.Cherry's MX keycap specifications give the keycap slot dimensions as a cross 4.1+0.05 mm wide, with arms 1.17±0.02 mm wide[1] (this would make them 1.465 mm long). There are no known specifications for the switch stem. Signature Plastics gives the dimensions (presumably of the keycap) as a cross 0.159ʺ (4.04 mm) wide, with arms 0.047ʺ (1.19 mm) wide.