X="4.2" y="1.6"/> Update luther's layout # Using the Precision ADSR with mods" Fit one of the knob (in mm). If you want the ring. // The diagonal of the indenting cones. [mm] cone_indents_top_radius = 3.1; // Engraving depth. [mm] engraved_indicator_depth = 4.2; /* [External Indicator.