fairphone-case: rework hingescrew parameters: add a comment

Signed-off-by: Ian Jackson <ijackson@chiark.greenend.org.uk>

diff --git a/fairphone-case.scad b/fairphone-case.scad
index 392d88d28b4f0887f621c7dd4a18c0d0d160dde0..56c3e4e169d4cea33ed07f0eb819c1345aa3f94b 100644 (file)
--- a/fairphone-case.scad
+++ b/fairphone-case.scad
@@ -80,7 +80,7 @@ hingescrew_shaft_dia = 2.0 + 0.25; // M2 x 12mm machine screw
 hingescrew_shaft_len = 12;
 hingescrew_nut_thick = 1.93 + 0.20; // incl. washer
 hingescrew_nut_dia = 4.72 + 0.50; // washer, actually
-hingescrew_nut_across = 3.92 + 0.25;
+hingescrew_nut_across = 3.92 + 0.25; // incl. slop around recess slop
 hingescrew_nut_thick_real = 1.93;
 hingescrew_head_th = 1.38 + 0.75;
 hingescrew_head_dia = 3.92;