document some peco part numbers

diff --git a/layout/parts.i4 b/layout/parts.i4
index b2985ef5e03f7971b9bc89cf5c117876517d74c5..6f36f355706820666aa29c8abbc39c4f4ba9ce21 100644 (file)
--- a/layout/parts.i4
+++ b/layout/parts.i4
@@ -67,10 +67,11 @@ dnl OBJNAME-EXCLUDING-CROSS HALF-ANG HALF-LENGTH
  enddef
 ')
 
-def_point_ord(`peco_s', 22.5, 87,  -0.5, 17,    200) # not minr 230 ?
-def_point_ord(`peco_m', 14,  126.5,-1.55,13.21, 315) # not minr 457 ?
-def_point_ord(`peco_l',  8,  160,  -0.4, 13.21, 914)
+def_point_ord(`peco_s', 22.5, 87,  -0.5, 17,    200) #ST-5,6     not minr 230 ?
+def_point_ord(`peco_m', 14,  126.5,-1.55,13.21, 315) #SL-395,396 not minr 457 ?
+def_point_ord(`peco_l',  8,  160,  -0.4, 13.21, 914) #SL-388,389
  # catalogue says 123.7 for STRAIGHT-L ?!
+ # SL-<n> and SL-E<n> have the same geometry
 
 def_point_curve(`peco_c',  10, 154.4, 13.8,  3, 156.0, 0.8, 457)
  dnl 163.2-  } dist to markings on paper cribsheet from c