poster-tube-lid: measurements

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

diff --git a/poster-tube-lid.scad b/poster-tube-lid.scad
index d31ae1f2332b377f60c24124854795f70addb6be..09aa9b337edf79d0bf84508994f553e68f04d0bb 100644 (file)
--- a/poster-tube-lid.scad
+++ b/poster-tube-lid.scad
@@ -95,6 +95,7 @@ sm_closure_cnr = 3.0;
 
 wm_thick = 5;
 wm_screw_dia = 4.5; // Timco wood screw 40mm, use brown plug
+wm_screwdriver_dia = 6.3 + 1.5;
 wm_screw_around = 5.0;
 wm_screw_slot = 3.5;
 wm_screw_head = 8.0;
@@ -105,10 +106,10 @@ wmb_screw_around_x = 4;
 wmb_screw_around_z = 6;
 wmb_screw_depth_min = 10;
 web_screw_len = 15 + 1;
-wmb_nut_across = 8; // XXX
+wmb_nut_across = 7.82 + 0.35;
 wmb_nut_around_min = 2;
 wmb_nut_behind_min = 5;
-wmb_nut_th = 4; // XXX
+wmb_nut_th = 3.84 + 0.75;
 wmb_mount_wall = 4.5;
 wmb_mount_gap_xy = 0.5;
 wmb_mount_gap_z = 0.5;
@@ -183,7 +184,6 @@ sm_inner_rad = (sm_inner_circum + sm_bolt_tighten_allow/2) / TAU;
 sm_outer_rad = sm_inner_rad + sm_main_thick;
 
 wm_main_width = sm_main_width;
-wm_screwdriver_dia = wm_screw_head;
 wm_y_min = sqrt( pow(sm_inner_rad, 2) -
                 pow(sm_inner_rad - (wm_thick - sm_main_thick), 2) );
 wm_y_screw = wm_y_min + wm_screw_around + wm_screw_dia/2;