topeak-mtx-tortec-expeditionrack-adapter: fix fam y

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

diff --git a/topeak-mtx-tortec-expeditionrack-adapter.scad b/topeak-mtx-tortec-expeditionrack-adapter.scad
index 54a83a464463943d2eb3e5d70f6b405a1eea9f1a..6e88064f2e0f1d952ca64caa0247e00ac82c2f91 100644 (file)
--- a/topeak-mtx-tortec-expeditionrack-adapter.scad
+++ b/topeak-mtx-tortec-expeditionrack-adapter.scad
@@ -226,8 +226,6 @@ module Principal(){
   ];
 
   $foreaftmaint_rail_z = brk_block_z/2 + $foreaftmaint_dz;
-  $foreaftmaint_rail_y = $rack_rail_y
-    + $foreaftmaint_rail_z * rack_shear_ratio;
 
   difference(){
     union(){
@@ -274,7 +272,7 @@ module Principal(){
              rectfromto([ -$foreaftmaint_rail_z, adapt_main_top_y ],
                         [ 0, block_y_min]);
              hull(){
-               ybot = $foreaftmaint_rail_y - rack_rail_dia/2 + grasp_large_r
+               ybot = $rack_rail_y - rack_rail_dia/2 + grasp_large_r
                  - fit_slope_len * 0.5;
                for (y = [
                          ybot,
@@ -309,7 +307,7 @@ module Principal(){
     RackShear() AsForeAftMaint(){
       // Distance from bolt hole, in backwards direction
       cr = rack_rail_dia/2 + foreaftmaint_r_slop;
-      translate([ 0, $foreaftmaint_rail_y, $foreaftmaint_rail_z ])
+      translate([ 0, $rack_rail_y, $foreaftmaint_rail_z ])
        linextr_x_yz(+rack_rail_x,
                     -rack_rail_x) {
        hull(){