belt-slot-cut-jig: remove a spurious +

[reprap-play.git] / belt-slot-cut-jig.scad

diff --git a/belt-slot-cut-jig.scad b/belt-slot-cut-jig.scad
index 5af3785147435b848ce6ab6413fa241bc0e7cee6..8b437f56b4fcf14ab08c0ea691d39c69da3d8efb 100644 (file)
--- a/belt-slot-cut-jig.scad
+++ b/belt-slot-cut-jig.scad
@@ -50,27 +50,40 @@ crewpunch_shape =
    [ 26, [3.3, 7.2], [3.5, 13.6] ], 
    ];
 
-crewpunch_shaft_max_y = 7.5;
+crewpunch_shaft_max_y = 3.5;
 
 crewpunch_systematic_size_error = +0.36;
 
-crewpunch_min_y = 4.7 - crewpunch_systematic_size_error;
-
 crewpunch_smallest_shape = crewpunch_shape[0];
 crewpunch_biggest_shape = crewpunch_shape[len(crewpunch_shape)-1];
 
+crewpunch_skew_angle = 3.5; //degrees
+crewpunch_skew_yoff_broken = 0; //mm
+crewpunch_skew_yoff = -1.1; //mm
+
 // computed
 
 attach_ysz = holder_attach_walls*2 + holder_ctie_width;
-holder_front_all = crewpunch_shaft_max_y - crewpunch_biggest_shape[1][1]
-  + attach_ysz;
 
 holder_block_zsz = crewpunch_biggest_shape[0] - crewpunch_smallest_shape[0];
 holder_xsz = crewpunch_biggest_shape[2][0] + crewpunch_biggest_shape[2][1] +
   holder_min_wall*2;
+
+holder_skewangle_yextra = holder_xsz/2 * sin(abs(crewpunch_skew_angle));
+
+holder_max_y = crewpunch_biggest_shape[1][1] + holder_min_wall
+  + crewpunch_systematic_size_error + holder_skewangle_yextra;
+
+holder_block_min_y = crewpunch_biggest_shape[1][0] - holder_attach_near_wall +
+  - crewpunch_systematic_size_error - holder_skewangle_yextra;
+
+holder_all_min_y = holder_block_min_y - attach_ysz;
+holder_front_all = abs(holder_all_min_y);
+
 crewpunch_biggest_y =
   crewpunch_biggest_shape[1][0] + crewpunch_biggest_shape[1][1];
-holder_ysz = crewpunch_biggest_y + holder_min_wall + holder_front_all;
+holder_ysz = crewpunch_biggest_y + holder_min_wall + holder_front_all
+  + max(0, -crewpunch_skew_yoff_broken);
 
 attach_offset = 0.5 * (holder_front_all - holder_attach_near_wall);
 
@@ -94,7 +107,7 @@ module CrewPunch(){
            mirror([xind?1:0,0,0]) mirror([0,yind?0:1,0]){
              translate([-0.1,-0.1,-0.1])
                cube([0.1 + layer[2][xind] + ourslop,
-                     0.1 + layer[1][yind] + ourslop,
+                     0.1 + layer[1][1-yind] + ourslop,
                      0.2]);
            }
       }
@@ -103,15 +116,20 @@ module CrewPunch(){
 }
 
 module PunchHolder(cutouts=true){
-  translate([-holder_xsz/2,
-            -holder_ysz + holder_min_wall + crewpunch_biggest_y/2,
-            0]){
+  translations=[-holder_xsz/2,
+               -holder_ysz + holder_min_wall + crewpunch_biggest_y/2,
+               0];
+  translate(translations){
     difference(){
       translate([0,attach_offset,0])
        cube([holder_xsz, holder_ysz - attach_offset, holder_block_zsz]);
       if (cutouts)
+       translate([0,-crewpunch_skew_yoff_broken])
+       translate(-translations)
+       rotate([0,0,-crewpunch_skew_angle])
+       translate(translations)
        translate([crewpunch_biggest_shape[2][1] + holder_min_wall,
-                  crewpunch_biggest_shape[1][0] + holder_front_all,
+                  crewpunch_biggest_shape[1][1] + holder_front_all,
                   -crewpunch_smallest_shape[0]])
          CrewPunch();
     }
@@ -203,7 +221,8 @@ module Jig(){
 }
 
 module JigT(){ ////toplevel
-  rotate([180,0,0])
+  translate([0,0,jig_main_zsz])
+    rotate([180,0,0])
     Jig();
 }
 
@@ -211,17 +230,28 @@ module PunchHolderT(){ ////toplevel
   PunchHolder(true);
 }
 
-module Demo(){
+module Demo(){ ////toplevel
   %PunchHolder();
   Jig();
 }
 
+module Kit(){ ////toplevel
+  rotate([0,0,-45]){
+    JigT();
+    translate([(jig_iters-1)*jig_interval/2,
+              -strap_width,
+              0])
+      PunchHolder();
+  }
+}
+
 //CrewPunch();
 //PunchHolder();
 //PunchHolder(false);
 //OneJig();
 //Jig();
-//Demo();
+Demo();
 //JigT();
 //RegistrationProtrusion();
 //PunchHolderT();
+//Kit();