belt-slot-cut-jig: onejig in progress

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

diff --git a/belt-slot-cut-jig.scad b/belt-slot-cut-jig.scad
index 3e39d8dbec7ef36684c3b53981bc987407f984cc..4ff14f1f66864431d1b166fec38884482d289e50 100644 (file)
--- a/belt-slot-cut-jig.scad
+++ b/belt-slot-cut-jig.scad
@@ -2,8 +2,19 @@
 
 crewpunch_slop = 0.3;
 
-holder_min_wall = 1;
-holder_front_wall = 5;
+holder_min_wall = 2;
+
+holder_attach_xsz = 5;
+holder_ctie_width = 4.0 + 0.5;
+holder_ctie_thick = 2.0 + 0.5;
+holder_attach_walls = 3;
+holder_attach_roof = 2.5;
+
+jig_interval = 25;
+strap_width = 25;
+edgewall_width = 3;
+
+main_slop = 0.5;
 
 // from careful measurement
 
@@ -15,20 +26,29 @@ crewpunch_shape =
    [ 14, [2.1, 6.8], [2.6, 13.0] ],
    [ 16, [2.4, 6.9], [2.7, 13.2] ]];
 
+crewpunch_shaft_max_y = 7.5;
+
 crewpunch_systematic_size_error = +0.36;
 
 crewpunch_min_y = 4.7 - crewpunch_systematic_size_error;
 
-// computed
-
 crewpunch_smallest_shape = crewpunch_shape[0];
 crewpunch_biggest_shape = crewpunch_shape[len(crewpunch_shape)-1];
 
+// computed
+
+attach_ysz = holder_attach_walls*2 + holder_ctie_width;
+holder_front_wall = 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[0][0] + crewpunch_biggest_shape[0][1] +
+holder_xsz = crewpunch_biggest_shape[2][0] + crewpunch_biggest_shape[2][1] +
   holder_min_wall*2;
-holder_ysz = crewpunch_biggest_shape[1][0] + crewpunch_biggest_shape[1][1] +
-  holder_min_wall + holder_front_wall;
+crewpunch_biggest_y =
+  crewpunch_biggest_shape[1][0] + crewpunch_biggest_shape[1][1];
+holder_ysz = crewpunch_biggest_y + holder_min_wall + holder_front_wall;
+
+attach_offset = holder_attach_xsz + holder_min_wall;
 
 // objects
 
@@ -50,12 +70,47 @@ module CrewPunch(){
   }
 }
 
-module PunchHolder(){
+module PunchHolder(cutouts=true){
+  translate([-holder_xsz/2,
+            -holder_ysz + holder_min_wall + crewpunch_biggest_y/2,
+            0]){
+    difference(){
+      translate([0,attach_offset,0])
+       cube([holder_xsz, holder_ysz - attach_offset, holder_block_zsz]);
+      if (cutouts)
+       translate([crewpunch_biggest_shape[2][1] + holder_min_wall,
+                  crewpunch_biggest_shape[1][0] + holder_front_wall,
+                  -crewpunch_smallest_shape[0]])
+         CrewPunch();
+    }
+    difference(){
+      translate([holder_xsz/2 - holder_attach_xsz/2, 0, 0])
+       cube([holder_attach_xsz,
+             attach_ysz,
+             holder_block_zsz + holder_ctie_thick + holder_attach_roof + 1]);
+      if (cutouts)
+       translate([-30, holder_attach_walls, holder_block_zsz + 0.1])
+         cube([60, holder_ctie_width, holder_ctie_thick]);
+    }
+  }
+}
+
+module OneJig(){
   difference(){
-    cube([holder_xsz, holder_ysz, holder_block_zsz]);
-    
+    translate([-(jig_interval/2 + 1),
+              -(strap_width/2 + edgewall_width) - attach_offset,
+              0])
+      cube([jig_interval + 2,
+           strap_width + edgewall_width*2 + attach_offset,
+           holder_ysz]);
+    minkowski(){
+      cube([main_slop*2, main_slop*2, 50], center=true);
+      PunchHolder(false);
+    }
   }
 }
        
 //CrewPunch();
-PunchHolder();
+//PunchHolder();
+//PunchHolder(false);
+OneJig();