knifeblock: peg

[reprap-play.git] / knifeblock.scad

diff --git a/knifeblock.scad b/knifeblock.scad
index ef7345c35b0e2b5a9faeaf536af68d7f7e4c0968..6d7e96a5a1a355607cccd6cfeda4465013407317 100644 (file)
--- a/knifeblock.scad
+++ b/knifeblock.scad
@@ -36,6 +36,14 @@ covertopwing = 15;
 covertopwingbase = 20;
 coveredge = 3;
 
+pegstem = 3.5;
+peghead = 10;
+pegstemheight = 2;
+pegheight = 9;
+peglen = 12;
+
+pegslop = 0.5;
+
 // computed
 side = minsidein + screwcsinkdia + minsideout;
 totaldepth = front + maxhandledepth + back;
@@ -121,9 +129,9 @@ module CoverTemplate(){
 }
 
 module CoverSide(xpos, len){
-  translate([xpos, 0 ,0])
-  rotate([90,0,90])
-    linear_extrude(height=coverside)
+  translate([xpos, 0 ,0]) {
+    rotate([90,0,90])
+      linear_extrude(height=coverside)
       polygon([[0,                      0],
               [0,                      totaldepth],
               [covertopwing,           totaldepth],
@@ -132,21 +140,53 @@ module CoverSide(xpos, len){
               [len - covertopwing,     totaldepth],
               [len,                    totaldepth],
               [len,                    0]]);
-//  }
+  }
+}
+
+module PegTemplate(){
+  for (mx=[0,1]) for (my=[0,1]) {
+      mirror([mx,0,0]) mirror([0,my,0])
+       polygon([[-0.1,      -0.1],
+                [pegstem/2, -0.1],
+                [pegstem/2, pegstemheight/2],
+                [peghead/2, pegheight    /2],
+                [-0.1,      pegheight    /2]]);
+    }
+}
+
+module Peg(){
+  echo("peg angle slope (must be <1)",
+       (peghead-pegstem)/(pegheight-pegstemheight));
+  d = pegslop;
+  rotate([90,0,0]) {
+    linear_extrude(height=peglen) {
+      intersection(){
+       translate([-d,-d,0]) PegTemplate();
+       translate([-d,+d,0]) PegTemplate();
+       translate([+d,+d,0]) PegTemplate();
+       translate([+d,-d,0]) PegTemplate();
+      }
+    }
+  }
 }
 
 module Cover(){
   CoverTemplate();
   CoverSide(minx,           covershortlen);
-  CoverSide(maxx-coverside, coverlonglen);
+  mirror([1,0,0]) CoverSide(-maxx, coverlonglen);
+}
+
+module CoverAligned(){
+  translate([0,-front,-height])
+    rotate([-90,0,0])
+    Cover();
 }
 
 module Demo(){ ////toplevel
   %Block();
   DoKnives();
-  translate([0,0,-height])
-    rotate([90,0,0])
-      Cover();
+  color([0,0,1]) CoverAligned();
 }
 
 Demo();
+//Cover();