knifeblock: CoverParts

[reprap-play.git] / knifeblock.scad

diff --git a/knifeblock.scad b/knifeblock.scad
index b0dbd6857fbf69921a6a1154b66db13627515325..d083156a76ec722fcf3b5fb992e8898417dd92f0 100644 (file)
--- a/knifeblock.scad
+++ b/knifeblock.scad
@@ -11,8 +11,8 @@ maxhandledepth = 45;
 
 templatescale = 27.2 / 19.6;
 
-coverlonglen = 130; // xxx
-covershortlen = 80; // xxx
+coverlonglen = 120; // xxx
+covershortlen = 70; // xxx
 
 // other tuneables
 front = 5;
@@ -36,6 +36,21 @@ covertopwing = 15;
 covertopwingbase = 20;
 coveredge = 3;
 
+pegstem = 3.5;
+peghead = 10;
+pegstemheight = 2;
+pegheight = 9;
+peglen = 12;
+
+recessblockwidth = peghead + pegstem*3;
+recessblockheight = peglen + pegstem*1.5;
+
+pegsloph = 0.5;
+pegslopv = 0.5;
+pegslopl = 0.5;
+
+pegdepthproportion = 0.80;
+
 // computed
 side = minsidein + screwcsinkdia + minsideout;
 totaldepth = front + maxhandledepth + back;
@@ -46,6 +61,8 @@ maxkx = locations[nknives-1] + widths[nknives-1]/2;
 minx = minkx - side;
 maxx = maxkx + side;
 
+pegrecess = pegdepthproportion*totaldepth - 0.5*peglen;
+
 module ImportTemplate(w,k,t) {
   fn = str("knifeblock-knives-t",k,t,".dxf");
   echo(fn);
@@ -85,6 +102,30 @@ module ScrewHole(){
     cylinder(r=screwcsinkdia/2 / (sqrt(3)/2), h=100, $fn=6);
 }
 
+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 AtSides(){
+  translate([minx,0,0])                 child(0);
+  translate([maxx,0,0]) mirror([1,0,0]) child(1);
+}
+
+module BlockPegSlot(){
+  translate([recessblockwidth/2, pegrecess - 0.5*peglen, -height]){
+    rotate([-90,0,0]) linear_extrude(height=totaldepth){
+      PegTemplate();
+    }
+  }
+}
+
 module Block(){
   sidemidx = minsideout + screwcsinkdia/2;
 
@@ -103,6 +144,7 @@ module Block(){
     for (yshift=[-1,1])
       translate([0, yshift * frontbackslop, 0])
        DoKnives();
+    AtSides() { BlockPegSlot(); BlockPegSlot(); }
   }
 }
 
@@ -120,10 +162,10 @@ module CoverTemplate(){
             [minx, covershortlen]]);
 }
 
-module CoverSide(xpos, len){
-  translate([xpos, 0 ,0])
-  rotate([90,0,90])
-    linear_extrude(height=coverside)
+module CoverSide(len){
+  translate([0, 0 ,0]) {
+    rotate([90,0,90])
+      linear_extrude(height=coverside)
       polygon([[0,                      0],
               [0,                      totaldepth],
               [covertopwing,           totaldepth],
@@ -132,21 +174,71 @@ module CoverSide(xpos, len){
               [len - covertopwing,     totaldepth],
               [len,                    totaldepth],
               [len,                    0]]);
-//  }
+    cube([recessblockwidth, recessblockheight, totaldepth]);
+  }
+}
+
+module Peg(){
+  echo("peg angle slope (must be <1)",
+       (peghead-pegstem)/(pegheight-pegstemheight));
+  dx = pegsloph;
+  dy = pegslopv;
+  rotate([90,0,0]) {
+    linear_extrude(height=peglen-pegslopl) {
+      intersection(){
+       translate([-dx,-dy,0]) PegTemplate();
+       translate([-dx,+dy,0]) PegTemplate();
+       translate([+dx,+dy,0]) PegTemplate();
+       translate([+dx,-dy,0]) PegTemplate();
+      }
+    }
+  }
+}
+
+module CoverPegSlot(coverlen){
+  translate([recessblockwidth/2, 0, -1]){
+    linear_extrude(height= 1 + pegrecess + 0.5*peglen){
+      PegTemplate();
+    }
+  }
 }
 
 module Cover(){
-  CoverTemplate();
-  CoverSide(minx,           covershortlen);
-  CoverSide(maxx-coverside, coverlonglen);
+  difference(){
+    union(){
+      CoverTemplate();
+      AtSides() { CoverSide(covershortlen); CoverSide(coverlonglen); }
+    }
+    AtSides() { CoverPegSlot(); CoverPegSlot(); }
+  }
+}
+
+module CoverAligned(){
+  translate([0,-front,-height])
+    rotate([-90,0,0])
+    Cover();
+}
+
+module DemoPeg(){
+  translate([recessblockwidth/2, pegrecess, -height])
+    Peg();
 }
 
 module Demo(){ ////toplevel
   %Block();
   DoKnives();
-  translate([0,0,-height])
-    rotate([90,0,0])
-      Cover();
+  color([0,0,1]) CoverAligned();
+  color([1,0,0]) AtSides() { DemoPeg(); DemoPeg(); }
+}
+
+module CoverParts(){ ////toplevel
+  Cover();
+  translate([0, coverlonglen, pegheight/2]) {
+    Peg();
+    translate([-peghead-3, 0,0]) Peg();
+  }
 }
 
 Demo();
+//Cover();
+//Peg();