ksafe-base: convexity

[reprap-play.git] / ksafe-base.scad

diff --git a/ksafe-base.scad b/ksafe-base.scad
index cc03267e1e5db7adef35fc12682619b3f58eb661..248119ca0199a0b012f435fb766df96d9666dfd4 100644 (file)
--- a/ksafe-base.scad
+++ b/ksafe-base.scad
@@ -1,16 +1,26 @@
 // -*- C -*-
 
-// xxx
+// xxx from actual ksafe
 bolt_above = 4;
 wall_thick = 4;
 bolthole_height = 4;
 bolthole_width = 10;
-base_thick = 4;
+main_sz = 300;
+cnr_rad = 10;
 lidinner_thick_allow = 20;
+
+// other parameters
+web_thick = 4;
+web_height = 20; // excluding wall and base thick
+bolthole_rhs = 20;
+bolthole_lhs = 20;
+boltreinf_thick = 6;
+anchor_wall_space = 45;
+base_thick = 4;
 space = 25;
 anchor_thick = 4;
 anchor_rad = 4;
-bevel = 15;
+bevel = 5;
 
 // ----- calculated -----
 
@@ -33,6 +43,13 @@ module upp_app_Vars(t_bevel){
   $xppJ = $xppE + wall_thick * [ 1, tan(22.5) ];
   $xppI = $xppF + base_thick * [ tan(22.5), 1 ];
 
+  // must pass a_bevel for t_bevel for these to be valid
+  $gppP = gppA + [0,-1] * lidinner_thick_allow;
+  $gppQ = $gppP + [1,-1] * web_height;
+  $gppR = $xppJ + [ 1, tan(22.5) ] * web_height;
+  $gppS = $xppI + [ tan(22.5), 1 ] * web_height;
+  $gppT = [ $gppQ[0], $xppE[1] ];
+
   children();
 }
 
@@ -43,7 +60,8 @@ module upp_app_Profile(){
            $xppF,
            $xppF + [1,0],
            $xppI + [1,0],
-           $xppJ ]);
+           $xppJ ],
+         convexity=10);
 }
 
 
@@ -65,7 +83,8 @@ module AnchorProfile(){
        polygon([ $xppE,
                  $xppF,
                  $xppF + [0,1],
-                 $xppE + [1,0] ]);
+                 $xppE + [1,0] ],
+         convexity=10);
        translate(appM) circle(r= anchor_b);
       }
       translate(appM) circle(r= anchor_rad);
@@ -73,10 +92,57 @@ module AnchorProfile(){
   }
 }
 
-module Demo(){
+module AnchorWallProfile(){
+  UsualProfile();
+  NearAnchorProfile();
+  hull(){
+    for (bev = [bevel, a_bevel]) {
+      upp_app_Vars(bev) {
+       polygon([ $xppE,
+                 $xppF,
+                 $xppI,
+                 $xppJ ],
+         convexity=10);
+      }
+    }
+  }
+}
+
+module WebProfile(){
+  upp_app_Vars(a_bevel){
+    if ($gppR[1] <= $gppP[1]) {
+      polygon([ $gppP,
+               $xppE,
+               $gppT,
+               $gppQ ]);
+      polygon([ $gppP,
+               $xppE,
+               $xppF,
+               $gppS,
+               $gppR ],
+         convexity=10);
+    } else {
+      polygon([ $gppP,
+               $xppE,
+               $xppF,
+               $gppS,
+               $gppP + web_height * [1,0] ],
+         convexity=10);
+    }
+    polygon([ $gppS,
+             $xppF,
+             $xppF + [1,0],
+             $gppS + [1,0] ],
+         convexity=10);
+  }
+}
+
+module DemoProfiles(){
+  translate([0,0,-2]) color("yellow") AnchorWallProfile();
   color("red") AnchorProfile();
   translate([0,0,2]) color("black") NearAnchorProfile();
-  color("blue") UsualProfile();
+  translate([0,0,4]) color("blue") UsualProfile();
+  translate([0,0,-4]) color("pink") WebProfile();
 }
 
-Demo();
+DemoProfiles();