refactor

rack/body/base1.scad

@@ -0,0 +1,79 @@
+include <../../common.scad>
+include <../screws.scad>
+
+$fn=64;
+
+module baseFrame() {
+  difference() {
+    cube(size=[200,200,4], center=true);
+    cube(size=[180,180,4], center=true);
+  }
+
+  translate(v=[80,80,0])
+  cube(size=[20,20, 4],center=true);
+
+  translate(v=[-80,80,0])
+  cube(size=[20,20, 4],center=true);
+
+  translate(v=[80,-80,0])
+  cube(size=[20,20, 4],center=true);
+
+  translate(v=[-80,-80,0])
+  cube(size=[20,20, 4],center=true);
+}
+
+module lugBottom() {
+  difference() {
+    cube(size=[9.7,9.7,6], center=true);
+
+    translate(v=[2,2,0])
+    cube(size=[9.1,9.1,5+1], center=true);
+  }
+  
+}
+
+
+module base() {
+
+  difference() {
+    union() {
+      translate(v=[0,0,4/2])
+        baseFrame();
+
+
+      translate(v=[-90,-90,-6/2])
+        lugBottom();
+
+      mirror(v=[1,0,0])
+        translate(v=[-90,-90,-6/2])
+        lugBottom();
+
+      mirror(v=[0,1,0])
+        translate(v=[-90,-90,-6/2])
+        lugBottom();
+
+      mirror(v=[1,1,0])
+        translate(v=[-90,-90,-6/2])
+        lugBottom();
+    }
+
+    union() {
+      translate(v=[80,80,0]) 
+      cylinder(h = 100, r = m3ptr, $fn=32, center=true);
+
+      translate(v=[-80,80,0]) 
+      cylinder(h = 100, r = m3ptr, $fn=32, center=true);
+
+      translate(v=[80,-80,0]) 
+      cylinder(h = 100, r = m3ptr, $fn=32, center=true);
+
+      translate(v=[-80,-80,0]) 
+      cylinder(h = 100, r = m3ptr, $fn=32, center=true);
+      
+    }
+  }
+}
+
+base();
+
+

rack/body/l1.scad

@@ -0,0 +1,37 @@
+
+slack = 0.5;
+m3Diameter = 3.0;
+m3Radius = m3Diameter/2.0;
+m3ptr = m3Radius + slack;
+
+legLength = 200;
+
+
+module baseLeg(legLength) {
+  cube(size=[3, 15, legLength]);
+}
+
+
+module leg() {
+  difference() {
+    baseLeg(legLength);
+
+    union() {
+      for (i = [0:18]) {
+        translate(v=[0,10,(i+1)*10])
+          rotate(a=[0,90,0])
+          cylinder(h = 100, r = m3ptr, $fn=32, center=true);
+      }
+
+      translate(v=[0,10,(0+1)*10])
+          rotate(a=[0,90,0])
+          *cylinder(h = 100, r = m3ptr, $fn=32, center=true);
+
+      translate(v=[0,10,(18+1)*10])
+          rotate(a=[0,90,0])
+          *cylinder(h = 100, r = m3ptr, $fn=32, center=true);
+    }
+  }
+}
+
+leg();

rack/body/legToleranceTest.scad

@@ -0,0 +1,45 @@
+
+slack = 0.5;
+m3Diameter = 3.0;
+m3Radius = m3Diameter/2.0;
+m3ptr = m3Radius + slack;
+
+legLength = 60;
+
+
+module baseLeg(legLength) {
+  difference() {
+    cube(size=[16,16, legLength]);
+
+    translate(v=[4,4,4])
+    cube(size=[16, 16, legLength-2*4]);
+  }
+}
+
+
+module leg(ui) {
+  assert(ui > 0);
+
+  legLength = 20 + (ui-1)*10;
+  
+  difference() {
+    baseLeg(legLength);
+
+    union() {
+      for (i = [0:ui-1]) {
+        translate(v=[0,10,(i+1)*10])
+          rotate(a=[0,90,0])
+          cylinder(h = 100, r = m3ptr, $fn=32, center=true);
+
+        translate(v=[10,0,(i+1)*10])
+          rotate(a=[90,0,0])
+          cylinder(h = 100, r = m3ptr, $fn=32, center=true);
+      }
+
+      translate(v=[10,10,legLength/2])
+      cylinder(h = legLength*2, r = m3ptr, $fn=32, center=true);
+    }
+  }
+}
+
+leg(18);

rack/body/m4Leg.scad

@@ -0,0 +1,158 @@
+include <../../common.scad>
+include <../screws.scad>
+
+
+//slack = 0.5;
+//m3Diameter = 3.0;
+//m3Radius = m3Diameter/2.0;
+//m3ptr = m3Radius + slack;
+
+legWidth = 16;
+legLength = 16;
+legHeight = 60;
+
+legFrontThickness = 6;
+legSupportThickness = 4;
+
+legWingThickness = 4;
+legWingLength = 9;
+
+// 9.5 to account for space for inserting hex nuts at the top
+legWingWidth = 9.5+legSupportThickness;
+
+
+module legWing() {
+  difference() {
+    cube(size=[legWingLength, legWingThickness, legWingWidth]);
+
+    union() {
+      translate(v=[4,0,10])
+        rotate(a=[90,0,0])
+        cylinder(r=m3RadiusSlacked, h=20, center=true);
+
+      translate(v=[14,0,10])
+        rotate(a=[90,0,0])
+        cylinder(r=m3RadiusSlacked, h=20, center=true);
+    }
+  }
+}
+
+module base() {
+    difference() {
+      cube(size=[25,25,legWingThickness]);
+
+      union() {
+      translate(v=[20,20,0])
+        cylinder(r=m3RadiusSlacked, h=100, center=true);
+
+      translate(v=[10,10,0])
+        cylinder(r=m3RadiusSlacked, h=100, center=true);
+
+      translate(v=[20,10,0])
+        cylinder(r=m3RadiusSlacked, h=100, center=true);
+
+      translate(v=[10,20,0])
+        cylinder(r=m3RadiusSlacked, h=100, center=true);
+      }
+      
+    }
+}
+
+module baseLeg(legHeight) {
+  union() {
+    difference() {
+      cube(size=[16,16, legHeight]);
+
+      union() {
+        translate(v=[4,6,0])
+          cube(size=[16, 16, legHeight]);
+
+        // compensate for differences between leg/wing thickness
+        translate(v=[legSupportThickness,legSupportThickness,0])
+          cube(size=[legWidth,legWidth,legSupportThickness+10]);
+
+        translate(v=[legSupportThickness,legSupportThickness,legHeight-legWingWidth])
+          cube(size=[legWidth,legWidth,legSupportThickness+10]);
+
+      }
+    }
+
+    translate(v=[16,0,0])
+      legWing();
+
+
+    translate(v=[16,0,legHeight])
+      mirror(v=[0,0,1]) {
+      legWing();
+    }
+
+    mirror(v=[1,-1,0]) {
+      translate(v=[16,0,0])
+        legWing();
+
+
+      translate(v=[16,0,legHeight])
+        mirror(v=[0,0,1]) {
+        legWing();
+      }
+    }
+
+  }
+
+  base();
+
+  translate(v=[0,0,legHeight-legWingThickness])
+    base();
+}
+
+*baseLeg(180);
+
+module leg(ui) {
+  assert(ui > 0);
+
+  legLength = 20 + (ui-1)*10;
+  
+  difference() {
+    baseLeg(legLength);
+
+    union() {
+        
+      intersection() {
+        union() {
+          for (i = [1:ui-2]) {
+            translate(v=[0,10,(i+1)*10])
+              rotate(a=[0,90,0])
+              *cylinder(h = 100, r = m3ptr, $fn=32, center=true);
+
+            translate(v=[10,3,(i+1)*10])
+              rotate(a=[90,-10,0])
+              m4HexNutPocketNegative();
+          }
+        }      
+        translate(v=[-1,-1,legWingWidth])
+          cube(size=[1000,1000,legLength-2*legWingWidth]);
+      }
+
+      translate(v=[0,10,10])
+        rotate(a=[0,90,0])
+        cylinder(h = 100, r = m3ptr, $fn=32, center=true);
+
+      translate(v=[0,10,ui*10])
+        rotate(a=[0,90,0])
+        cylinder(h = 100, r = m3ptr, $fn=32, center=true);
+
+
+      translate(v=[10,0,10])
+        rotate(a=[90,0,0])
+        cylinder(h = 100, r = m3ptr, $fn=32, center=true);
+
+      translate(v=[10,0,ui*10])
+        rotate(a=[90,0,0])
+        cylinder(h = 100, r = m3ptr, $fn=32, center=true);
+    }
+  }
+}
+
+
+//mirror(v=[1,0,0])
+leg(20);

rack/body/side/side.scad

@@ -0,0 +1,88 @@
+include <../../../misc/magnet.scad>
+include <../../../math.scad>
+$fn=64;
+
+_height = 210;
+_depth = 200;
+
+_thickness = 5;
+
+holeOffset = 10;
+
+module _base() {
+    difference() {
+        cube(size = [_height, _depth, _thickness], center=true);
+        union() {
+            translate(v = [0, 0, 20])
+                minkowski() {
+                    sphere(r = 20);
+                    cube(size = [_height - 34, _depth - 34, 1], center = true);
+
+                }
+            // handles
+            handleLength = 80;
+            translate(v=[0, _depth/2, _thickness+5.5])
+                minkowski() {
+                    sphere(r=10);
+                    cube(size=[handleLength, 10, 1], center=true);
+                }
+            translate(v=[0, -_depth/2, _thickness+5.5])
+                minkowski() {
+                    sphere(r=10);
+                    cube(size=[handleLength, 10, 1], center=true);
+                }
+        }
+    }
+}
+
+module magnetMount(h) {
+    slack = 0.2;
+    difference() {
+        cylinder(h = h, r=magnetR*2);
+        translate(v=[0,0,h-magnetH])
+        cylinder(h = magnetH, r = magnetR+slack);
+    }
+}
+
+
+module side() {
+    magnetMountOffsetX = 95;
+    magnetMountOffsetY = 90;
+    difference() {
+        union() {
+            // align _base to positive z plan
+            translate(v = [0, 0, _thickness / 2])
+                _base();
+
+            // magnet mounts (no holes)
+            for (i=mirror4XY(midpoint=[0,0,0], offsetX=magnetMountOffsetX, offsetY=magnetMountOffsetY)) {
+                translate(v=i)
+                    cylinder(h=_thickness, r=2*magnetR);
+            }
+        }
+
+        // magnet mount holes
+        for (i=mirror4XY(midpoint=[0,0,_thickness-magnetH], offsetX=magnetMountOffsetX, offsetY=magnetMountOffsetY)) {
+            translate(v=i)
+                cylinder(h=magnetH, r=magnetR);
+        }
+    }
+}
+
+
+difference() {
+    side();
+
+    union() {
+        for (i=[0:7]) {
+            translate(v=[i*15 - 52.5,0,0])
+            minkowski() {
+                cube(size = [2, 100, 10], center = true);
+                sphere(r=2);
+            }
+        }
+
+    }
+}
+
+

rack/body/top1.scad

@@ -0,0 +1,97 @@
+include <../../common.scad>
+include <../../math.scad>
+include <../screws.scad>
+
+$fn=64;
+
+_height = 8;
+_width = 210;
+_depth = 200;
+
+
+module _bodySilBase(width, depth, height, roundedPartHeight) {
+  hull() {
+    cube(size = [width, depth, height - roundedPartHeight]);
+    minkowski() {
+      translate(v = [roundedPartHeight, 0, height - roundedPartHeight])
+        cube(size = [width-2*roundedPartHeight, depth, eps]);
+
+      rotate(a = [90, 0, 0])
+        cylinder(r = roundedPartHeight, h = eps);
+    }
+  }
+}
+
+module _bodySil(width, depth, height, roundedPartHeight, wallThickness, topThickness) {
+  cornerSquareDim = 30;
+
+  difference() {
+    _bodySilBase(width, depth, height, roundedPartHeight);
+
+    union() {
+      translate(v = [wallThickness, cornerSquareDim, - topThickness])
+        _bodySilBase(width - 2 * wallThickness, depth - 2 * cornerSquareDim, height, roundedPartHeight);
+
+      translate(v=[cornerSquareDim, wallThickness, -topThickness])
+        cube(size=[width-2*cornerSquareDim, depth-2*wallThickness, height]);
+    }
+  }
+}
+
+// Negative and centered on xy. Aligned with z=0 downwards
+module _lugAndMagnet() {
+  slack = 0.3;
+  vSlack = 0.1;
+  // lug
+  translate(v=[0,0,-2.5])
+  cube(size=[10+slack, 10+slack, 5+vSlack], center=true);
+
+  // hole for magnet, no tolerance on
+  translate(v=[0,0,-(5+vSlack+1.7)])
+  cylinder(d=6+slack, h=1.7+vSlack);
+}
+
+module baseBody() {
+  difference() {
+    _bodySil(_width, _depth, _height, 4, 5, 2);
+
+    _mid = [_width / 2, _depth / 2, _height];
+
+    union() {
+
+      for (i = mirror4XY(midpoint = _mid, offsetX = (_width / 2) - 15, offsetY = (_depth / 2) - 10)) {
+        translate(v = i)
+          _lugAndMagnet();
+      }
+
+      screwHolePositions = concat(
+      mirror4XY(midpoint = _mid, offsetX = (_width / 2) - 25, offsetY = (_depth / 2) - 20),
+      mirror4XY(midpoint = _mid, offsetX = (_width / 2) - 15, offsetY = (_depth / 2) - 20),
+      mirror4XY(midpoint = _mid, offsetX = (_width / 2) - 25, offsetY = (_depth / 2) - 10)
+      );
+
+      for (i = screwHolePositions) {
+        translate(v = i) {
+          cylinder(r = m3RadiusSlacked, h = inf, center = true);
+
+        }
+      }
+
+    }
+  }
+}
+
+
+difference() {
+  baseBody();
+
+  union() {
+    minkowski() {
+      translate(v = [(_width - 130) / 2, (_depth - 150) / 2, - inf / 2])
+        cube(size = [130, 150, inf]);
+
+      cylinder(r = 5);
+    }
+  }
+}
+