poster-tube-lid: BayonetCutout rework to RotateProjectSlice

[reprap-play.git] / poster-tube-lid.scad

diff --git a/poster-tube-lid.scad b/poster-tube-lid.scad
index c96c86b91d5b389f4dd452055b397858e8f3ec0c..47e6a848f755aca31d5984fc449157dbbf6e40dd 100644 (file)
--- a/poster-tube-lid.scad
+++ b/poster-tube-lid.scad
@@ -10,25 +10,83 @@ rivet_thick = 1.67;
 rivet_width = 4.15 + 1.0;
 rivet_tall = 5.51 + 0.49;
 
-over_rivet = 0.5;
+over_rivet_wall = 0.5;
+side_rivet_gap = 1.5;
 
 bayo_interf = 0.75;
 bayo_behind = 3.5;
+bayo_interf_width = 2.0;
+bayo_interf_slope = 0.75;
 
 seal_thick = 0.1;
-seal_pocket = 2.0;
+seal_recess = [ 2.0, 2.0 ]; // recess depth, recess height
 
 side_taper = 1.0;
 
+bayo_above_gap = 1.0;
+
+bayo_entry = bayo_behind/3;
+
+bayo_slice_size = 1;
+
 // calculated
 
-side_height = rivet_posn + bayo_behind;
-side_thick = rivet_tall + over_rivet;
+bayo_entry_x = bayo_entry;
+bayo_entry_z = bayo_entry;
+bayo_inramp_x = bayo_entry;
+bayo_inramp_z = bayo_entry;
+
+side_height = rivet_posn + bayo_behind + rivet_thick/2;
+side_thick = rivet_tall + over_rivet_wall;
 
 top_z = top_thick + seal_thick;
 
+bayo_entry = bayo_behind / 3.0;
+bayo_top_z = bayo_behind + rivet_thick + bayo_above_gap;
+bayo_entry_ramp = bayo_entry + bayo_interf;
+
+rivet_entry_width = rivet_width + side_rivet_gap;
+
 $fs=0.5;
-$fa=5;
+$fa=1;
+
+// bayonet definition
+
+bayo_a = [ bayo_entry_x, 0 ];
+bayo_p = [ 0, bayo_entry_z ];
+bayo_n = [ 0, bayo_behind-bayo_inramp_z ];
+bayo_m = [ bayo_inramp_x, bayo_behind ];
+bayo_l = bayo_m + bayo_interf * [ 1/bayo_interf_slope,  1 ];
+bayo_k = bayo_l + [ bayo_interf_width, 0 ];
+bayo_j = bayo_k + bayo_interf * [ 1/bayo_interf_slope, -1 ];
+bayo_i = bayo_j + [ rivet_width, 0 ];
+bayo_h = [ bayo_i[0], bayo_behind + rivet_thick + bayo_above_gap ];
+bayo_g = [ bayo_m[0] - rivet_width, bayo_h[1] ];
+
+bayo_e = [-bayo_p[0], bayo_p[1]] - [rivet_entry_width,0];
+bayo_d = [-bayo_a[0], bayo_a[1]] - [rivet_entry_width,0];
+bayo_c = bayo_d + [0,-5];
+bayo_b = bayo_a + [0,-5];
+
+bayo_f = [ bayo_e[0], bayo_g[1] + (bayo_e[0] - bayo_g[0]) ];
+
+bayo_polygon = [ bayo_a,
+                bayo_b,
+                bayo_c,
+                bayo_d,
+                bayo_e,
+                bayo_f,
+                bayo_g,
+                bayo_h,
+                bayo_i,
+                bayo_j,
+                bayo_k,
+                bayo_l,
+                bayo_m,
+                bayo_n,
+                bayo_p ];
+
+echo(bayo_polygon);
 
 module MainProfile(){
   main_cnr_pos = [ side_thick, top_z ] - [1,1]*main_cnr;
@@ -41,10 +99,57 @@ module MainProfile(){
       square([10,10]);
     }
   }
-  %polygon([[ -1,                    seal_thick      ],
-          [ -1,                    top_z            ],
-          [ main_cnr_pos[0],       top_z            ],
-          [ side_thick,            main_cnr_pos[1]  ]]);
+  polygon([[ -1,                    seal_thick        ],
+          [ -1,                    top_z             ],
+          [ main_cnr_pos[0],       top_z             ],
+          [ side_thick,            main_cnr_pos[1]   ],
+          [ side_thick,            -side_height      ],
+          [ side_taper,            -side_height      ],
+          [ 0,                     -rivet_posn       ],
+          [ 0,                     -(seal_recess[0] + seal_recess[1]) ],
+          [ seal_recess[0],        -(seal_recess[0]) ],
+          [ seal_recess[0],        seal_thick        ],
+          ]);
+}
+
+module RotateProjectSlice(offset, slice_size, nom_rad, real_rad){
+  // nom_rad > real_rad
+  rotate([0,0, atan2(offset, nom_rad) ]){
+    intersection(){
+      translate([-offset, -10, 0])
+       rotate([90,0,0])
+       linear_extrude(height= nom_rad*2)
+       polygon(bayo_polygon);
+      translate([0,0, -25])
+       cylinder(h=50, r= real_rad);
+      translate([0,0, -25])
+       linear_extrude(height= 50)
+       polygon([ [ 0,0 ],
+                 [ -slice_size, -real_rad*2 ],
+                 [ +slice_size, -real_rad*2 ] ]);
+    }
+  }
+}
+
+module RotateProject(x_min, x_max, slice_size, nom_rad, real_rad){
+  offs = [ for (i=[ x_min :
+                   slice_size :
+                   x_max + slice_size ]) i ];
+  echo (offs);
+  for (off=offs)
+    RotateProjectSlice(off, slice_size, nom_rad, real_rad);
+}
+
+module BayonetCutout(){
+  RotateProject(bayo_c[0], bayo_i[0], bayo_slice_size,
+               main_dia/2 + side_thick, 
+               main_dia/2 + rivet_tall);
+}
+
+module ProfilesDemo(){
+  translate([-20,0]) MainProfile();
+  polygon(bayo_polygon);
 }
 
-MainProfile();
+//ProfilesDemo();
+BayonetCutout();