poster-tube-lid: catch wip, CatchPostDistort varying coarseness

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

diff --git a/poster-tube-lid.scad b/poster-tube-lid.scad
index 3458ca04647d655d1625562f532a521c095195fd..bdad0c229d783ceb17881dccfe090eec6c61bb8f 100644 (file)
--- a/poster-tube-lid.scad
+++ b/poster-tube-lid.scad
@@ -86,6 +86,7 @@ catch_pin_height = 7;
 catch_stem_below_gap = 1.0;
 catch_stem_beside_gap = 2.0;
 catch_pin_gap = 0.5;
+catch_hook_slope = 0.15;
 
 // calculated
 
@@ -139,10 +140,12 @@ smc_cnr_c_x = sm_bolt_shaft/2 - sm_closure_cnr
 
 catch_cr = catch_knob_dia/2 + catch_stem_beside_gap;
 catch_strap_width = sm_main_width;
+catch_strap_thick = sm_main_thick;
 catch_stem_end_h = catch_stem_h;
 catch_pin_width = rivet_entry_width - catch_pin_gap;
 
 cppy6 = -catch_strap_width/2;
+cppxC = 0.34 * sm_inner_rad * TAU;
 cppB = [ catch_pin_width/2,
         cppy6
         + catch_stem_below_gap
@@ -152,12 +155,14 @@ cpp0 = [ 0,
         cppB[1]
         + catch_knob_dia
         + catch_knob_above_gap ];
+cpp12 = cpp0 + [1,0] * (catch_pin_height * catch_hook_slope);
 cpp1 = cpp0 + [0,1] * catch_pin_height;
 cpp2 = cpp1 + [1,0] * catch_pin_width;
 cpp4 = cpp0 + [0,-1] * catch_stem_end_h;
 cpp3 = [ cpp2[0], cpp4[1] ];
 cpp5 = [ cpp0[0] - catch_stem_len,
         -catch_stem_h ];
+cpp6 = [ cpp5[0], catch_cr ];
 cpp7 = cppB + [1,-1] * catch_knob_dia/2
             + [ catch_stem_beside_gap, -catch_stem_below_gap ]
             + [ 0, -catch_pin_height ]
@@ -166,8 +171,8 @@ cpp11 = cpp7 + [1,0] * catch_cr;
 cpp10 = [ cpp11[0], 0 - catch_cr ];
 cpp8 = cpp10 + [1,0] * catch_cr;
 cpp9 = cpp8 + [0,1] * catch_cr;
-cppC = cpp8 + [1,1] * catch_cr;
-cppA = [ cpp5[0] - catch_cr, 0 ];
+cppC = [ cppxC, cpp9[1] ];
+cppA = [ -cppxC, 0 ];
 cppD = cppC + [0,-1] * catch_strap_width;
 cppE = [ cppA[0], cppD[1] ];
 
@@ -513,13 +518,26 @@ module StrapMount(){ ////toplevel
 }
 
 module CatchCoreProfile(){ ////toplevel
+  hull(){
+    translate(cppB) circle(r= catch_knob_dia/2);
+    polygon([cpp4,
+            cppB,
+            cpp3]);
+  }
+  translate(cpp8)
+    circle(catch_cr);
+  polygon([
+          cpp4,
+          cppB,
+          cpp3,
+          cpp2,
+          cpp1,
+          cpp12,
+          ]);
   difference(){
     polygon([ cpp4,
-             cppB,
              cpp3,
-             cpp2,
-             cpp1,
-             cpp0,
+             cpp12,
              cppA,
              cppE,
              cppD,
@@ -530,9 +548,36 @@ module CatchCoreProfile(){ ////toplevel
              cpp7,
              cpp5,
              ], convexity=10);
+    hull(){
+      translate(cpp7) circle(r= catch_cr);
+      polygon([ cpp7,
+               cpp5,
+               cpp11 ]);
+    }
+    hull(){
+      translate(cpp6) circle(catch_cr);
+      polygon([ cppA,
+               cpp0,
+               cpp1 ]);
+    }
   }
 }
 
+module CatchPreDistort(){ /////toplevel
+  scale(100 / sm_inner_rad)
+    rotate([90,0,0])
+    linear_extrude(height=catch_strap_thick, convexity=10)
+    CatchCoreProfile();
+}
+
+module CatchAssembly(){ /////toplevel
+  scale(sm_inner_rad / 100)
+    import(str("poster-tube-lid,CatchPostDistort-fa",
+              (coarse ? 20 : 1),
+              ".stl"),
+          convexity=20);
+}
+
 //ProfilesDemo();
 //BayonetCutout();
 //MainProfile();