X-Git-Url: http://www.chiark.greenend.org.uk/ucgi/~ianmdlvl/git?p=reprap-play.git;a=blobdiff_plain;f=fairphone-case.scad;h=64fe13d8e308f6b13ff4ee8eb74ec15ff56713b0;hp=67218c745eb45aea782551740100bd4031929fd4;hb=3280426eef100da072284693787efb97ca2fe848;hpb=71a6b02fd3187c5d0f3e69bb7ee3a8678612aa7c;ds=sidebyside

diff --git a/fairphone-case.scad b/fairphone-case.scad
index 67218c7..64fe13d 100644
--- a/fairphone-case.scad
+++ b/fairphone-case.scad
@@ -62,6 +62,8 @@ lid_gap_x = 0.25;
 lid_gap_z = 0.25;
 lid_lip = 1.75;
 
+catch_slop = 0.25;
+
 foldover_gap = 0.50;
 foldover_lever_gap = 0.50;
 
@@ -91,6 +93,16 @@ hinge_r_arms_gap = 0.55;
 
 rearspeaker_gap    = [ 1.0, 1.0 ]; // each side
 
+catch_len = 7.5;
+catch_width = 15;
+catch_thickness = 1.0;
+catch_side_gap = 0.75; // each side
+
+catch_depth = 1.25;
+catch_height = 0.35;
+catch_finger_height = 1.5;
+catch_finger_depth = 2.5;
+
 // ---------- calculated ----------
 
 phone_width =  (phone + bumper*2)[0];
@@ -176,12 +188,33 @@ hex20 = max(epp2o[0],
 	    phone_cnr_rad,
 	    kppd[0] + hingescrew_head_th + keeper_gap_x_holes);
 hex21 = hex20 + hingescrew_portion_len;
-hex22 = hex21 - hinge_x_gap;
+hex22 = hex21 + hinge_x_gap;
 hex23 = hex22 + hingescrew_portion_len;
 hex24 = hex20 + hingescrew_shaft_len + hinge_x_postscrew_gap;
 echo(hex20, hex21, hex22, hex23, hex24);
 echo(hingescrew_portion_len);
 
+// catch
+
+cppJ = [ epp4[0] + catch_thickness, lpp10[1] ];
+cppA = cppJ + [lid_gap_x, -lid_gap_z];
+cppB = [ epp0[0], cppA[1] ];
+cppP = [ epp4[0], cppJ[1] ];
+
+cppS = cppJ + [0,-1] * catch_len;
+cppD = [ cppA[0], cppS[1] + catch_slop ];
+cppC = [ cppB[0], cppD[1] ];
+cppT = cppS + [1,0] * catch_depth;
+cppU = cppT + [0,-1] * catch_height;
+cppV = [ cppS[0], cppU[1] - catch_depth ];
+
+cppR = 0.5*(cppP + cppJ);
+
+cp_rQ = 0.5 * (cppJ[0] - cppP[0]);
+cppQ = [ cppR[0],
+	 cppV[1] - (catch_finger_height - cp_rQ) ];
+cppF = [ cppV[0] + catch_finger_depth, cppC[1] ];
+
 // ---------- modules ----------
 
 module KeeperProfile(slant=0){
@@ -275,6 +308,31 @@ module ButtonPlan(l, deep, cut){
   }
 }
 
+module CatchCatchProfile(){
+  hull(){
+    for (c=[ cppR, cppQ ])
+      circleat(c, cp_rQ);
+  }
+  hull(){
+    circleat(lpp12, lp_r12);
+    circleat(lpp12 + [5,0], lp_r12);
+    rectfromto(cppP, cppP + [5,0.1]);
+  }
+  polygon([cppJ, cppS, cppT, cppU, cppV, cppQ, cppR]);
+}
+
+module CatchCutProfile(){
+  polygon([ cppB,
+	    cppA,
+	    cppD,
+	    cppF,
+	    cppF + [0,-10],
+	    cppF + [-10,-10],
+	    lpp12 + [-10,0],
+	    lpp12 + [10,0]
+	    ]);
+}
+
 module Flip_rhs(yn=[0,1]) {
   for ($rhsflip=yn) {
     translate([phone_width/2, 0, 0])
@@ -484,6 +542,13 @@ module HingePortion(x0,x1){
     children(0);
 }
 
+module CatchPortion(width){
+  translate([phone_width/2, 0,0])
+    rotate([90,0,-90])
+    linextr(-width/2, width/2)
+    children(0);
+}
+
 module CaseBase(){
   AroundEdges(epp3[1], case_th_bottom, 1)
     EdgeProfile();
@@ -567,6 +632,10 @@ module Case(){ ////toplevel
 
     // screw holes in the hinge arms
     HingeScrews();
+
+    // catch striker
+    CatchPortion(catch_width + catch_side_gap*2)
+      CatchCutProfile();
   }
 }
 
@@ -592,6 +661,10 @@ module Lid(){ ////toplevel
 
       // hinge arms
       HingePortion(hex20, hex21) HingeLidProfile();
+
+      // catch
+      CatchPortion(catch_width)
+	CatchCatchProfile();
     }
     Struts(lpp10[0] + strut_min_at_end, lpp13[1], -case_th_lid);
 
@@ -838,6 +911,14 @@ module DemoProfiles(){ ////toplevel
     color("black") translate([0,0,-2]) HingeLeverOuterProfile();
     color("orange") translate([0,0,-1]) HingeLeverInnerProfile();
   }
+
+  translate([20,-30]) {
+    %EdgeProfile();
+    %LidEdgeProfile();
+    //translate([0,0,1]) CatchCutProfile();
+    color("blue") CatchCatchProfile();
+    color("red") difference(){ EdgeProfile(); CatchCutProfile(); }
+  }
 }
 
 //EdgeProfile();