bike-lipo-box: straps for lipo battery assembly

diff --git a/bike-lipo-box.scad b/bike-lipo-box.scad
index de982d933f4a14d3717b9e7ecf7716acce3ab077..c7fc125f06e9780ce65507ebf92f04abc5850cf9 100644 (file)
--- a/bike-lipo-box.scad
+++ b/bike-lipo-box.scad
@@ -22,6 +22,12 @@ totz_outer = 31;
 
 wallthick = 2.5;
 
+strap_w = 5;
+strap_th = 4;
+strap_pillar = 3;
+strap_pillard = 5;
+strap_over = 2;
+
 // calculated
 
 totx_outer = totx_inner + wallthick*2;
@@ -138,6 +144,8 @@ module Box(){ ////toplevel
   switch_x = chargingconn_x + pxp6012_rad_outer
     + s1930_y_outer/2 + s1930_around;
 
+  strap_x_tot = strap_w + strap_pillar*2;
+
   difference(){
     union(){
       rotate([90,0,0])
@@ -147,6 +155,19 @@ module Box(){ ////toplevel
       translate([switch_x, toty_inner, totz_inner/2])
        rotate([90,0,90])
        S1930_Positive();
+
+      // straps for lipo
+      for (sx= [ 45, 80, 110 ]) {
+       for (sy= [ 10, 40 ]) {
+         translate([sx - strap_x_tot, sy, 0])
+         difference(){
+           translate([0,0, -0.1])
+             cube([strap_x_tot, strap_pillard, strap_th + strap_over]);
+           translate([strap_pillar, -1, 0])
+             cube([strap_w, strap_pillard+2, strap_th]);
+         }
+       }
+      }
     }
 
     // charging connector