X-Git-Url: https://www.chiark.greenend.org.uk/ucgi/~ianmdlvl/git?a=blobdiff_plain;f=scaffold-clamp-common.scad;h=4e9f36759e267902306214f23f3b5aca9536a674;hb=ba7c5b240dcdab5fa3f4e3f7823bb828551471f0;hp=c16fbd8bce6dcb593b5101b543908aeb3d8af8f1;hpb=87fec0a73fe233ee27a0be196ea12df48ae21535;p=reprap-play.git

diff --git a/scaffold-clamp-common.scad b/scaffold-clamp-common.scad
index c16fbd8..4e9f367 100644
--- a/scaffold-clamp-common.scad
+++ b/scaffold-clamp-common.scad
@@ -38,6 +38,8 @@ cleat_horn_d_max = [12, 14];
 cleat_height = 25;
 cleat_stem_l = 20;
 
+cleat_overlap = (1-cos(60));
+
 // ---------- hhook ----------
 
 hhook_inside = 40;
@@ -96,7 +98,10 @@ vhook_outer_dia = vhook_inside + vhook_th*2;
 cleat_horn_tl = cleat_horn_l + cleat_stem_l/2;
 
 vcleat_dz = max(0,
-		cleat_horn_tl + cleat_horn_d_min[0]/2 - total_z/2
+		cleat_horn_tl
+		+ cleat_horn_d_min[0]/2
+		- cleat_horn_d_min[0]/2 * cleat_overlap
+		- total_z/2
 		);
 
 // calculated - hhook
@@ -307,21 +312,27 @@ module CleatBase(){
 }
 
 module VCleat(){
-  translate([0,0, vcleat_dz]){
-    difference(){
-      translate([0, -(main_r + cleat_height), 0]) {
-	rotate([0, -90, 90]) {
-	  CleatBase();
-	  for (m=[0,1]) {
-	    mirror([m,0,0]) {
-	      CleatHorn();
+  intersection(){
+    translate([0,0, vcleat_dz]){
+      difference(){
+	translate([0, -(main_r + cleat_height), 0]) {
+	  rotate([0, -90, 90]) {
+	    CleatBase();
+	    for (m=[0,1]) {
+	      mirror([m,0,0]) {
+		CleatHorn();
+	      }
 	    }
 	  }
 	}
+	linextr(-cleat_stem_l, +cleat_stem_l)
+	  circle(r = tube_dia/2 + 0.1);
       }
-      linextr(-cleat_stem_l, +cleat_stem_l)
-	circle(r = tube_dia/2 + 0.1);
     }
+      translate([0,0, total_z * 0.5])
+	cube(center=true,
+	     (main_r + cleat_stem_l)*4 * [1,1,0] +
+	     total_z * [0,0,2]);
   }
 }