osstest-arm-net-bracket: holes

diff --git a/osstest-arm-net-bracket.scad b/osstest-arm-net-bracket.scad
index 19bfcbef2549b4eb2a45937687cde93d8f71854d..d180f342b7708b917da47dee4179eb9a82629c74 100644 (file)
--- a/osstest-arm-net-bracket.scad
+++ b/osstest-arm-net-bracket.scad
@@ -14,9 +14,17 @@ strapthick = 2;
 strapwidth = 5;
 ridgewidth = 2;
 
+holedia = 2;
+
 module Object(){
-  translate([-holedist-tabside, 0, 0])
-    cube([tabside*2+holedist, thick, tabunder+tabover]);
+  difference(){
+    translate([-holedist-tabside, 0, 0])
+      cube([tabside*2+holedist, thick, tabunder+tabover]);
+    for (x=[-holedist,0])
+      translate([x, -1, tabunder])
+       rotate([-90,0,0])
+       cylinder(r= holedia/2+0.5, h=thick+2, $fn=20);
+  }
   difference(){
     translate([-tonguewidth, 0, 0])
       cube([tonguewidth, totaldepth, tonguethick+strapthick]);