diff --git a/hinges.scad b/hinges.scad
index 4668e32..3ae10ec 100644
--- a/hinges.scad
+++ b/hinges.scad
@@ -319,7 +319,6 @@ module _knuckle_hinge_profile(offset, arm_height, arm_angle=45, knuckle_diam=4,
   ofs = arm_height+offset/tan(arm_angle);
   start=round_bot==0 && round_top==0 ? os_flat(abs_angle=90)
                                      : os_round(abs_angle=90, cut=[-round_top,-round_bot],k=.8);
-  f=echo(clearance=clearance);
   back(clearance)
   difference(){
     union(){
diff --git a/rounding.scad b/rounding.scad
index bb88dc1..f010083 100644
--- a/rounding.scad
+++ b/rounding.scad
@@ -1251,14 +1251,14 @@ function _path_line_intersection(path, line, ind=0) =
                 _path_line_intersection(path, line, ind+1);
 
 module offset_stroke(path, width=1, rounded=true, start, end, check_valid=true, quality=1, chamfer=false, closed=false,
-                     atype="hull", anchor, spin, cp="centroid")
+                     atype="hull", anchor="origin", spin, cp="centroid")
 {
         result = offset_stroke(
                 path, width=width, rounded=rounded,
                 start=start, end=end,
                 check_valid=check_valid, quality=quality,
                 chamfer=chamfer,
-                closed=closed
+                closed=closed,anchor="origin"
         );
         region(result,atype=atype, anchor=anchor, spin=spin, cp=cp) children();
 }