diff --git a/examples/taiwan/voronoi_taiwan.scad b/examples/taiwan/voronoi_taiwan.scad
index 3d30106e..7749ec82 100644
--- a/examples/taiwan/voronoi_taiwan.scad
+++ b/examples/taiwan/voronoi_taiwan.scad
@@ -1,4 +1,4 @@
-use <experimental/tri_delaunay.scad>;
+use <triangle/tri_delaunay.scad>;
 use <hull_polyline2d.scad>;
 use <shape_taiwan.scad>;
 use <in_shape.scad>;
diff --git a/src/experimental/_impl/_tri_delaunay_comm_impl.scad b/src/triangle/_impl/_tri_delaunay_comm_impl.scad
similarity index 100%
rename from src/experimental/_impl/_tri_delaunay_comm_impl.scad
rename to src/triangle/_impl/_tri_delaunay_comm_impl.scad
diff --git a/src/experimental/_impl/_tri_delaunay_impl.scad b/src/triangle/_impl/_tri_delaunay_impl.scad
similarity index 94%
rename from src/experimental/_impl/_tri_delaunay_impl.scad
rename to src/triangle/_impl/_tri_delaunay_impl.scad
index da0fe25b..618ce50b 100644
--- a/src/experimental/_impl/_tri_delaunay_impl.scad
+++ b/src/triangle/_impl/_tri_delaunay_impl.scad
@@ -1,13 +1,13 @@
 use <_tri_delaunay_comm_impl.scad>;
-use <experimental/tri_circumcircle.scad>;
-use <util/map/hashmap.scad>;
-use <util/map/hashmap_get.scad>;
-use <util/map/hashmap_del.scad>;
-use <util/map/hashmap_keys.scad>;
-use <util/map/hashmap_put.scad>;
-use <util/some.scad>;
-use <util/has.scad>;
-use <util/find_index.scad>;
+use <../tri_circumcircle.scad>;
+use <../../util/map/hashmap.scad>;
+use <../../util/map/hashmap_get.scad>;
+use <../../util/map/hashmap_del.scad>;
+use <../../util/map/hashmap_keys.scad>;
+use <../../util/map/hashmap_put.scad>;
+use <../../util/some.scad>;
+use <../../util/has.scad>;
+use <../../util/find_index.scad>;
 
 function cc_center(cc) = cc[0];
 function cc_rr(cc) = cc[2];
diff --git a/src/experimental/_impl/_tri_delaunay_voronoi_impl.scad b/src/triangle/_impl/_tri_delaunay_voronoi_impl.scad
similarity index 81%
rename from src/experimental/_impl/_tri_delaunay_voronoi_impl.scad
rename to src/triangle/_impl/_tri_delaunay_voronoi_impl.scad
index f598fa67..9b91bb91 100644
--- a/src/experimental/_impl/_tri_delaunay_voronoi_impl.scad
+++ b/src/triangle/_impl/_tri_delaunay_voronoi_impl.scad
@@ -1,6 +1,6 @@
-use <experimental/tri_delaunay.scad>;
-use <util/map/hashmap_get.scad>;
-use <util/find_index.scad>;
+use <../tri_delaunay.scad>;
+use <../../util/map/hashmap_get.scad>;
+use <../../util/find_index.scad>;
 
 function indicesOfCell(iTris, triIndices) = 
     let(
diff --git a/src/experimental/_impl/_tri_ear_clipping_impl.scad b/src/triangle/_impl/_tri_ear_clipping_impl.scad
similarity index 100%
rename from src/experimental/_impl/_tri_ear_clipping_impl.scad
rename to src/triangle/_impl/_tri_ear_clipping_impl.scad
diff --git a/src/experimental/tri_circumcircle.scad b/src/triangle/tri_circumcircle.scad
similarity index 100%
rename from src/experimental/tri_circumcircle.scad
rename to src/triangle/tri_circumcircle.scad
diff --git a/src/experimental/tri_delaunay.scad b/src/triangle/tri_delaunay.scad
similarity index 100%
rename from src/experimental/tri_delaunay.scad
rename to src/triangle/tri_delaunay.scad
diff --git a/src/experimental/tri_delaunay_indices.scad b/src/triangle/tri_delaunay_indices.scad
similarity index 86%
rename from src/experimental/tri_delaunay_indices.scad
rename to src/triangle/tri_delaunay_indices.scad
index d4b0b51d..6845fbad 100644
--- a/src/experimental/tri_delaunay_indices.scad
+++ b/src/triangle/tri_delaunay_indices.scad
@@ -1,5 +1,5 @@
 use <_impl/_tri_delaunay_comm_impl.scad>;
-use <util/map/hashmap_keys.scad>;
+use <../util/map/hashmap_keys.scad>;
 
 function tri_delaunay_indices(d) =	[
 	for(tri = hashmap_keys(delaunay_triangles(d))) 
diff --git a/src/experimental/tri_delaunay_shapes.scad b/src/triangle/tri_delaunay_shapes.scad
similarity index 88%
rename from src/experimental/tri_delaunay_shapes.scad
rename to src/triangle/tri_delaunay_shapes.scad
index b5ee06de..e6dc1eb2 100644
--- a/src/experimental/tri_delaunay_shapes.scad
+++ b/src/triangle/tri_delaunay_shapes.scad
@@ -1,5 +1,5 @@
 use <_impl/_tri_delaunay_comm_impl.scad>;
-use <util/map/hashmap_keys.scad>;
+use <../util/map/hashmap_keys.scad>;
 
 function tri_delaunay_shapes(d) = 
     let(coords = delaunay_coords(d))
diff --git a/src/experimental/tri_delaunay_voronoi.scad b/src/triangle/tri_delaunay_voronoi.scad
similarity index 89%
rename from src/experimental/tri_delaunay_voronoi.scad
rename to src/triangle/tri_delaunay_voronoi.scad
index 36a6436b..ec897436 100644
--- a/src/experimental/tri_delaunay_voronoi.scad
+++ b/src/triangle/tri_delaunay_voronoi.scad
@@ -1,9 +1,9 @@
 use <_impl/_tri_delaunay_comm_impl.scad>;
 use <_impl/_tri_delaunay_voronoi_impl.scad>;
-use <util/map/hashmap.scad>;
-use <util/map/hashmap_keys.scad>;
-use <util/map/hashmap_get.scad>;
-use <util/reverse.scad>;
+use <../util/map/hashmap.scad>;
+use <../util/map/hashmap_keys.scad>;
+use <../util/map/hashmap_get.scad>;
+use <../util/reverse.scad>;
 
 function tri_delaunay_voronoi(d) = 
     let(
diff --git a/src/experimental/tri_ear_clipping.scad b/src/triangle/tri_ear_clipping.scad
similarity index 86%
rename from src/experimental/tri_ear_clipping.scad
rename to src/triangle/tri_ear_clipping.scad
index cc0dea56..27ad18cf 100644
--- a/src/experimental/tri_ear_clipping.scad
+++ b/src/triangle/tri_ear_clipping.scad
@@ -2,7 +2,7 @@
    copy from triangulate.scad, would move into triangle category
 **/
 
-use <experimental/_impl/_tri_ear_clipping_impl.scad>;
+use <_impl/_tri_ear_clipping_impl.scad>;
 
 // ret: "TRI_SHAPES", "TRI_INDICES"
 function tri_ear_clipping(shape_pts,  ret = "TRI_INDICES", epsilon = 0.0001) =