diff --git a/3d/README.md b/3d/README.md
index 497533c..0b6d98c 100644
--- a/3d/README.md
+++ b/3d/README.md
@@ -1,13 +1,14 @@
 The enclosure models are available on Onshape for viewing, editing and exporting.
+Printing with PLA+ may provide better strength than regular PLA.
 
-** Variant 1 - metal threaded heat inserts
-https://cad.onshape.com/documents/58d3fc7e6c256c4f6a684caf/v/5138c4281d6c2b3508b37475/e/96371cb25b019416be0a198b
+** Variant 1 (Easier) - self tapping plastic threads. Easier to source.
+Screws: Hex socket head cap, M2.5 x 10mm.  https://www.aliexpress.com/item/10000139502321.html
+https://cad.onshape.com/documents/58d3fc7e6c256c4f6a684caf/v/919d1c8c2464819c6bc56821/e/96371cb25b019416be0a198b
+
+** Variant 2 - metal threaded heat inserts
 Heat threaded inserts: M2.5, 3.5mm OD, 3mm length.  https://www.aliexpress.com/item/4000688982018.html
 Screws: Hex socket head cap, M2.5 x 10mm.  https://www.aliexpress.com/item/10000139502321.html
-
-** Variant 2 - self tapping plastic threads. Easier to source.
-https://cad.onshape.com/documents/58d3fc7e6c256c4f6a684caf/w/7c73a77406fb9bcebbf3caa8/e/96371cb25b019416be0a198b
-Screws: Hex socket head cap, M2.5 x 10mm.  https://www.aliexpress.com/item/10000139502321.html
+https://cad.onshape.com/documents/58d3fc7e6c256c4f6a684caf/v/9748de4b75ec777ad8fbd9ed/e/96371cb25b019416be0a198b
 
 
 Important: Clean the 3D print to have a clean and flat surface for the TFT front surface interface.
diff --git a/3d/enclosure_metal_insert_threads.stl b/3d/enclosure_metal_insert_threads.stl
index 5453a34..7ad0c7e 100644
Binary files a/3d/enclosure_metal_insert_threads.stl and b/3d/enclosure_metal_insert_threads.stl differ
diff --git a/3d/enclosure_self_tapping_threads.stl b/3d/enclosure_self_tapping_threads.stl
index 08d52d8..0312871 100644
Binary files a/3d/enclosure_self_tapping_threads.stl and b/3d/enclosure_self_tapping_threads.stl differ