Add links to repo for case files and gerbers

docs/source/build_guide.rst

@@ -19,6 +19,8 @@ It's all through-hole components, so should be approachable to even beginners...
 
 There are still some older photos here from the v1 non-backlit board, but the assembly is the same once the backlight components are in place.
 
+You'll need the TWO pcb's to start with.  One contains the electronic components and the other has the shine-through legends and goes on top of the assembled board at the end.  You can find the gerber files for both in the main `PiFinder git repo <https://github.com/brickbots/PiFinder/tree/release/gerbers>`_
+
 Backlight Components
 ------------------------
 
@@ -239,6 +241,8 @@ Any configuration can technically work with any scope, but since the camera alwa
 
 The Flat configuration places the keypad and screen in easy reach for refractors, SCT's and other rear-focuser scopes.  When the scope is pointed upward, the screen is tilted towards you for quick access.
 
+All the STL files for the PiFinder case parts can be found in the main `PiFinder git repo <https://github.com/brickbots/PiFinder/tree/release/case>`_
+
 
 Printed Parts
 ===========================