Index: export_openscad/1206.scad
===================================================================
--- export_openscad/1206.scad	(nonexistent)
+++ export_openscad/1206.scad	(revision 11850)
@@ -0,0 +1,15 @@
+module part_1206()
+{
+	translate([0,0,0.3]) {
+		// body
+		color([0.1,0.1,0.1])
+			cube([3.2-2*0.2,1.6,0.6], center=true);
+		// terminals
+		color([0.8,0.8,0.8]) {
+			translate([+1.5, 0, 0])
+				cube([0.2, 1.6, 0.6], center=true);
+			translate([-1.5, 0, 0])
+				cube([0.2, 1.6, 0.6], center=true);
+		}
+	}
+}
Index: export_openscad/preliminary.txt
===================================================================
--- export_openscad/preliminary.txt	(nonexistent)
+++ export_openscad/preliminary.txt	(revision 11850)
@@ -0,0 +1,42 @@
+The openscad exporter generates the 3D model of the board in form of 
+an openscad script.
+
+The main entry point of the script is pcb_board(). All coordinates are in
+mm. The in x and y directions the 0;0 point of the board is the 0;0 point on
+screen in pcb-rnd, to make it easy to wrap the board in a translate() after
+measuring the coords of a point in pcb-rnd. The vertical origin is the middle
+of the board's FR4.
+
+Supported features:
+	- arbitrary shaped outline
+	- top/bottom copper (optional)
+	- top/bottom mask (optional)
+	- top/bottom silk (optional)
+	- holes (optional)
+	- element models (optional)
+
+Element models are loaded from external files referenced from the element
+in the pcb-rnd board file. Model files are searched recursively under the
+footprint library search path.
+
+The element (footprint instance) can have the following openscad related
+attributes, all optional:
+
+ - openscad=filename                  file name of the .scad script (3d element model)
+ - openscad-transformation=script     apply the specified transformation on the model instance
+ - openscad-param=p1,p2,p3...         parameters to pass on to the model
+
+If the openscad attribute is not present, no 3d model is inserted.
+
+If openscad-transformation is specified, it is inserted before the model
+call; it typically contains a transform() and/or a rotate() to modify the
+placement of the model. The 0;0;0 point of the placement is the origin of
+the element in pcb-rnd, on the surface of the board.
+
+If openscad-param is specified, the module is called with this parameter
+list, else the model is called with empty parameter list.
+
+A model file shall contain a single module, with "module" and the arbitrary
+module name in the same line, { in the following line. One instance of
+each model is copied into the output file so that the resulting openscad
+script has no external reference and is self-contained.