First checkin

frame.scad

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+
+// -----------------------------------------------------------------------
+// frame is a project to generate connectors to build a frame which can
+// be used to build anything by combining the connections and the struts.
+// It will, however, just produce parts for a frame, not the walls or
+// plates to be used to hold any equipment.
+// 
+// The frames consist of two kinds of elements:
+// - struts:      Currently just a straight line between two connectors. 
+//                The strut has two endings which are a bit smaller than 
+//                the strut and fit into the connectors. 
+// - connectors:  The connectors in different variations
+// --------------------------------------------------------------------
+/* [Connector Options] */
+// The kind of connections
+Connector_kind = 0; // [ 0 : None, 1 : Strut, 2 : Minus, 3 : Plus, 4 : Three Flat, 5 : Three Corner, 6 : Four Corner, 7 : Five Connectors, 8 : Six Connectors ] 
+// The length of a strut without connectors
+strut_length = 10; // [ 1.0 : 220.0 ] 
+// Use the attachment for struts?
+strut_attachment = false;
+
+/* [Hidden] */
+// **********************
+// ** Static Settings: **
+// **********************
+include <static.scad>
+
+// --------------------------------------------------------------------
+// a strut, beginning and ending with a connector.
+// The connectors are a bit smaller than the holes in the
+// connections to make them fit better. 
+// Please edit the connector_correction in static.scad to
+// your needs.
+// --------------------------------------------------------------------
+module strut (strutlength, size, wall, correction, attachment) {
+
+    shift = wall + correction;
+    plugsize = size - 2 * shift;
+    translate ([0, shift, shift])
+        cube(plugsize);
+    translate([plugsize, 0, 0]) 
+        cube([strutlength, size, size]);
+    translate([plugsize + strutlength, shift, shift]) 
+        cube(plugsize);
+    if (attachment[0]) {
+        // the attachment is located on the front of the strut, but 
+        // raised for the amount of thickness of the plate. The 
+        // width of the attachment is variable but should not be too
+        // small.
+        translate([plugsize, -attachment[2], attachment[1]]) 
+        cube([strutlength, attachment[2], wall]);
+    }
+}
+
+
+// --------------------------------------------------------------------
+// a single connector which connects to one side of a strut.
+// Will be combined to multiple way connectors by adding, translating
+// and rotating the required connectors
+// --------------------------------------------------------------------
+module connector(size = connector_length, wall = wall_thickness) {
+    difference () {
+        cube(size);
+        translate([wall, wall, wall])
+            #cube([size , size - 2 * wall, size - 2 * wall]);
+    }
+}
+
+// --------------------------------------------------------------------
+// a straight connection of two connectors
+// --------------------------------------------------------------------
+module minus(size, wall) {
+    cube(size);
+    translate ([size, 0, 0]) 
+        connector(size = size, wall = wall);
+    translate ([0, 0, size]) 
+        rotate (a = [0, 180, 0])  
+            connector(size = size, wall = wall);
+
+}
+
+// --------------------------------------------------------------------
+// four connections with a 90 degree angle
+// --------------------------------------------------------------------
+module plus(size, wall) {
+    minus(size = size, wall = wall);
+    translate ([size, 0, 0]) 
+        rotate (a = [0, 0, 90])  
+            minus(size = size, wall = wall);
+}
+
+// --------------------------------------------------------------------
+// A three way connector
+// --------------------------------------------------------------------
+module threeflat(size, wall) {
+    minus(size = size, wall = wall);
+    translate ([size, size, 0]) 
+        rotate (a = [0, 0, 90])  
+            connector(size = size, wall = wall);
+}
+
+// --------------------------------------------------------------------
+// A three way connector to build the corners of a housing
+// The basic building block for the connections. All others
+// just add a connector to the previous one.
+// --------------------------------------------------------------------
+module threecorner(size, wall) {
+    cube(size);
+    translate ([size, 0, 0]) 
+        connector(size = size, wall = wall);
+    translate ([size, size, 0]) 
+        rotate (a = [0, 0, 90])  
+            connector(size = size, wall = wall);
+    translate ([size, 0, size]) 
+        rotate (a = [0, 270, 0])  
+            connector(size = size, wall = wall);
+}
+
+// --------------------------------------------------------------------
+// A four way connector used either as a stand in the four corners 
+// or for a new section between the bottom and the top
+// --------------------------------------------------------------------
+module fourcorner(size, wall) {
+    threecorner(size = size, wall = wall);
+    translate ([0, 0, size]) 
+        rotate (a = [0, 180, 0])  
+            connector(size = size, wall = wall);
+}
+
+// --------------------------------------------------------------------
+// basicly a plus with a connection on the top
+// --------------------------------------------------------------------
+module fiveway(size, wall) {
+    fourcorner(size = size, wall = wall);
+    rotate (a = [0, 0, 270])  
+        connector(size = size, wall = wall);
+}
+
+// --------------------------------------------------------------------
+// a plus with a connection on the bottom and the top,
+// like a star ...
+// --------------------------------------------------------------------
+module sixway(size, wall) {
+    fiveway(size = size, wall = wall);
+    rotate (a = [0, 90, 0])  
+        connector(size = size, wall = wall);
+}
+
+// ----------------------------------------------------------------------------
+module main() {   
+    if (Connector_kind == 0) {
+        echo("No connection selected. Please select one of the connector types");
+    }
+    else if (Connector_kind == 1) {
+        strut(strutlength = strut_length, 
+              size = CONNECTOR_LENGTH, 
+              wall = WALL_THICKNESS, 
+              attachment = [strut_attachment, PLATE_THICKNESS, PLATEHOLDER_WIDTH],
+              correction = CONNECTOR_CORRECTION);
+    }
+    else if (Connector_kind == 2) {
+        minus(size = CONNECTOR_LENGTH, wall = WALL_THICKNESS);
+    }
+    else if (Connector_kind == 3) {
+        plus(size = CONNECTOR_LENGTH, wall = WALL_THICKNESS);
+    }
+    else if (Connector_kind == 4) {
+        threeflat(size = CONNECTOR_LENGTH, wall = WALL_THICKNESS);
+    }
+    else if (Connector_kind == 5) {
+        threecorner(size = CONNECTOR_LENGTH, wall = WALL_THICKNESS);
+    }
+    else if (Connector_kind == 6) {
+        fourcorner(size = CONNECTOR_LENGTH, wall = WALL_THICKNESS);
+    }
+    else if (Connector_kind == 7) {
+        fiveway(size = CONNECTOR_LENGTH, wall = WALL_THICKNESS);
+    }
+    else if (Connector_kind == 8) {
+        sixway(size = CONNECTOR_LENGTH, wall = WALL_THICKNESS);
+    }    
+}
+
+// Do it!
+main();