wip - add matrix transformations

rack/connector/stackYBarConnectors.scad

@@ -0,0 +1,128 @@
+include <../../helper/screws.scad>
+include <../../helper/common.scad>
+include <../../helper/matrix.scad>
+include <../../helper/slack.scad>
+include <../../helper/dovetail.scad>
+include <../../helper/halfspace.scad>
+
+include <../sharedVariables.scad>
+
+include <../config.scad>
+
+connectorYEdgeToYBarYEdge = 5;
+connectorXEdgeToYBarXEdge = 5;
+
+connectorRectWidth = 10;
+connectorRectDepth = 10;
+connectorTotalHeight = 10;
+connectorSocketMagnetExtrudeHeight = 1;
+connectorTaperStartHeight = 3;
+
+connectorTopR = 3;
+
+connectorRectPlugSlack = -0.2;
+connectorRectSocketSlack = 0.2;
+
+connectorBottomToScrew = 6;
+
+module stackConnectorBase(rectSlack, topSlack=0.0) {
+
+  wSlacked = connectorRectWidth + rectSlack;
+  dSlacked = connectorRectDepth + rectSlack;
+  topRSlacked = connectorTopR + rectSlack/2;
+
+  module connRect() {
+    linear_extrude(height=eps)
+    square(size = [wSlacked, dSlacked]);
+  }
+
+  module connTop() {
+    linear_extrude(height=eps)
+    circle(r=topRSlacked);
+  }
+
+  hull() {
+    connRect();
+
+    translate(v=[0,0,connectorTaperStartHeight])
+    connRect();
+  }
+
+  hull() {
+    translate(v = [0, 0, connectorTaperStartHeight])
+    connRect();
+
+    translate(v=[wSlacked/2, dSlacked/2, connectorTotalHeight+topSlack])
+    connTop();
+  }
+}
+
+
+module onYBarStackConnectorNegative() {
+
+  wSlacked = connectorRectWidth + connectorRectSocketSlack;
+  dSlacked = connectorRectDepth + connectorRectSocketSlack;
+
+  bevelSlack = 0.6;
+  bevelR = wSlacked + bevelSlack;
+  bevelW = dSlacked + bevelSlack;
+  bevelH = 0.6;
+
+  screwExtension = 4;
+
+
+  union() {
+    stackConnectorBase(connectorRectSocketSlack, topSlack=0.4);
+
+    translate(v = [-screwExtension, connectorRectDepth/2, connectorBottomToScrew])
+    rotate(a = [0, -90, 0])
+    counterSunkHead_N(rackFrameScrewType, screwExtension = 5, headExtension = 10);
+
+    // bevel at the lip of the socket to guide the plug, as well as mitigate elephant foot during 3d printing
+    hull() {
+      translate(v = [0, 0, bevelH])
+      linear_extrude(height = eps)
+      square(size = [wSlacked, dSlacked]);
+
+      translate(v = [-bevelSlack/2, -bevelSlack/2, 0])
+      linear_extrude(height = eps)
+      square(size = [bevelR, bevelW]);
+    }
+  }
+}
+
+
+module stackConnectorPlug() {
+
+  difference() {
+    stackConnectorBase(connectorRectPlugSlack);
+
+    translate(v=[connectorRectWidth/2,connectorRectDepth/2,connectorBottomToScrew])
+    rotate(a=[0,0,90])
+    rotate(a=[90,0,0])
+    hexNutPocket_N(rackFrameScrewType, openSide=false);
+  }
+}
+
+module stackConnectorDual() {
+
+  space = 0.5; // extra space inbetween
+
+  translate(v=[0,0,space])
+  stackConnectorPlug();
+
+  mirror(v=[0,0,1])
+  stackConnectorPlug();
+
+  cube(size=[connectorRectWidth+connectorRectPlugSlack, connectorRectDepth+connectorRectPlugSlack, space]);
+}
+
+
+module stackConnectorBottom() {
+
+  height = 2; // space between bottom and floor
+
+  stackConnectorPlug();
+  translate(v=[0,0,-height])
+  cube(size=[connectorRectWidth+connectorRectPlugSlack, connectorRectDepth+connectorRectPlugSlack, height]);
+}