introduce script to generate assembly animation. still needs cleanup

rack/assembly/attachSideConnectorModulesToYBars.scad

@@ -0,0 +1,59 @@
+include <./common.scad>
+use <./screwXBarAndYBar.scad>
+use <./addMagnetsToMagnetModules.scad>
+
+$vpt = [116,90,18];
+$vpr = [56,0,42];
+$vpd = 550;
+$vpf = 22.50;
+
+attachSideConnectorModulesToYBars(at=$t);
+
+module attachSideConnectorModulesToYBars(at=0) {
+  elevation = lerp(a=8, b=0, t=at);
+
+  // side module to front corner ybar
+  function sideModuleTrans(t=0) =
+      translate(v=[sideWallConnW,0,t-sideWallConnLugDepression])
+      * yBarSideModuleConnectorTrans
+    * mirror(v=[1,0,0]); // mirror for magnetModule
+
+  screwXBarAndYBar(at=1);
+
+  multmatrix(sideModuleTrans(elevation))
+    union() {
+      addMagnetsToMagnetModules(at=1);
+
+      translate(v=[yBarScrewHoleToOuterYEdge,yBarScrewHoleToFrontXEdge,sideWallConnLugDepression + 2*elevation])
+        caseScrewA();
+    }
+
+  multmatrix(xBarSpaceToYBarSpace * xBarMirrorOtherCornerTrans * yBarSpaceToXBarSpace * sideModuleTrans(elevation))
+    union() {
+      addMagnetsToMagnetModules(at=1);
+
+      translate(v=[yBarScrewHoleToOuterYEdge,yBarScrewHoleToFrontXEdge,sideWallConnLugDepression + 2*elevation])
+        caseScrewA();
+    }
+
+  multmatrix(yBarMirrorOtherCornerTrans * sideModuleTrans(elevation))
+    union() {
+
+      if (!plasticMask) {
+        hingeModule();
+      }
+
+      translate(v=[yBarScrewHoleToOuterYEdge,yBarScrewHoleToFrontXEdge,sideWallConnLugDepression + 2*elevation])
+        caseScrewA();
+    }
+
+  multmatrix(xBarSpaceToYBarSpace * xBarMirrorOtherCornerTrans * yBarSpaceToXBarSpace * yBarMirrorOtherCornerTrans * sideModuleTrans(elevation))
+    union() {
+      if (!plasticMask) {
+        hingeModule();
+      }
+
+      translate(v=[yBarScrewHoleToOuterYEdge,yBarScrewHoleToFrontXEdge,sideWallConnLugDepression + 2*elevation])
+        caseScrewA();
+    }
+}