Started with Z-Motion

lib/extruder.scad

     
     // NEMA17 mockup
     color("gray")
-    %translate([-nema17_size / 2, 30 + 10, extruder_height_m])
+    %translate([-nema17_size / 2, 40 + 10, extruder_height_m])
         rotate([90, 0, 0])
-        nema17(30);
+        nema17(40);
 }
 
 module extruder_holder() {

xyRepRap.scad

 include <lib/extruder.scad>
 
 module gt2_belt(length) {
-    difference() {
-        belting("straight", "GT2_2mm", belt_length = length);
-        translate([-5, -5, 6])
-            cube([length + 10, 10, 10]);
-    }
+    //difference() {
+    //    belting("straight", "GT2_2mm", belt_length = length);
+    //    translate([-5, -5, 6])
+    //        cube([length + 10, 10, 10]);
+    //}
 }
 
 // #######################################################
 }
 
 module lower_frame(double) {
-    // bottom frame
-    translate([slot + slot_off, 0, 0])
-        tslot_x(slot, outer_width - (2 * (slot + slot_off)));
-    
     if (double) {
+        translate([slot + slot_off, 0, slot])
+            rotate([-90, 0, 0])
+            tslot_2_x(slot, outer_width - (2 * (slot + slot_off)));
+        
         translate([slot + slot_off, outer_length - slot, slot])
             rotate([-90, 0, 0])
             tslot_2_x(slot, outer_width - (2 * (slot + slot_off)));
         translate([outer_width - slot, slot + slot_off, 0])
             tslot_2_y(slot, outer_length - (2 * (slot + slot_off)));
     } else {
+        translate([slot + slot_off, 0, 0])
+            tslot_x(slot, outer_width - (2 * (slot + slot_off)));
+        
         translate([slot + slot_off, outer_length - slot, 0])
             tslot_x(slot, outer_width - (2 * (slot + slot_off)));
         
         slot_angle_connector();
     translate([slot + slot_off, outer_length - slot, slot + slot_off])
         slot_angle_connector();
-    translate([slot + slot_off, 0, outer_height - slot - slot_off])
+    translate([slot + slot_off, 0, outer_height - slot - slot_off - slot])
         rotate([0, 90, 0])
         slot_angle_connector();
     translate([slot + slot_off, outer_length - slot, outer_height - slot - slot_off - slot])
     translate([outer_width - slot - slot_off, outer_length - slot, slot + slot_off])
         rotate([0, -90, 0])
         slot_angle_connector();
-    translate([outer_width - slot - slot_off, 0, outer_height - slot - slot_off])
+    translate([outer_width - slot - slot_off, 0, outer_height - slot - slot_off - slot])
         rotate([0, 180, 0])
         slot_angle_connector();
     translate([outer_width - slot - slot_off, outer_length - slot, outer_height - slot - slot_off - slot])
         rotate([0, 90, 0])
         rail(outer_width - (4 * slot));
     
-    translate([x_carriage_pos, y_carriage_pos - x_carriage_len_add, slot / 2])
-        x_carriage();
+    //translate([x_carriage_pos, y_carriage_pos - x_carriage_len_add, slot / 2])
+    //    x_carriage();
 }
 
 module motion_xy() {
 
 module heatbed() {
     translate([slot + frame_off_x, slot + frame_off_y, bed_draw_height]) {
-        heatbed_plate();
+        //%heatbed_plate();
         
         // t-slots as heatbed frame
         translate([bed_x_off, bed_y_off, -slot - bed_z_dist])
     }
 }
 
+module motion_z() {
+    // front left bottom
+    color("green")
+    translate([(2 * slot) + 60, slot, slot / 2 + 5])
+        rotate([-90, 0, 90])
+        rail_mount(slot);
+    // front left top
+    color("green")
+    translate([(2 * slot) + 60, slot, outer_height - slot / 2 + 5 - slot])
+        rotate([-90, 0, 90])
+        rail_mount(slot);
+    // front left rail
+    color("cyan")
+    translate([slot + 60, slot + 15, 6])
+        rail(outer_height - slot - 12);
+    
+    // front right bottom
+    color("green")
+    translate([outer_width - (2 * slot), slot, slot / 2 + 5])
+        rotate([-90, 0, 90])
+        rail_mount(slot);
+    // front right top
+    color("green")
+    translate([outer_width - (2 * slot), slot, outer_height - slot / 2 + 5 - slot])
+        rotate([-90, 0, 90])
+        rail_mount(slot);
+    // front right rail
+    color("cyan")
+    translate([outer_width - slot - 60, slot + 15, 6])
+        rail(outer_height - slot - 12);
+}
+
 // #######################################################
 // ###################### Extruders ######################
 // #######################################################
 
 module extruders() {
+    w = nema17_size + 25;
     translate([0, -bracket_height, outer_height - slot])
     rotate([0, 0, 90]) {
-        translate([0, -(outer_width + (nema17_size + 10)) / 4, 0])
+        translate([0, -(outer_width + w) / 4, 0])
             extruder(slot);
-        translate([0, -(outer_width + (nema17_size + 10)) / 2, 0])
+        translate([0, -(outer_width + w) / 2, 0])
             extruder(slot);
-        translate([0, -(outer_width + (nema17_size + 10)) * 3 / 4, 0])
+        translate([0, -(outer_width + w) * 3 / 4, 0])
             extruder(slot);
     }
 }
 // ########################################################
 
 frame();
+
 motion_xy();
-extruders();
+//extruders();
+
+motion_z();
 heatbed();