rails end prototype

scad/common

@@ -1 +1 @@
-Subproject commit b499c2810117b5ca57014d5cb4219cf68b4c5c0f
+Subproject commit 53f4dd4a2d6dd038c1beb97f8ae721ec5905a43b

scad/jk_rails.scad

@@ -43,3 +43,4 @@ module end () {
 
 color("blue") rails(); 
 translate([0, RAIL_LEN / 2, 0]) end();
+translate([0, -RAIL_LEN / 2, 0]) rotate([0, 0, 180]) end();

scad/rails_2020.scad

@@ -1,24 +1,81 @@
 use <2020_profile.scad>
-//translate([-35, 0, -25]) linear_extrude(height=175) 2020_profile();
+//include <jk_rails.scad>
-translate([35, 0, -25]) linear_extrude(height=175) 2020_profile();
+include <./common/common.scad>
+include <./common/motors.scad>
+include <./common/rods.scad>
 
-module rounded_cube (c, d) {
+RailSpacing = 100;
-    r = d / 2;
+ThreadedRodSpacing = 50;
-    scaled = [c[0] - d, c[1] - d, c[2] - d];
+RailEndX = 140;
-    minkowski() {
+
-        cylinder(r = r, h = r, center = true);
+module m3_bolt_void (pos = [0, 0, 0], BoltH = 20, CapH = 3) {
-        cube(scaled, center = true);
+	D = 3.25;
+    CapD = 6;
+	translate(pos) {
+        translate([0, 0, CapH / 2]) cylinder(r = R(CapD), h = CapH, center = true, $fn = 40);
+		translate([0, 0, -BoltH / 2]) cylinder(r = R(D), h = BoltH + 0.01, center = true, $fn = 40);
 	}
 }
 
-$fn = 100;
+module bolt_voids_2020 (pos = [0, 0, 0]) {
-difference () {
+    translate(pos) {
-    rounded_cube([120, 60, 40], d=10);
+        //translate([0, -25, 0]) rotate([90, 0, 0]) m3_bolt_void(CapH = 6);
-    //rails
+        translate([0, 25, 0]) rotate([-90, 0, 0]) m3_bolt_void(CapH = 6);
-    translate([-35, 0, 0]) cube([21, 21, 40 + 1], center = true);
+        translate([-16, 0, 0]) rotate([0, -90, 0]) m3_bolt_void(CapH = 6, BoltH = 10);
-    translate([35, 0, 0]) cube([21, 21, 40 + 1], center = true);
+    }
-    //threaded rods
-    translate([0, 0, 0])cylinder(r = 5, h = 40 + 1, center = true);
-    //translate([-10, 0, 0])cylinder(r = 5, h = 40 + 1, center = true);
-    
 }
+
+module bolt_voids_motor (pos = [0, 0, 0]) {
+    Corner = NEMA17BoltSpacing / 2;
+    translate(pos) {
+        translate([Corner, Corner, 0]) m3_bolt_void(CapH = 6, BoltH = 40);
+        translate([Corner, -Corner, 0]) m3_bolt_void(CapH = 6, BoltH = 40);
+        translate([-Corner, Corner, 0]) m3_bolt_void(CapH = 6, BoltH = 40);
+        translate([-Corner, -Corner, 0]) m3_bolt_void(CapH = 6, BoltH = 40);
+    }
+}
+
+module rail_end (pos = [0, 0, 0], rot = [90, 0, 0], Motors = true) {
+    translate(pos) rotate(rot) difference () {
+        difference () {
+            translate([0, -10, 20]) rounded_cube([RailEndX, 80, 80], d = 10, center = true, $fn = 50);
+            translate([0, 10, 50]) rotate([0, 90, 0]) rounded_cube([60, 80, RailEndX + 1], d = 10, center = true, $fn = 50);
+        }
+        
+        //rails
+        translate([-RailSpacing / 2, 0, 5]) cube([21, 21, 40], center = true);
+        translate([RailSpacing / 2, 0, 5]) cube([21, 21, 40], center = true);
+        
+        //rails bolts
+        bolt_voids_2020([-RailSpacing / 2, 0, 0]);
+        rotate([0, 180, 0]) bolt_voids_2020([-RailSpacing / 2, 0, 0]);
+        if (Motors) {
+            translate([ThreadedRodSpacing / 2, 0, 0]) {
+                cylinder(r = R(NEMA17PadD + 0.5), h = 60, center = true, $fn = 100);
+                bolt_voids_motor([0, 0, 16]);
+            }
+            translate([-ThreadedRodSpacing / 2, 0, 0]) {
+                cylinder(r = R(NEMA17PadD + 0.5), h = 60, center = true, $fn = 100);
+                bolt_voids_motor([0, 0, 16]);
+            }
+        } else {
+            translate([-ThreadedRodSpacing / 2, 0, 0]) cylinder(r = R(LinearBearingOuterDiameter + 0.5), h = 60, center = true, $fn = 100);
+            translate([-ThreadedRodSpacing / 2, 0, 0]) cylinder(r = R(LinearBearingOuterDiameter + 0.5), h = 60, center = true, $fn = 100);
+        }
+        
+        //linear motion rod
+        translate([0, 0, 5]) cylinder(r = R(ThreadDiameter), h = 40, center = true, $fn = 50);
+        
+        //mounting bolts
+        translate([70 / 2, 0, 40]) rotate([90, 0, 0]) cylinder(r = R(10), h = 150, center = true, $fn = 40);
+        translate([-70 / 2, 0, 40]) rotate([90, 0, 0]) cylinder(r = R(10), h = 150, center = true, $fn = 40);
+    }
+}
+
+rail_end();
+
+//translate([-35, 0, -25]) linear_extrude(height=175) 2020_profile();
+//translate([RailSpacing / 2, 0, 0]) rotate([90, 0, 0]) linear_extrude(height=175) 2020_profile();
+
+//translate([ThreadedRodSpacing / 2, 40, 0]) rotate([90, 0, 0])  color("blue") NEMA17();
+//translate([-ThreadedRodSpacing / 2, 40, 0]) rotate([90, 0, 0])  color("blue") NEMA17();

scad/sprocketed_roller

@@ -1 +1 @@
-Subproject commit 3c6514e0e4702f7feda0758e12975043208f4797
+Subproject commit b4ea887d588a3728dfcb0fc64dc9195f278b7b1f