initial experiments

mini-telescope.scad

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+use <gears/gears.scad>
+
+$fn = 50;
+gear_modul = 1;
+gear_tooth_number_small = 10;
+gear_tooth_number_large = 130;
+gear_large_full_diameter = 150;
+
+module brett () {
+    color("white") difference () {
+        cylinder(d=197, h=12);
+        cylinder(d=15.5, h=12);
+    }
+}
+
+module stepper_zahnrad () {
+    difference () {
+        union () {
+            translate([0,0,10]) spur_gear(modul=gear_modul, tooth_number=gear_tooth_number_small, width=3, bore=0);
+            cylinder(h=10+3, d=6.5+2);
+         }
+        stepper_welle();
+    }
+}
+
+module stepper_welle () {
+    difference() {   
+            cylinder(d=6.5,h=71.5);
+            translate([6,0,0]) cube([6.5,6.5,71.5 *2], center = true);
+        }
+}
+
+module stepper () {
+    union () {
+        translate([-56.5 / 2, -56.5 / 2, 0]) union () {
+            difference () {
+                //Grundkörper
+                cube([56.5,56.5,50.5]);
+            
+                //Einrundungen
+                cylinder(h=45,r=9.5);
+                translate([56.5, 0,0]) cylinder(45,9.5,9.5);
+                translate([0, 56.5,0]) cylinder(45,9.5,9.5);
+                translate([56.5, 56.5,0]) cylinder(45,9.5,9.5);
+                
+                //Schrauben
+                translate([4,4,45]) cylinder(h=6,d=5.5);
+                translate([56.5-4,4,45]) cylinder(h=6,d=5.5);
+                translate([4,56.5-4,45]) cylinder(h=6,d=5.5);
+                translate([56.5-4,56.5-4,45]) cylinder(h=6,d=5.5);
+            }
+    
+            // Welle
+            translate([56.5 / 2, 56.5 / 2, 0]) union () {
+                stepper_welle();
+                translate([0,0,50.5]) cylinder(h=1.5, d=38);
+            }
+        }
+        translate([0,0,71.5-(10+3)]) stepper_zahnrad();
+    }
+}
+
+module large_gear () {
+    difference () {
+        cylinder(h = 3, d=gear_large_full_diameter);
+        spur_gear(modul=gear_modul, tooth_number=gear_tooth_number_large, width=3, bore=0);
+        cylinder(h = 3, d=(gear_large_full_diameter - 30));
+    }
+}
+
+// Stepper
+*translate([60,0,0]) stepper();
+
+//Brett unten
+*translate([0,0,-12]) brett ();
+
+// Top Gear
+*translate([0,0,71.5-3]) large_gear ();
+
+translate([0,10 /2,15/2]) rotate([90,0,0]) {
+    union() {
+        difference() {
+            cylinder(h=10, d=15);
+            cylinder(h=10, d=3);  
+        }
+        translate([0,0,-3]) cylinder(h=16, d=3-0.2);
+    }
+}