first concept added

concept.scad

+include <MCAD/gears.scad>
+
+// geschwindigkeit
+TIME = $t*50;
+
+// rotationsrichtung
+ROTATESMALL = (TIME);
+ROTATEBIG = (TIME);
+
+// x-bewegung
+//ROTATESMALL = (-TIME);
+//ROTATEBIG = (TIME);
+
+// extractormotor rotiert
+//ROTATESMALL = (TIME);
+//ROTATEBIG = (TIME);
+
+
+
+
+SMALLROTATION = (ROTATESMALL*18);
+BIGROTATION = (ROTATEBIG*6);
+
+
+// haeh? das macht keinen sinn: (reicht aber fuer eine demo)
+MEDIUMROTATION = ((BIGROTATION/2)+(-SMALLROTATION/2))*1.5;
+FINALROTATION = (TIME - ((ROTATEBIG/2)+(-ROTATESMALL/2)))*9;
+
+
+module achse(spiel=0){
+    translate([0,0,-15]) cylinder(h=30,d=7+spiel,center=0);
+    }
+
+
+module stdrad(){
+    difference() {
+	linear_extrude(height = 2, center = false, convexity = 5,twist = 0)
+	gear(number_of_teeth=20,circular_pitch=200, diametral_pitch=10,pressure_angle=85, clearance = 0.1);
+	translate([0,0,-2]) cylinder(h=5,d=7,center=0);
+	for ( aussparung = [0 : 5] ) {
+	    rotate([0,0,60*aussparung]) translate([6.5,0,-1]) cylinder(h=4,d=4,center=0);
+	}
+    }
+}
+
+module kranz(teeth=25, height=5){
+    diameter = teeth * 1.3;
+    difference() {
+	cylinder(h=height,d=diameter,center=0);
+	translate([0,0,-0.5])
+	linear_extrude(height = height+1, center = false, convexity = 5,twist = 0) {
+	    gear(number_of_teeth=teeth,
+		circular_pitch=200, diametral_pitch=0,
+		pressure_angle=85, clearance = -1);
+	}}
+}
+
+module bandspanner(){
+    color("Gray") union() {
+	translate([0,0,3]) cylinder(h=1,d=5,center=true);
+	translate([0,0,0]) cylinder(h=5,d=4,center=true);
+	translate([0,0,-3]) cylinder(h=1,d=5,center=true);
+    }
+}
+
+rotate([90,90,0]) {
+
+    translate([-29,29,0.5]) bandspanner();
+    translate([-29,-29,0.5]) bandspanner();
+    translate([8,17,-8.5]) bandspanner();
+    translate([8,-17,-8.5]) bandspanner();
+
+
+    // gehaeuse
+    translate([0,0,-4.5]) union() {
+	difference() {
+	    union() {
+		cylinder(h=11,d=80,center=false);
+		translate([-28,-28,9]) {
+		    minkowski() {
+			cube([5,57,1],false);
+			cylinder(h=1,d=10,center=false);
+		    }}
+
+	    }
+	    translate([0,0,1]) cylinder(h=8,d=77,center=false);
+	    difference(){
+		union() {
+		    translate([33,0,5]) cube([40,80,15],true);
+		    translate([-33,0,1.5]) cube([40,80,15],true);
+		}
+		translate([0,0,0]) cylinder(h=1,d=30,center=0);
+	    }
+	    translate([0,0,-5]) cylinder(h=8,d=25,center=0);
+	    translate([0,0,5]) cylinder(h=8,d=8,center=0);
+	}
+
+   }
+
+
+    // antrieb inneres standardrad, muss in zwei teilen gedruckt werden !!(?)
+    color("CadetBlue") rotate([0,0,SMALLROTATION]) difference() {
+	union() {
+	    stdrad();
+	    translate([0,0,-5]) cylinder(h=6,d=19,center=0);
+	    translate([0,0,-5])
+	    difference() {
+		translate([0,0,-7]) cylinder(h=7,d=30,center=0);
+		translate([0,0,-6]) kranz(teeth=24, height=5);
+	    }
+	}
+	achse(spiel=0.5);
+    }
+
+    // antrieb auesseres stdrad
+    color("CadetBlue") rotate([0,0,BIGROTATION]) difference() {
+	difference() {
+	    // aeusserer kranz
+	    translate([0,0,0.-3]) {
+		difference() {
+		    translate([0,0,0]) {
+			cylinder(h=7,d=75,center=0);
+		    }
+		    translate([0,0,2.5]) rotate([0,0,9]) {
+			linear_extrude(height = 3, center = false, convexity = 2,twist = 0) {
+			    gear(number_of_teeth=60,
+				circular_pitch=200, diametral_pitch=0,
+				pressure_angle=85, clearance = 0.1);
+			}}
+		}
+
+	    }
+	    // zahnriemen auf aeusserem kranz
+	    translate([0,0,-2]) kranz(teeth=64, height=5);
+	}
+
+	// innerer leerraum
+	translate([0,0,-3.5]) cylinder(h=8,d=64,center=0);
+    }
+
+    // aufhängung mit extraktorachse
+    rotate([0,0,FINALROTATION]){
+	color("RosyBrown") union() {
+	    translate([0,0,2.5]) {
+	    achse(spiel=0);
+	    difference() {
+		cylinder(h=1.5,d=60,center=0);
+		for ( aussparung = [0 : 3] ) {
+			rotate([0,0,120*aussparung]) translate([0,15,-0.5]) cylinder(h=5,d=20,center=0);
+		    }
+	    }
+	    for ( achse = [0 : 3] ) {
+		rotate([0,0,120*achse]) translate([20,10,-2.6]) cylinder(h=3,d=6.7,center=0);
+	    }
+	}
+	}
+
+	// drei mittlere raeder
+	for ( radnummer = [0 : 3] ) {
+	    rotate([0,0,120*radnummer]) translate([20,10]) rotate([0,0,9+MEDIUMROTATION]) {
+		stdrad();
+	    }
+	}
+    }
+}