poging om autmatisch betere onderdelen voor frame te laten genereren

Frame_vertex_huxley/vertex_foot.scad

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+//------------------------------------------------------------
+// Huxley vertex feet for higher z and more clearance 
+//
+// http://www.thingiverse.com/wardwouts
+// 
+//
+//------------------------------------------------------------
+// Inspired by:
+// http://www.thingiverse.com/thing:19160 -- eMaker Huxley Higher Z (burtyb)
+// http://www.thingiverse.com/thing:28045 -- eMaker Huxley Extended Vertex Parts (Snille)
+
+// Length measured between the bottom feet (207 is default for emaker huxley)
+baserodlength=207;
+// Length measure between top vertex and feet (207 is default for emaker huxley)
+siderodlength=280;
+
+partstyle = "top"; // [top,bottom]
+
+// size of the M6 holes
+M6 = 6.5;
+// thickness of the part
+thickness = 14;
+// distance between tear and hole
+teardist = 2;
+// 80 for pretty curves; 16 for quick ones
+FN=80;
+
+zaxisliftrod = sqrt(pow(siderodlength,2) - pow((baserodlength/2),2));
+
+echo ("===========================================");
+echo ("Lengths measured between the parts");
+echo (str("Base rod length: ", baserodlength));
+echo (str("Side rod length: ", siderodlength));
+echo ("===========================================");
+echo ("Shopping list (approximate size):");
+echo (str("2 x ", baserodlength + 50 ,"mm M6 threaded bar for the base rods"));
+echo (str("4 x ", siderodlength + 50 ,"mm M6 threaded bar for the side rods"));
+echo (str("2 x ", round(zaxisliftrod + 72) ,"mm x 6mm smooth bar for the z-axis"));
+echo (str("2 x ", round(zaxisliftrod + 22) ,"mm M5 threaded bar smooth bar for the z-axis"));
+echo ("===========================================");
+
+toprodangle = asin( (baserodlength/2) / siderodlength )  ;
+//echo ("Top rod angle: ", toprodangle);
+bottomrodangle = acos((baserodlength/2) / siderodlength ) ;
+//echo ("Bottom rod angle: ", bottomrodangle);
+
+distance = 38; // distance between the original holes
+
+// http://www.hhofstede.nl/modules/soscastoa.htm
+
+barlength = (distance / 2) / cos(30) ;
+//echo("Length of a single bar piece: ", barlength);
+
+module bar(){
+	// bar is een balkje met afgeronde uiteinden en 2 gaten
+	// + een tear op teardist van een van de gaten
+	difference(){
+		union(){
+			cylinder(h=thickness, r=thickness/2, $fn=FN);
+			translate([0,-thickness/2,0]){
+				cube([barlength,thickness,thickness]);
+			}
+			translate([barlength,0,0]){
+				cylinder(h=thickness, r=thickness/2, $fn=FN);
+			}
+		}
+		union(){
+			translate([0,0,-thickness/2]){
+				cylinder(h=thickness*2, r=M6/2, $fn=FN);
+			}
+			translate([barlength,0,0]){
+				translate([0,0,-thickness/2]){
+					cylinder(h=thickness*2, r=M6/2, $fn=FN);
+				}
+			}
+				translate([teardist+M6,-thickness,thickness/2]){
+					rotate([0,0,90]){
+						tear(thickness*2, M6/2);
+					}
+				}
+		}
+	}
+}
+
+module foot(){
+	// draw a foot which is just a bunch of cubes
+	// side 1
+	translate([-14,3,0]){ cube([16,2,thickness]); }
+	// side 2
+	translate([-14,-5,0]){ cube([16,2,thickness]); }
+	// bottom
+	translate([-16,-6,0]){ cube([2,12,thickness]); }
+	//top
+	translate([-8,-4,0]){ cube([4,8,thickness]); }
+}
+
+module mainbody(){
+	// in dit deel is de standaard hoek van het onderdeel altijd 120 graden
+	// dit omdat het standaard frame altijd hoeken van 60 graden heeft
+	// omdat de afstand tussen de 2 standaard gaten altijd de contante
+	// 'distance' afstand is roteer ik 30 graden (90 - 60)
+	// en wandel ik 'distance' die richting in vervolgens teken ik een bar
+	// 90 + 120 - 60 = 150
+	// (30 + 150 = 180 dus zo wordt ie omgekeerd)
+	// dit allemaal niet erg parametrisch, want het moet gewoon
+	// in het basis frame passen
+	bar();
+	footextend();
+	rotate([0,0,-30]){
+		translate([distance, 0,0 ]){
+			rotate([0,0,150]){
+				bar();
+				extend();
+			}
+		}
+	}
+}
+
+module extend(){
+	// we staan al goed voor de hoek van 60, dus alleen verschil
+	// verder roteren
+	if ( partstyle == "bottom" ){
+		rotate([0,0,60-bottomrodangle]){
+			translate([-barlength,0,0]){
+				bar();
+			}
+		}
+	}
+	if ( partstyle == "top") {
+		rotate([0,0,30-toprodangle]){
+			translate([-barlength,0,0]){
+				bar();
+			}
+		}
+	}
+}
+
+module footextend(){
+	if ( partstyle == "top") {
+			rotate([0,0,-30+toprodangle]){
+			translate([-barlength,0,0]){
+				bar();
+			}
+		}
+	}
+	if ( partstyle == "bottom" ){
+		foot();
+	}
+}
+
+module tear(height,radius){
+	rotate([90,0,90]){
+		cylinder(h=height,r=radius,$fn=FN);
+		rotate([0,0,45]){
+			cube([radius, radius, height]);
+		}
+	}
+}
+
+mainbody();