More tolerance tests, Single Action truss rod

CFTubes.scad

@@ -12,6 +12,11 @@ include <EllipticalNeck.scad>
 // Guitar_Scale_Length_mm = 610;  // millimetres, slightly over 24inch (609.6mm) Jaguar scale, should be fine for guitar and u-bass
 // assert(fret_scale_length(0) == 610);  // Make sure the function correctly uses our changed global
 
+shumbucker_h = 20.3;
+shumbucker_l = 23.1;
+shumbucker_w1 = 66.4;
+shumbucker_w2 = 82.9;  // 1.6mm in, a 2.0mm hole on each side
+
 // Philippians 4:8
 // Gideon (ShinKaiYaku07) 真実な, 尊ぶべき, 正しい, 清い, 愛すべき, 評判の良い, 徳とされる, 称賛に値する
 // ShinKaiYaku65 最後に、兄弟たち。すべての真実なこと、すべての誉れあること、すべての正しいこと、すべてのきよいこと、すべての愛すべきこと、すべての評判の良いこと、そのほか徳と言われること、称賛に値することがあるならば、そのようなことに心を留めなさい。
@@ -1081,17 +1086,19 @@ COLOURSCHEME_PETGHF_BLUE = [BAMBU_PETGHF_LAKE_BLUE, BAMBU_PETGHF_LAKE_BLUE, "",
 
 colour_scheme = COLOURSCHEME_ABSGF_CLOWNFISH;
 // colour_scheme = COLOURSCHEME_ABS_BLUE;
-color(colour_scheme[0]) rotate([90,0,0]) Steel6String(from_fret=15, to_fret=23, include_colours=[0]);
+// color(colour_scheme[0]) rotate([90,0,0]) Steel6String(from_fret=0, to_fret=23, include_colours=[0]);
-color(colour_scheme[1]) rotate([90,0,0]) Steel6String(from_fret=15, to_fret=23, include_colours=[1]);
+// color(colour_scheme[1]) rotate([90,0,0]) Steel6String(from_fret=0, to_fret=23, include_colours=[1]);
-color(colour_scheme[2]) rotate([90,0,0]) Steel6String(from_fret=15, to_fret=23, include_colours=[2]);
+// color(colour_scheme[2]) rotate([90,0,0]) Steel6String(from_fret=0, to_fret=23, include_colours=[2]);
-color(colour_scheme[3]) rotate([90,0,0]) Steel6String(from_fret=15, to_fret=23, include_colours=[3]);
+// color(colour_scheme[3]) rotate([90,0,0]) Steel6String(from_fret=0, to_fret=23, include_colours=[3]);
 // rotate([90,0,0]) Steel6String(include_colours=[0,1,2,3], reference=true);
 
-// TrussRod();
+// TrussRodSingleAction();
-// difference() {
+// translate([20, 0]) TrussRod();
-// 	l = 70;
+difference() {
-// 	w = 20;
+	l = 70;
-// 	extra = 5;
+	w = 20;
-// 	translate([-w/2, -extra, 1.6-w/2]) cube([w, l+extra, w]);
+	extra = 5;
+	translate([-w/2, -extra, 1.6-w/2]) cube([w, l+extra, w]);
 	// TrussRod(taper_points=[-extra, l], extra=true, tolerance = 0.24);
-// }
+	TrussRodSingleAction(taper_points=[-extra, l], extra=true, tolerance = 0.24);
+}

CFTubes/ABS.scad

@@ -1,2 +1,4 @@
 CF_Square_Width_tolerance = 0.4;  // Add to CF_Square_Width when making holes
 CF_Tube_OD_tolerance = 0.5;
+SS_Dowel_OD_tight = 5.25;  // 5.2 very tight on most layer settings, 5.25 slightly loose (ABS 4 perimeters, 24% gyroid infill)
+SS_Dowel_OD_loose = 5.3;  // 5.2 very tight on most layer settings, 5.25 slightly loose

CFTubes/common.scad

@@ -131,7 +131,7 @@ module CFSquareCutout2(v, block_y0, block_y1, tolerance = CF_Square_Width_tolera
 		}
 }
 
-module TrussRod(length = 630, tolerance = 0, taper_l = 1.5, taper_extra = 1.0, taper_points=[], extra=false) {
+module TrussRodGeneric(length, tolerance, stages, taper_l = 1.5, taper_extra = 1.0, taper_points=[], extra=false) {
 	$fn = 360;
 	epsilon = 0.00000001;
 	rot = [-90, 180, 0];
@@ -142,29 +142,7 @@ module TrussRod(length = 630, tolerance = 0, taper_l = 1.5, taper_extra = 1.0, t
 			translate([-w/2, h - d/2 - epsilon]) square([w, epsilon]);
 		}
 	}
-	// base profile
-	base_d = 6.0 + tolerance;
-	base_w = base_d;
-	base_h = 9.0 + tolerance;
 
-	// nut?
-	stage2_d = 7.05 + tolerance;
-	stage2_w = base_w;
-	stage2_h = base_h + (stage2_d - base_d);
-	stage2_l = 55 + tolerance;
-
-	// Turning end
-	stage3_d = 9.2 + tolerance;
-	stage3_w = stage3_d;
-	stage3_h = base_h + (stage3_d - base_d);
-	stage3_l = 35 + tolerance;
-
-	// Rod outline
-	stages = [  // Must be ascending order for later
-		[stage3_l, stage3_d, stage3_h, stage3_w],
-		[stage2_l, stage2_d, stage2_h, base_w],
-		[length, base_d, base_h, base_w],
-	];
 	for (s = stages) rotate(rot) linear_extrude(s[0]) squircle(s[1], s[2], s[3]);
 	for (i = [0:len(stages)-2]) {
 		s0 = stages[i];
@@ -194,3 +172,49 @@ module TrussRod(length = 630, tolerance = 0, taper_l = 1.5, taper_extra = 1.0, t
 		}
 	}
 }
+
+module TrussRod(length = 630, tolerance = 0, taper_l = 1.5, taper_extra = 1.0, taper_points=[], extra=false) {
+	// base profile
+	base_d = 6.0 + tolerance;
+	base_w = base_d;
+	base_h = 9.0 + tolerance;
+
+	// nut?
+	stage2_d = 7.05 + tolerance;
+	stage2_w = base_w;
+	stage2_h = base_h + (stage2_d - base_d);
+	stage2_l = 55 + tolerance;
+
+	// Turning end
+	stage3_d = 9.2 + tolerance;
+	stage3_w = stage3_d;
+	stage3_h = base_h + (stage3_d - base_d);
+	stage3_l = 35 + tolerance;
+
+	// Rod outline
+	stages = [  // Must be ascending order for later
+		[stage3_l, stage3_d, stage3_h, stage3_w],
+		[stage2_l, stage2_d, stage2_h, stage2_w],
+		[length, base_d, base_h, base_w],
+	];
+	TrussRodGeneric(length=length, tolerance=tolerance, stages=stages, taper_l=taper_l, taper_extra=taper_extra, taper_points=taper_points, extra=extra);
+}
+module TrussRodSingleAction(length = 460, tolerance = 0, taper_l = 1.5, taper_extra = 1.0, taper_points=[], extra=false) {
+	// base profile
+	base_d = 4.6 + tolerance;
+	base_w = 6.1 + tolerance;
+	base_h = 8.1 + tolerance;
+
+	// nut?
+	stage2_d = 7.0 + 0.2 + tolerance;
+	stage2_w = base_w;
+	stage2_h = base_h + (stage2_d - base_d);
+	stage2_l = 44 + tolerance;
+
+	// Rod outline
+	stages = [  // Must be ascending order for later
+		[stage2_l, stage2_d, stage2_h, stage2_w],
+		[length, base_d, base_h, base_w],
+	];
+	TrussRodGeneric(length=length, tolerance=tolerance, stages=stages, taper_l=taper_l, taper_extra=taper_extra, taper_points=taper_points, extra=extra);
+}

common.scad

@@ -63,7 +63,7 @@ module screw_hole_lobe(ID, OD, lobes=3, fn=90) {
 	}
 }
 
-module cylinder_beak(d, h, beak=0.5) {
+module cylinder_beak(d, h, beak=0.75) {
 	// A cylinder with a beak to take seams. This helps improve tolerances as seams often expand a little bit and ruin the fit.
 	cylinder(d=d, h=h);
 	// beak notch for seams

hole_tolerances.scad

@@ -0,0 +1,23 @@
+include <common.scad>
+base_diameter = 5.0;
+hole_step = 0.05;
+num_holes = 12;
+thickness = 15;
+engrave_depth = 0.6;
+hole_spacing = base_diameter*1.6;
+
+render() difference() {
+	cube([hole_spacing * num_holes + base_diameter,  base_diameter*2 + 10, thickness]);
+	// translate([1, 9, thickness-engrave_depth]) linear_extrude(engrave_depth)
+	// 	text(str("d=", base_diameter, "mm"), size=5);
+	$fn=72;
+	for (i=[0:num_holes-1]) {
+		d = base_diameter + i*hole_step;
+		translate([base_diameter + hole_spacing*i, base_diameter]) {
+			cylinder_beak(d, thickness);
+			translate([0, 5, thickness-engrave_depth]) linear_extrude(engrave_depth)
+				rotate(90) text(str(d), size=3, valign="center");
+		}
+	}
+}
+