Common.scad assembled from other scripts
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/*
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Triangles.scad
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Author: Tim Koopman
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https://github.com/tkoopman/Delta-Diamond/blob/master/OpenSCAD/Triangles.scad
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angleCA
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/|\
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a / H \ c
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/ | \
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angleAB ------- angleBC
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b
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Standard Parameters
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center: true/false
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If true same as centerXYZ = [true, true, true]
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centerXYZ: Vector of 3 true/false values [CenterX, CenterY, CenterZ]
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center must be left undef
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height: The 3D height of the Triangle. Ignored if heights defined
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heights: Vector of 3 height values heights @ [angleAB, angleBC, angleCA]
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If CenterZ is true each height will be centered individually, this means
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the shape will be different depending on CenterZ. Most times you will want
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CenterZ to be true to get the shape most people want.
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*/
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/*
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Triangle
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a: Length of side a
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b: Length of side b
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angle: angle at point angleAB
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*/
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module Triangle(
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a, b, angle, height=1, heights=undef,
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center=undef, centerXYZ=[false,false,false])
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{
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// Calculate Heights at each point
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heightAB = ((heights==undef) ? height : heights[0])/2;
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heightBC = ((heights==undef) ? height : heights[1])/2;
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heightCA = ((heights==undef) ? height : heights[2])/2;
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centerZ = (center || (center==undef && centerXYZ[2]))?0:max(heightAB,heightBC,heightCA);
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// Calculate Offsets for centering
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offsetX = (center || (center==undef && centerXYZ[0]))?((cos(angle)*a)+b)/3:0;
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offsetY = (center || (center==undef && centerXYZ[1]))?(sin(angle)*a)/3:0;
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pointAB1 = [-offsetX,-offsetY, centerZ-heightAB];
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pointAB2 = [-offsetX,-offsetY, centerZ+heightAB];
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pointBC1 = [b-offsetX,-offsetY, centerZ-heightBC];
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pointBC2 = [b-offsetX,-offsetY, centerZ+heightBC];
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pointCA1 = [(cos(angle)*a)-offsetX,(sin(angle)*a)-offsetY, centerZ-heightCA];
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pointCA2 = [(cos(angle)*a)-offsetX,(sin(angle)*a)-offsetY, centerZ+heightCA];
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polyhedron(
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points=[ pointAB1, pointBC1, pointCA1,
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pointAB2, pointBC2, pointCA2 ],
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triangles=[
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[0, 1, 2],
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[3, 5, 4],
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[0, 3, 1],
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[1, 3, 4],
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[1, 4, 2],
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[2, 4, 5],
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[2, 5, 0],
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[0, 5, 3] ] );
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}
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/*
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Isosceles Triangle
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Exactly 2 of the following paramaters must be defined.
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If all 3 defined H will be ignored.
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b: length of side b
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angle: angle at points angleAB & angleBC.
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*/
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module Isosceles_Triangle(
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b, angle, H=undef, height=1, heights=undef,
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center=undef, centerXYZ=[true, false, false])
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{
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valid = (angle!=undef)?((angle < 90) && (b!=undef||H!=undef)) : (b!=undef&&H!=undef);
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ANGLE = (angle!=undef) ? angle : atan(H / (b/2));
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a = (b==undef)?(H/sin((180-(angle*2))/2)) :
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(b / cos(ANGLE))/2;
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B = (b==undef)? (cos(angle)*a)*2:b;
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if (valid)
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{
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Triangle(a=a, b=B, angle=ANGLE, height=height, heights=heights,
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center=center, centerXYZ=centerXYZ);
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} else {
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echo("Invalid Isosceles_Triangle. Must specify any 2 of b, angle and H, and if angle used angle must be less than 90");
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}
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}
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/*
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Right Angled Triangle
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Create a Right Angled Triangle where the hypotenuse will be calculated.
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a| \
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----
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b
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a: length of side a
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b: length of side b
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*/
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module Right_Angled_Triangle(
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a, b, height=1, heights=undef,
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center=undef, centerXYZ=[false, false, false])
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{
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Triangle(a=a, b=b, angle=90, height=height, heights=heights,
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center=center, centerXYZ=centerXYZ);
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}
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/*
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Wedge
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Is same as Right Angled Triangle with 2 different heights, and rotated.
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Good for creating support structures.
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*/
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module Wedge(a, b, w1, w2)
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{
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rotate([90,0,0])
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Right_Angled_Triangle(a, b, heights=[w1, w2, w1], centerXYZ=[false, false, true]);
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}
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/*
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Equilateral Triangle
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Create a Equilateral Triangle.
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l: Length of all sides (a, b & c)
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H: Triangle size will be based on the this 2D height
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When using H, l is ignored.
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*/
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module Equilateral_Triangle(
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l=10, H=undef, height=1, heights=undef,
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center=undef, centerXYZ=[true,false,false])
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{
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L = (H==undef)?l:H/sin(60);
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Triangle(a=L,b=L,angle=60,height=height, heights=heights,
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center=center, centerXYZ=centerXYZ);
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}
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/*
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Trapezoid
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Create a Basic Trapezoid (Based on Isosceles_Triangle)
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d
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/----\
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/ | \
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a / H \ c
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/ | \
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angle ------------ angle
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b
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b: Length of side b
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angle: Angle at points angleAB & angleBC
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H: The 2D height at which the triangle should be cut to create the trapezoid
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heights: If vector of size 3 (Standard for triangles) both cd & da will be the same height, if vector have 4 values [ab,bc,cd,da] than each point can have different heights.
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*/
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module Trapezoid(
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b, angle=60, H, height=1, heights=undef,
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center=undef, centerXYZ=[true,false,false])
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{
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validAngle = (angle < 90);
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adX = H / tan(angle);
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// Calculate Heights at each point
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heightAB = ((heights==undef) ? height : heights[0])/2;
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heightBC = ((heights==undef) ? height : heights[1])/2;
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heightCD = ((heights==undef) ? height : heights[2])/2;
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heightDA = ((heights==undef) ? height : ((len(heights) > 3)?heights[3]:heights[2]))/2;
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// Centers
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centerX = (center || (center==undef && centerXYZ[0]))?0:b/2;
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centerY = (center || (center==undef && centerXYZ[1]))?0:H/2;
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centerZ = (center || (center==undef && centerXYZ[2]))?0:max(heightAB,heightBC,heightCD,heightDA);
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// Points
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y = H/2;
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bx = b/2;
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dx = (b-(adX*2))/2;
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pointAB1 = [centerX-bx, centerY-y, centerZ-heightAB];
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pointAB2 = [centerX-bx, centerY-y, centerZ+heightAB];
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pointBC1 = [centerX+bx, centerY-y, centerZ-heightBC];
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pointBC2 = [centerX+bx, centerY-y, centerZ+heightBC];
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pointCD1 = [centerX+dx, centerY+y, centerZ-heightCD];
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pointCD2 = [centerX+dx, centerY+y, centerZ+heightCD];
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pointDA1 = [centerX-dx, centerY+y, centerZ-heightDA];
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pointDA2 = [centerX-dx, centerY+y, centerZ+heightDA];
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validH = (adX < b/2);
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if (validAngle && validH)
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{
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polyhedron(
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points=[ pointAB1, pointBC1, pointCD1, pointDA1,
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pointAB2, pointBC2, pointCD2, pointDA2 ],
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triangles=[
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[0, 1, 2],
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[0, 2, 3],
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[4, 6, 5],
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[4, 7, 6],
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[0, 4, 1],
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[1, 4, 5],
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[1, 5, 2],
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[2, 5, 6],
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[2, 6, 3],
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[3, 6, 7],
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[3, 7, 0],
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[0, 7, 4] ] );
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} else {
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if (!validAngle) echo("Trapezoid invalid, angle must be less than 90");
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else echo("Trapezoid invalid, H is larger than triangle");
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}
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}
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@ -0,0 +1,214 @@
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IN = 25.4;
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MM = 1;
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function R(d) = d / 2.0;
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function IN2MM(in) = in * IN;
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function MM2IN(mm) = mm / IN;
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module hex (diag = 10, h = 1) {
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cylinder(r = diag / 2, h = h, center = true, $fn = 6);
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}
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module tube(o = 1, i = 0, h = 1, center = false, $fn = 12) {
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$fn = $fn;
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union () {
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difference () {
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cylinder(r = o, h = h, center = center);
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cylinder(r = i, h = h, center = center);
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}
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}
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}
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module m3_nut (H = 5) {
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cylinder(r=R(6.6), h=H, center=true, $fn=6);
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}
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module rounded_cube (cube_arr = [1, 1, 1], d = 0, center = false) {
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off_x = 0;
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off_y = 0;
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r = d/2;
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union () {
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cube([cube_arr[0] - d, cube_arr[1], cube_arr[2]], center = center);
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cube([cube_arr[0], cube_arr[1] - d, cube_arr[2]], center = center);
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translate ([1 * (cube_arr[0] / 2) - r , 1 * (cube_arr[1] / 2)- r, 0]) cylinder(r = r, h = cube_arr[2], center = center);
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translate ([-1 * (cube_arr[0] / 2) + r, -1 * (cube_arr[1] / 2) + r, 0]) cylinder(r = r, h = cube_arr[2], center = center);
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translate ([1 * (cube_arr[0] / 2) - r, -1 * (cube_arr[1] / 2) + r, 0]) cylinder(r = r, h = cube_arr[2], center = center);
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translate ([-1 * (cube_arr[0] / 2) + r, 1 * (cube_arr[1] / 2)- r, 0]) cylinder(r = r, h = cube_arr[2], center = center);
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}
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}
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module c_battery () {
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/* C Cell battery, 26.1 × 50 */
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x = 26.1;
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x_fuzz = .3;
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y = 50;
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y_fuzz = 2;
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cylinder(r = (x + x_fuzz) / 2, h = y + y_fuzz, center = true);
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}
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module sub_c_battery () {
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/* Sub C Cell battery, 22.2 × 42.9 */
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x = 22.2;
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x_fuzz = .3;
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y = 42.9;
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y_fuzz = 2;
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cylinder(r = (x + x_fuzz) / 2, h = y + y_fuzz, center = true);
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}
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module hex (r = 1, h = 1, center = false) {
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cylinder(r = r, h = h, center = center, $fn = 6);
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}
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module cone_45 (d = 1, center = false) {
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cylinder(r1 = d/2, r2 = 0, h = d, center = center);
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}
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module decoys (d = 10, z = 0, number = 4, cube_size = 4, debug = false) {
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for (i = [0: number]) {
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rotate([0, 0, (360/number) * i]) translate([d, 0, z]) cube([cube_size, cube_size, cube_size], center = true);
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if (debug && i == 0) {
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rotate([0, 0, (360/number) * i]) translate([d, 0, z]) cube([cube_size * 5, cube_size* 5, cube_size], center = true);
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}
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}
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}
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//////////////////////////////////////////////////////////////////////////////////////////////
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// Paraboloid module for OpenScad
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//
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// Copyright (C) 2013 Lochner, Juergen
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// http://www.thingiverse.com/Ablapo/designs
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//
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// This program is free software. It is
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// licensed under the Attribution - Creative Commons license.
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// http://creativecommons.org/licenses/by/3.0/
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//////////////////////////////////////////////////////////////////////////////////////////////
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module paraboloid (y=10, f=5, rfa=0, fc=1, detail=44){
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// y = height of paraboloid
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// f = focus distance
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// fc : 1 = center paraboloid in focus point(x=0, y=f); 0 = center paraboloid on top (x=0, y=0)
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// rfa = radius of the focus area : 0 = point focus
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// detail = $fn of cone
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hi = (y+2*f)/sqrt(2); // height and radius of the cone -> alpha = 45° -> sin(45°)=1/sqrt(2)
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x =2*f*sqrt(y/f); // x = half size of parabola
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translate([0,0,-f*fc]) // center on focus
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rotate_extrude(convexity = 10,$fn=detail ) // extrude paraboild
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translate([rfa,0,0]) // translate for fokus area
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difference(){
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union(){ // adding square for focal area
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projection(cut = true) // reduce from 3D cone to 2D parabola
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translate([0,0,f*2]) rotate([45,0,0]) // rotate cone 45° and translate for cutting
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translate([0,0,-hi/2])cylinder(h= hi, r1=hi, r2=0, center=true, $fn=detail); // center cone on tip
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translate([-(rfa+x ),0]) square ([rfa+x , y ]); // focal area square
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}
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translate([-(2*rfa+x ), -1/2]) square ([rfa+x ,y +1] ); // cut of half at rotation center
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}
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}
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/*
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// Height of trapazoid
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height = 19;
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// Width of top cube
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top_x = 30;
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// Length of top cube
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top_y = 34;
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// Width of bottom cube
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bottom_x = 45;
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// Length of bottom cube
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bottom_y = 65;
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wall_thickness = 2;
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*/
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module trap_cube(height = 19, top_x = 30, top_y = 34, bottom_x = 45, bottom_y = 65, wall_thickness = 2) {
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difference(){
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hull(){
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translate([0,0,height])
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cube([top_x, top_y, 0.1], center=true);
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cube([bottom_x, bottom_y, 0.1], center=true);
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}
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hull(){
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translate([0,0,height])
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cube([top_x - wall_thickness, top_y - wall_thickness, 0.1], center=true);
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cube([bottom_x - wall_thickness, bottom_y - wall_thickness, 0.1], center=true);
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}
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}
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}
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||||||
|
module NEMA17_motor_shaft (L = 22.75) {
|
||||||
|
//shaft
|
||||||
|
difference () {
|
||||||
|
cylinder(r = R(5), h = L, center = true, $fn = 30);
|
||||||
|
translate([0, 4.5, 4.7]) cube([5, 5, L+1], center = true);
|
||||||
|
}
|
||||||
|
}
|
||||||
|
|
||||||
|
//NEMA17 Stepper
|
||||||
|
module NEMA17 ( H = 33 ) { //alt = 47.5
|
||||||
|
difference () {
|
||||||
|
cube([42, 42, H], center = true);
|
||||||
|
for (i = [0 : 3]) {
|
||||||
|
rotate([0, 0, (i * 90) + 45]) translate([29.7, 0, 0]) cube([5.5, 5.5, H + 1], center = true);
|
||||||
|
}
|
||||||
|
translate([31/2, 31/2, (H/2)-1.9]) cylinder(r = R(3), h = 4, center = true, $fn=30);
|
||||||
|
translate([-31/2, 31/2, (H/2)-1.9]) cylinder(r = R(3), h = 4, center = true, $fn=30);
|
||||||
|
translate([31/2, -31/2, (H/2)-1.9]) cylinder(r = R(3), h = 4, center = true, $fn=30);
|
||||||
|
translate([-31/2, -31/2, (H/2)-1.9]) cylinder(r = R(3), h = 4, center = true, $fn=30);
|
||||||
|
}
|
||||||
|
//pad
|
||||||
|
translate([0, 0, (H/2) + (1.9/2)]) {
|
||||||
|
cylinder(r = R(22), h = 1.9, center = true, $fn = 100);
|
||||||
|
}
|
||||||
|
//shaft
|
||||||
|
translate([0, 0, (H/2) + (22.75/2)]) {
|
||||||
|
NEMA17_motor_shaft();
|
||||||
|
}
|
||||||
|
}
|
||||||
|
|
||||||
|
module geared_motor_shaft () {
|
||||||
|
MOTOR_SHAFT_D = 6;
|
||||||
|
MOTOR_SHAFT_H = 16;
|
||||||
|
MOTOR_SHAFT_HOBBLE = 1;
|
||||||
|
difference () {
|
||||||
|
cylinder(r = R(MOTOR_SHAFT_D), h = MOTOR_SHAFT_H, center = true, $fn = 60);
|
||||||
|
translate([MOTOR_SHAFT_D - MOTOR_SHAFT_HOBBLE, 0, 0]) cube([MOTOR_SHAFT_D, MOTOR_SHAFT_D, MOTOR_SHAFT_H + 1], center = true);
|
||||||
|
}
|
||||||
|
}
|
||||||
|
|
||||||
|
//Geartisan Worm Gear Motor - JSX40-370
|
||||||
|
module geared_motor () {
|
||||||
|
MOTOR_MOUNT_X = 32.5;
|
||||||
|
MOTOR_MOUNT_Y = 17.5;
|
||||||
|
|
||||||
|
module motor_mount_pad (D, Z) {
|
||||||
|
difference () {
|
||||||
|
cylinder(r = R(D), h = Z, center = true, $fn = 40);
|
||||||
|
//bolt void
|
||||||
|
cylinder(r = R(2.5), h = Z + 1, center = true, $fn = 40);
|
||||||
|
}
|
||||||
|
}
|
||||||
|
|
||||||
|
module motor_mounts () {
|
||||||
|
Z = 1.5;
|
||||||
|
D = 7.5;
|
||||||
|
|
||||||
|
translate([MOTOR_MOUNT_X / 2, MOTOR_MOUNT_Y / 2, 0]) motor_mount_pad(D, Z);
|
||||||
|
translate([-MOTOR_MOUNT_X / 2, MOTOR_MOUNT_Y / 2, 0]) motor_mount_pad(D, Z);
|
||||||
|
translate([MOTOR_MOUNT_X / 2, -MOTOR_MOUNT_Y / 2, 0]) motor_mount_pad(D, Z);
|
||||||
|
translate([-MOTOR_MOUNT_X / 2, -MOTOR_MOUNT_Y / 2, 0]) motor_mount_pad(D, Z);
|
||||||
|
}
|
||||||
|
|
||||||
|
cube([46, 32, 21], center = true);
|
||||||
|
translate([(46 / 2) + (30 / 2), 0, 1.5]) rotate([0, 90, 0]) cylinder(r = 24 / 2, h = 30, center = true, $fn = 80);
|
||||||
|
translate([-(46 / 2) + 14.5, 0, -18.5]) rotate([0, 0, 90]) geared_motor_shaft();
|
||||||
|
//pad
|
||||||
|
translate([-(46 / 2) + 14.5, 0, -(1 / 2) - 10.5]) cylinder(r = 13 / 2, h = 1, center = true, $fn = 60);
|
||||||
|
//mount pads
|
||||||
|
translate([-0.5, 0, -(1.5 / 2) - 10.5]) motor_mounts();
|
||||||
|
}
|
||||||
|
|
@ -0,0 +1,150 @@
|
||||||
|
//Spiral Notes
|
||||||
|
//-------------------------------------------------------------------
|
||||||
|
//Height = center to center height of the end spheres which form the spirals. Ends will need to be flattened by the user as desired. Actual height of the rendering is Height+2*baseRadius
|
||||||
|
//Radius = the maximum distance from the axis of the spiral (the z axis) to the center of the sphere(s) forming the spiral
|
||||||
|
//baseRadius = cross sectional radius of the spiral
|
||||||
|
//frequency = the number of complete revolutions about the axis made by the spiral, whole numbers will result in spirals whose tops end directly above their bases
|
||||||
|
//resolution = integer number of spheres, not to be confused with $fn. The greater the number of spheres, the smoother the spiral will be (also longer render times!). Recommended that this number be 8*frequency or greater.
|
||||||
|
//numSpirals = integer number of spirals used in the spiralMulti modules spaced evenly around the axis (3 spirals are spaced 120 degrees apart, 4 spirals: 90 degrees apart, etc.)
|
||||||
|
|
||||||
|
//Instructions
|
||||||
|
//------------------------------------------------------------------
|
||||||
|
//1. Place spiral.scad in the "libraries" folder of your openscad installation. Find the libraries folder by File -> Show Library Folder...
|
||||||
|
//2. Then create a new or open one of your existing scad files and include spiral.scad with the following code:
|
||||||
|
//use<spiral.scad>;
|
||||||
|
//3. Then call the modules in your files with code similar to the following:
|
||||||
|
//spiral(20,20,3,1,25);
|
||||||
|
//spiralCone(20,20,3,1,25);
|
||||||
|
//spiralEllipse(20,20,3,1,25);
|
||||||
|
//spiralMulti(20,20,3,1,25,3);
|
||||||
|
//spiralMultiCone(20,20,3,1,25,3);
|
||||||
|
//spiralMultiEllipse(40,60,3,1,32,3);
|
||||||
|
|
||||||
|
//-------------------------------------------------------------
|
||||||
|
//simple spiral
|
||||||
|
module spiral (height = 20, Radius = 20, baseRadius = 3, frequency = 1, resolution = 25, $fn=50) {
|
||||||
|
union(){
|
||||||
|
translate ([0,0,-(height/2)]) {
|
||||||
|
for(i=[0:resolution-2]){
|
||||||
|
hull(){
|
||||||
|
rotate ([0,0,frequency*360/(resolution-1)*i]) translate ([Radius,0,i*height/(resolution-1)]) sphere(r=baseRadius, center=true);
|
||||||
|
rotate ([0,0,frequency*360/(resolution-1)*(i+1)]) translate ([Radius,0,(i+1)*height/(resolution-1)]) sphere(r=baseRadius,center=true);
|
||||||
|
}
|
||||||
|
}
|
||||||
|
}
|
||||||
|
}
|
||||||
|
}
|
||||||
|
|
||||||
|
//cone spiral
|
||||||
|
module spiralCone(height=20,Radius=20,baseRadius=3,frequency=1,resolution=25, $fn=50) {
|
||||||
|
union(){
|
||||||
|
translate ([0,0,-(height/2)]) {
|
||||||
|
for(i=[0:resolution-2]){
|
||||||
|
hull(){
|
||||||
|
rotate ([0,0,frequency*360/(resolution-1)*i]) translate ([Radius-(i-1)*Radius/resolution,0,i*height/(resolution-1)]) sphere(r=baseRadius, center=true);
|
||||||
|
rotate ([0,0,frequency*360/(resolution-1)*(i+1)]) translate ([Radius-i*Radius/resolution,0,(i+1)*height/(resolution-1)]) sphere(r=baseRadius,center=true);
|
||||||
|
}
|
||||||
|
}
|
||||||
|
}
|
||||||
|
}
|
||||||
|
}
|
||||||
|
|
||||||
|
//ellipse spiral
|
||||||
|
module spiralEllipse(height=20,Radius=20,baseRadius=3,frequency=1,resolution=25, $fn=50) {
|
||||||
|
union(){
|
||||||
|
translate ([0,0,-(height/2)]) {
|
||||||
|
for(i=[0:resolution-2]){
|
||||||
|
hull(){
|
||||||
|
rotate ([0,0,frequency*360/(resolution-1)*i]) translate ([Radius*sqrt(1-(i/(resolution-1)*(i/(resolution-1)))),0,i*height/(resolution-1)]) sphere(r=baseRadius, center=true);
|
||||||
|
rotate ([0,0,frequency*360/(resolution-1)*(i+1)]) translate ([Radius*sqrt(1-((i+1)/(resolution-1)*((i+1)/(resolution-1)))),0,(i+1)*height/(resolution-1)]) sphere(r=baseRadius,center=true);
|
||||||
|
}
|
||||||
|
}
|
||||||
|
}
|
||||||
|
}
|
||||||
|
}
|
||||||
|
|
||||||
|
// Multiple spirals arranged radially around the axis
|
||||||
|
module spiralMulti(height=20,Radius=20,baseRadius=3,frequency=1,resolution=25,numSpirals=3,$fn=50) {
|
||||||
|
shiftAngle=360/numSpirals;
|
||||||
|
for(total=[0:numSpirals-1]) {
|
||||||
|
union(){
|
||||||
|
translate ([0,0,-(height/2)]) {
|
||||||
|
for(i=[0:resolution-2]){
|
||||||
|
hull(){
|
||||||
|
rotate ([0,0,frequency*360/(resolution-1)*i+shiftAngle*total]) translate ([Radius,0,i*height/(resolution-1)]) sphere(r=baseRadius, center=true);
|
||||||
|
rotate ([0,0,frequency*360/(resolution-1)*(i+1)+shiftAngle*total]) translate ([Radius,0,(i+1)*height/(resolution-1)]) sphere(r=baseRadius,center=true);
|
||||||
|
}
|
||||||
|
}
|
||||||
|
}
|
||||||
|
}
|
||||||
|
}
|
||||||
|
}
|
||||||
|
|
||||||
|
// Multiple spirals arranged radially around the axis tapering in towards the axis
|
||||||
|
module spiralMultiCone(height=20,Radius=20,baseRadius=3,frequency=1,resolution=25,numSpirals=3,$fn=50) {
|
||||||
|
shiftAngle=360/numSpirals;
|
||||||
|
for(total=[0:numSpirals-1]) {
|
||||||
|
union(){
|
||||||
|
translate ([0,0,-(height/2)]) {
|
||||||
|
for(i=[0:resolution-2]){
|
||||||
|
hull(){
|
||||||
|
rotate ([0,0,frequency*360/(resolution-1)*i+shiftAngle*total]) translate ([Radius-(i-1)*Radius/resolution,0,i*height/(resolution-1)]) sphere(r=baseRadius, center=true);
|
||||||
|
rotate ([0,0,frequency*360/(resolution-1)*(i+1)+shiftAngle*total]) translate ([Radius-i*Radius/resolution,0,(i+1)*height/(resolution-1)]) sphere(r=baseRadius,center=true);
|
||||||
|
}
|
||||||
|
}
|
||||||
|
}
|
||||||
|
}
|
||||||
|
}
|
||||||
|
}
|
||||||
|
|
||||||
|
//multiple ellipse spiral
|
||||||
|
module spiralMultiEllipse(height=20,Radius=20,baseRadius=3,frequency=1,resolution=25,numSpirals=3,$fn=50) {
|
||||||
|
shiftAngle=360/numSpirals;
|
||||||
|
for(total=[0:numSpirals-1]) {
|
||||||
|
union(){
|
||||||
|
translate ([0,0,-(height/2)]) {
|
||||||
|
for(i=[0:resolution-2]){
|
||||||
|
hull(){
|
||||||
|
rotate ([0,0,frequency*360/(resolution-1)*i+shiftAngle*total]) translate ([Radius*sqrt(1-(i/(resolution-1)*(i/(resolution-1)))),0,i*height/(resolution-1)]) sphere(r=baseRadius, center=true);
|
||||||
|
rotate ([0,0,frequency*360/(resolution-1)*(i+1)+shiftAngle*total]) translate ([Radius*sqrt(1-((i+1)/(resolution-1)*((i+1)/(resolution-1)))),0,(i+1)*height/(resolution-1)]) sphere(r=baseRadius,center=true);
|
||||||
|
}
|
||||||
|
}
|
||||||
|
}
|
||||||
|
}
|
||||||
|
}
|
||||||
|
}
|
||||||
|
|
||||||
|
//Alternate approach to spiral generation
|
||||||
|
|
||||||
|
module spiral_alt (START_D = 10, SPACING = 5, THICKNESS = 2, H = 10, SPIRALS = 39) {
|
||||||
|
$fn = 60;
|
||||||
|
START_R = START_D / 2;
|
||||||
|
union () {
|
||||||
|
for (i = [0 : $fn]) {
|
||||||
|
rotate ([0, 0, i * (360 / $fn)]) {
|
||||||
|
for (x = [0: (SPIRALS - 1)]) {
|
||||||
|
spiral_facet(i, x, START_R, SPACING, THICKNESS, H);
|
||||||
|
}
|
||||||
|
}
|
||||||
|
}
|
||||||
|
}
|
||||||
|
}
|
||||||
|
|
||||||
|
module spiral_facet (i, x, START_R, SPACING, W, H) {
|
||||||
|
STEP_SIZE = ((SPACING + W) / $fn);
|
||||||
|
|
||||||
|
STEP_OFFSET = i * STEP_SIZE;
|
||||||
|
SPIRAL_START_OFFSET = (x * (SPACING + W));
|
||||||
|
|
||||||
|
ACTUAL_R = START_R + SPIRAL_START_OFFSET + STEP_OFFSET;
|
||||||
|
L = 2 * (ACTUAL_R * tan((360 / $fn) / 2));
|
||||||
|
ANGLE = -atan( STEP_SIZE / (L / 2) ) / 2;
|
||||||
|
OFFSET = START_R - (W / 2) + SPIRAL_START_OFFSET + STEP_OFFSET;
|
||||||
|
|
||||||
|
translate ([OFFSET, 0, - H / 2]) {
|
||||||
|
rotate ([0, 0, ANGLE]) {
|
||||||
|
cube([W, L, H], center=true);
|
||||||
|
//TODO: cutouts
|
||||||
|
}
|
||||||
|
}
|
||||||
|
}
|
||||||
|
|
@ -1,31 +0,0 @@
|
||||||
/*
|
|
||||||
// Height of trapazoid
|
|
||||||
height = 19;
|
|
||||||
|
|
||||||
// Width of top cube
|
|
||||||
top_x = 30;
|
|
||||||
// Length of top cube
|
|
||||||
top_y = 34;
|
|
||||||
|
|
||||||
// Width of bottom cube
|
|
||||||
bottom_x = 45;
|
|
||||||
// Length of bottom cube
|
|
||||||
bottom_y = 65;
|
|
||||||
|
|
||||||
wall_thickness = 2;
|
|
||||||
*/
|
|
||||||
module trap_cube(height = 19, top_x = 30, top_y = 34, bottom_x = 45, bottom_y = 65, wall_thickness = 2) {
|
|
||||||
difference(){
|
|
||||||
hull(){
|
|
||||||
translate([0,0,height])
|
|
||||||
cube([top_x, top_y, 0.1], center=true);
|
|
||||||
cube([bottom_x, bottom_y, 0.1], center=true);
|
|
||||||
}
|
|
||||||
|
|
||||||
hull(){
|
|
||||||
translate([0,0,height])
|
|
||||||
cube([top_x - wall_thickness, top_y - wall_thickness, 0.1], center=true);
|
|
||||||
cube([bottom_x - wall_thickness, bottom_y - wall_thickness, 0.1], center=true);
|
|
||||||
}
|
|
||||||
}
|
|
||||||
}
|
|
||||||
Loading…
Reference in New Issue