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//
// Units in mm.
//
/*
* Two ribbons.
*
* :param thickness: Material thickness.
* :param width: Width of each ribbon.
* :param length: Length of each ribbon.
* :param distance: Distance between the two ribbons. Measured from the middle of each ribbon.
* :param eps: Tolerance added to thickness, width and length. The distance remains unchanged.
*
* Position: Centered in the middle of the whole object.
*
*/
module Ribbons(
thickness, width, length, // Single ribbon
distance, // Two ribbons
eps=0 // Tolerance
)
{
translate([0, +distance/2.0, 0])
cube([length+eps, width+eps, thickness+2*eps], center=true);
translate([0, -distance/2.0, 0])
cube([length+eps, width+eps, thickness+2*eps], center=true);
}
//thickness = 3;
//width = 5;
//length = 20;
//distance = 20;
//eps = 0;
//Ribbons(thickness, width, length, distance, eps);
/*
* Nutcatch for flat sheets used in laser cutters.
*
* :param thickness: Thickness of the nutcatch.
* :param screwLength: Length of screw. Without its head.
* :param screwDia: Diameter of the screw.
* :param nutWidth: Width of nut.
* :param nutHeight: Height of nut.
* :param nutOffset: Distance from nut slot to beginning of screw.
* :param epsCut=0.1: Small value appended to thickness and the screwLength (at its origin).
*
* Position: At the beginning of the screw, z-centered.
*
* Tolerances: Tolerance epsCut is only added for using the object
* as difference easier. Tolerances in screwDia and
* others should be added manually. Thus, make it a
* little wider, longer, higher than exactly necessary
* yourself.
*
*/
module Nutcatch(
thickness, // Material details
screwLength, screwDia, // Screw details
nutWidth, nutHeight, // Nut details
nutOffset, epsCut=0.1 // Assembly details
)
{
translate([0, -screwDia/2.0, -epsCut-thickness/2.0]) {
translate([-epsCut, 0, 0])
cube([screwLength+epsCut, screwDia, thickness+2*epsCut]);
translate([nutOffset, (screwDia-nutWidth)/2.0, 0])
cube([nutHeight, nutWidth, thickness+2*epsCut]);
}
}
//thickness = 3;
//screwLength = 25;
//screwDia = 3;
//nutWidth = 5;
//nutHeight = 5;
//nutOffset = 0;
//epsCut=0.0;
//Nutcatch(thickness, screwLength, screwDia, nutWidth, nutHeight, nutOffset, epsCut);
/*
* Pole for stacking.
*
* :param thickness: Material thickness.
* :param height: Pole height.
* :param width: Pole width.
*
* Position: Object is centered in all three axes.
*
*/
module Pole(
thickness, height, width // Material details
)
{
cube([height, width, thickness], center=true);
}
//thickness = 3;
//height = 5;
//width = 3;
//Pole(thickness, height, width);
/*
* Pile. Assembly using Pole, Ribbons, Nutcatch.
*
* :param thickness: Material thickness.
* :param height: Height of pile.
* :param width: Width of pile.
* :param widthR: Width of ribbon.
* :param distanceR: Distance between ribbons.
* :param screwLength: Length of screw not including its top.
* :param screwDia: Diameter of the screw.
* :param nutWidth: Width of the nut.
* :param nutHeight: Height of the nut.
* :param nutOffset: Distance between upper side of nut and base.
*
* Position: Z-centered, y-centered and shifted to the base along x.
*
*/
module Pile(
thickness, height, width, // Pole
widthR, distanceR, // Ribbons
screwLength, screwDia, // Nutcatch
nutWidth, nutHeight,
nutOffset
)
{
// Pole geometry
heightP = height;
thicknessP = thickness;
widthP = width;
// Ribbons
thicknessR = thicknessP;
lengthR = heightP+1.6*thicknessP;
epsR = 0.0;
// Nutcatches
thicknessN = thicknessP;
epsCut = 0.1;
// Assembly
translate([height/2, 0, 0]) {
difference() {
union() {
// Basic structure
Pole(thicknessP, heightP, widthP);
// Additional ribbons
Ribbons(thicknessR, widthR, lengthR,
distanceR, epsR);
}
// Two nutcatches
translate([-heightP/2.0, 0, 0])
Nutcatch(thicknessN,
screwLength, screwDia,
nutWidth, nutHeight,
nutOffset, epsCut);
translate([heightP/2.0, 0, 0])
rotate([0, 0, 180])
Nutcatch(thicknessN,
screwLength, screwDia,
nutWidth, nutHeight,
nutOffset, epsCut);
}
}
}
//// Pole
//thickness = 3;
//height = 50;
//width = 30;
//// Ribbons
//widthR = 5;
//distanceR = 20;
//// Nutcatch
//screwLength = 20;
//screwDia = 3;
//nutWidth = 6;
//nutHeight = 4;
//nutOffset = 10;
//// Pile
//Pile(thickness, height, width,
// widthR, distanceR,
// screwLength, screwDia,
// nutWidth, nutHeight, nutOffset);
/*
* Mounting holes.
*
* :param thickness: Thickness of material.
* :param dia: Diameter of holes.
* :param nx, ny: Number of holes in direction i.
* :param dx, dy: Distance between holes in direction i.
* :param eps: Value added to thickness on top and bottom.
* :param fn: Resolution of holes.
*
* Position: Centered in all three directions.
*/
module Mount(
thickness,
dia,
nx, ny,
dx, dy,
eps = 0.1,
fn = 100
)
{
lenXmount=(nx-1)*dx;
lenYmount=(ny-1)*dy;
union() {
for(ix=[0:nx-1]) {
for(iy=[0:ny-1]) {
translate([-lenXmount/2.0+ix*dx,
-lenYmount/2.0+iy*dy,
0]) {
cylinder(h=thickness+2*eps,
r=dia/2.0,
$fn=fn,
center=true);
}
}
}
}
}
//thickness = 3;
//dia = 4;
//nx = 4;
//ny = 3;
//dx = 10;
//dy = 15;
//eps = 0;
//fn = 100;
//Mount(thickness, dia, nx, ny, dx, dy, eps, fn);
/*
* Piling.
*
* :param thickness: Material thickness.
* :param dia: Hole diameter.
* :param slotX, slotY: Slot dimensions.
* :param distance: Distance between slots.
* :param rotation: Rotation around z axis in degrees.
* :param fn: Hole resolution.
* :param epsT: Tolerance in thickness. This is added on top and bottom to thickness.
* :param epsS: Tolerance in slot dimensions. This is added around the slot.
* :param epsH: Tolerance in hole diameter. This is added around the slot as radius.
*
* Position: Centered in z and with respect to the hole. Aligned along x.
*/
module Piling(
thickness, // Material
dia, // Hole
slotX, slotY, distance, // Slot
rotation, // Position
fn=100,
epsT=0, // Thickness
epsS=0, // Slot
epsH=0 // Hole
)
{
rotate([0, 0, rotation]) {
union() {
cylinder(h=thickness+2*epsT, r=dia/2+epsH, $fn=fn, center=true);
translate([-distance/2, 0, 0]) cube([slotX+2*epsS, slotY+2*epsS, thickness+2*epsT], center=true);
translate([+distance/2, 0, 0]) cube([slotX+2*epsS, slotY+2*epsS, thickness+2*epsT], center=true);
}
}
}
//thickness = 3;
//dia = 2;
//slotX = 4;
//slotY = 4;
//distance = 20;
//rotation = 0;
//fn = 100;
//epsT = 0;
//epsS = 0;
//epsH = 0;
//Piling(thickness, dia, slotX, slotY, distance, rotation,
// fn, epsT, epsS, epsH);
/*
* Slot.
*
* :param thickness: Material thickness.
* :param length: Length along x.
* :param width: Width along y.
* :param epsT: Tolerance in thickness.
* :param epsS: Tolerance in length and width.
*
* Position: Z-centered, aligned along x and centered in x,y.
*/
module Slot(
thickness,
length, width,
epsT=0,
epsS=0
)
{
cube([length+2*epsS, width+2*epsS, thickness+2*epsT], center=true);
}
//thickness = 4;
//length = 20;
//width = 6;
//epsT = 0;
//epsS = 0;
//Slot(thickness, length, width, epsT, epsS);
/*
* Basis.
*
* :param thickness: Material thickness.
* :param length, width: Dimensions along x and y.
* :param radius: Radius of rounded corners.
* :param fn: Resolution of corners. Low values, e.g. 4, create flat edges.
*
* Position: Centered in all three dimensions.
*/
module Basis(
thickness,
length, width,
radius,
fn=100
)
{
// Positions for cylinders that are hulled
w_trans = (width -2*radius)/2.0;
l_trans = (length-2*radius)/2.0;
// Hull
hull(){
translate([+l_trans,+w_trans,0])
cylinder(r=radius, h=thickness, $fn=fn, center=true);
translate([-l_trans,+w_trans,0])
cylinder(r=radius, h=thickness, $fn=fn, center=true);
translate([+l_trans,-w_trans,0])
cylinder(r=radius, h=thickness, $fn=fn, center=true);
translate([-l_trans,-w_trans,0])
cylinder(r=radius, h=thickness, $fn=fn, center=true);
}
}
//thickness = 3;
//length = 300;
//width = 200;
//radius = 10;
//fn = 100;
//Basis(thickness, length, width, radius, fn);
/*
* Plate.
*
* TODO and test.
*/
module Plate(
thickness, length, width, radius, // Plate
diaM, nx, ny, dx, dy, // Mount
dxH, dyH, // Holes
diaP, slotX, slotY, distanceP, // Single pile
lengthP1, widthP1, rotationP1, // Pile 1
lengthP2, widthP2, rotationP2, // Pile 2
lengthS, widthS, distanceX_s, // Slot
distanceY_s
)
{
// Tolerances: At female, not at male part.
// Mount
thicknessM = thickness;
// Single pile
thicknessP = thickness;
// Slots
thicknessS = thickness;
difference() {
Basis(thickness,
length, width,
radius);
Mount(thicknessM,
diaM,
nx, ny,
dx, dy);
Mount(thicknessM,
diaM,
2, 2,
dxH, dyH);
// Two mirror operations
for(iMirrorY = [0, 1])
mirror([iMirrorY, 0, 0])
for(iMirrorX = [0, 1])
mirror([0, iMirrorX, 0]) {
// Piling 1
translate([lengthP1/2.0, widthP1/2.0, 0]){
Piling(thicknessP,
diaP,
slotX, slotY, distanceP,
rotationP1,
epsT=0.1,
epsS=0.2,
epsH=0.2);
}
// Piling 2
translate([lengthP2/2.0, widthP2/2.0, 0]){
Piling(thicknessP,
diaP,
slotX, slotY, distanceP,
rotationP2,
epsT=0.1,
epsS=0.2,
epsH=0.2);
}
}
// Slots
for(iMirror = [0, 1]){
mirror([0, iMirror, 0]) {
translate([0, distanceY_s/2.0, 0])
Slot(thicknessS,
lengthS, widthS,
epsT=0.1,
epsS=0.1);
}
mirror([iMirror, 0, 0]) {
translate([distanceX_s/2.0, 0, 0])
rotate([0,0,90])
Slot(thicknessS,
lengthS, widthS,
epsT=0.1,
epsS=0.1);
}
}
} // Difference
}
//// Plate
//thickness = 3.0;
//length = 150.0;
//width = 125.0;
//radius = 5;
//// Mount
//diaM = 3;
//nx = 9;
//ny = 6;
//dx = 10;
//dy = 10;
//// Holes (using Mount)
//dxH = 140;
//dyH = 115;
//// Single pile
//diaP = 3.0;
//slotX = 5.0;
//slotY = 3.0;
//distanceP = 15.0;
//// Both piles
//lengthP1 = 80;
//widthP1 = 100;
//lengthP2 = 125;
//widthP2 = 70;
//rotationP1 = -10;
//rotationP2 = -75;
//// Slot
//lengthS = 25;
//widthS = 3;
//distanceX_s = 135.0;
//distanceY_s = 110.0;
//// Plate
//Plate(
// thickness, length, width, radius, // Plate
// diaM, nx, ny, dx, dy, // Mount
// dxH, dyH, // Holes
// diaP, slotX, slotY, distanceP, // Single pile
// lengthP1, widthP1, rotationP1, // Pile 1
// lengthP2, widthP2, rotationP2, // Pile 2
// lengthS, widthS, distanceX_s, // Slot
// distanceY_s
//);
/*
* Foot. For Piling.
*
* :param diaUpper: Upper diameter.
* :param diaLower: Lower diameter.
* :param height: Height of foot.
* :param diaScrew: Diameter of screw.
* :param headDiaScrew: Diameter of screw's head.
* :param headHeightScrew: Height of screw's head.
* :param roundingRadius: Rounding of edges.
* :param epsRound: Added to radius of screw's and its head's hole.
* :param fn: Hole resolution.
*
* Position: x,y centered. Bottom at z=0.
*
*/
module Foot(
diaUpper, diaLower, height, // Outer
diaScrew, headDiaScrew, headHeightScrew, // Inner
roundingRadius, // Rouding
epsRound=0.1, // Tolerance
fn=100
)
{
difference() {
// Basic shape
hull(){
translate([0, 0, height-2*roundingRadius])
rotate_extrude(angle=360, $fn=fn)
translate([diaUpper/2.0-roundingRadius, roundingRadius, 0])
circle(r=roundingRadius, $fn=fn);
rotate_extrude(angle=360, $fn=fn)
translate([diaLower/2.0-roundingRadius, roundingRadius, 0])
circle(r=roundingRadius, $fn=fn);
}
// Space for screw
translate([0, 0, -1])
cylinder(d=diaScrew+2*epsRound, h=height+2, $fn=fn);
// Space for screw head
translate([0, 0, -1])
cylinder(d=headDiaScrew+2*epsRound,
h=headHeightScrew+1,
$fn=fn);
}
}
//diaUpper = 15;
//diaLower = 20;
//height=10;
//diaScrew = 3;
//headDiaScrew = 5.5;
//headHeightScrew = 5;
//roundingRadius = 2;
//epsRound = 0.2;
//fn = 100;
//Foot(
// diaUpper, diaLower, height,
// diaScrew, headDiaScrew, headHeightScrew,
// roundingRadius,
// epsRound, fn
//);
// ==================================================
// Raspberry Pi mounting
// ==================================================
/*
* Post. For Raspberry Pi mounting.
*
* :param screwDia: Diameter of screw.
* :param screwHeadDia: Diameter of screw's head.
* :param screwLength: Length of screw.
* :param height: Overall height of the post.
* :param diaUpper: Upper diameter.
* :param diaLower: Lower diameter.
* :param epsDia: Added to radius of screwDia and screwHeadDia.
* :param epsHeight: Added to height in negative direction. Useful for assembly.
* :param fn: Circle resolution.
*
* Position: Centered along x,y and sitting at z=0.
*
*/
module Post(
screwDia, screwHeadDia, screwLength,
height,
diaUpper, diaLower,
epsDia=0.0,
epsHeight=0.0,
fn=100
)
{
difference() {
union(){
translate([0, 0, -epsHeight]){
cylinder(d=diaUpper, $fn=fn, h=height+epsHeight);
hull(){
cylinder(d=diaLower, $fn=fn, h=height+epsHeight-screwLength);
cylinder(d=diaUpper, $fn=fn, h=height+epsHeight-screwLength*0.9);
} // hull
} // union
} // translate
union(){
translate([0, 0, -epsHeight-0.1]){
cylinder(d=screwDia+2*epsDia, $fn=fn, h=height+epsHeight+0.2);
cylinder(d=screwHeadDia+2*epsDia, $fn=fn, h=height-screwLength+epsHeight+0.2);
} // translate
} // unioin
} // diff
}
//screwDia = 3;
//screwHeadDia = 5;
//screwLength = 15;
//height = 25;
//diaUpper = 5;
//diaLower = 10;
//epsDia = 0.0;
//epsHeight = 0.0;
//fn = 100;
//Post(
// screwDia, screwHeadDia, screwLength,
// height,
// diaUpper, diaLower,
// epsDia,
// epsHeight,
// fn
// );
/*
* Frame. For Raspberry Pi mounting.
*
* :param thickness: Thickness of material.
* :param screwDia: Diameter of screw.
* :param dx, dy: x and y distance between holes.
* :param x, y: x and y coordinates of the arms' end-centers.
* :param armWidth: Width of the arm.
* :param lengthPosition: Fraction of longest arm length that the platform will be in the longest arm's direction.
* :param epsDia: Added to screwDia's radius.
* :param fn: Hole resolution.
*
* Position: Centered in x,y and at z=0 on top of the frame.
*
*/
module Frame(
thickness,
screwDia, dx, dy,
x, y, armWidth, lengthPortion,
epsDia=0,
fn=100
)
{
translate([0, 0, -thickness/2.0])
difference() {
union() {
// Arms
for(i=[0:len(x)-1]){
hull(){
translate([x[i], y[i], 0])
cylinder(d=armWidth, $fn=fn, center=true, h=thickness);
translate([0, 0, 0])
cylinder(d=armWidth, $fn=fn, center=true, h=thickness);
}
}
// Basis
pointNorms = [ for (i = [0:len(x)-1]) sqrt(x[i]*x[i]+y[i]*y[i]) ];
maxNorm = max(pointNorms);
// TODO: Avoid creating things twice if multiple points have the same maximal norm!
for(i=[0:len(x)-1])
if (sqrt(x[i]*x[i]+y[i]*y[i])==maxNorm){
r = armWidth/2;
xPos = abs(x[i])*lengthPortion;
yPos = abs(y[i])*lengthPortion;
hull() {
translate([xPos-r, yPos-r, 0])
cylinder(r=r, h=thickness, center=true, $fn=fn);
translate([-xPos+r, yPos-r, 0])
cylinder(r=r, h=thickness, center=true, $fn=fn);
translate([xPos-r, -yPos+r, 0])
cylinder(r=r, h=thickness, center=true, $fn=fn);
translate([-xPos+r, -yPos+r, 0])
cylinder(r=r, h=thickness, center=true, $fn=fn);
}
}
} // union
// Screwing holes
translate([dx/2.0, -dy/2.0, 0])
cylinder(h=2+thickness, d=screwDia+2*epsDia, center = true, $fn=fn);
translate([-dx/2.0, dy/2.0, 0])
cylinder(h=2+thickness, d=screwDia+2*epsDia, center = true, $fn=fn);
} // difference
}
//thickness = 3;
//screwDia=3;
//dx = 10;
//dy = 10;
//x = [50, -50, ];
//y = [100, -100, ];
//armWidth = 6;
//lengthPortion = 0.5;
//fn = 100;
//epsDia = 0;
//Frame(
// thickness,
// screwDia, dx, dy,
// x, y, armWidth, lengthPortion,
// epsDia,
// fn
// );
/*
* Mounting. Mounting piece for Raspberry Pi.
*
*
*
*
*
*
*
*/
module Mounting(
thickness, screwDiaF, // Frame
dx, dy, x, y,
armWidth, lengthPortion,
screwDiaP, screwHeadDia, screwLength, // Post
height, diaUpper, diaLower,
epsDia = 0.0, // Tolerances
fn = 100
)
{
// Dimensions for Posts
epsHeight = thickness;
union(){
// Posts
for(i=[0:len(x)-1]) {
translate([x[i], y[i], 0])
Post(
screwDiaP, screwHeadDia, screwLength,
height,
diaUpper, diaLower,
epsDia,
epsHeight,
fn
);
}
difference() {
// Frame
Frame(
thickness,
screwDiaF, dx, dy,
x, y, armWidth, lengthPortion,
epsDia,
fn
);
// Make space for Posts
for(i=[0:len(x)-1]) {
translate([x[i], y[i], -thickness/2.0])
cylinder($fn=fn, center=true, h=thickness+2, d=diaLower-0.1);
}
} // difference
} // union
}
//// Frame
//thickness = 3;
//screwDiaF = 3;
//dx = 10;
//dy = 10;
//x = [50, -50, ];
//y = [100, -100, ];
//armWidth = 10;
//lengthPortion = 0.5;
//// Post
//screwDiaP = 3;
//screwHeadDia = 5;
//screwLength = 10;
//height = 20;
//diaUpper = 5;
//diaLower = 10;
//epsDia = 0.25;
//fn = 100;
//// Construction
//Mounting(
// thickness, screwDiaF, // Frame
// dx, dy, x, y,
// armWidth, lengthPortion,
// screwDiaP, screwHeadDia, screwLength, // Post
// height, diaUpper, diaLower,
// epsDia, // Tolerances
// fn
//);75351ad1bThis file is pinned to the selected release. Download the original to open it in your design tool.