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Synopses for cubetruss.scad
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Revar Desmera
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487
cubetruss.scad
487
cubetruss.scad
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@ -16,81 +16,67 @@ $cubetruss_clip_thickness = 1.6;
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// Section: Cube Trusses
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// Function: cubetruss_dist()
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// Module: cubetruss()
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// Synopsis: Creates a multi-cube straight cubetruss shape.
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// Topics: Trusses, CubeTruss, FDM Optimized, Parts
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// See Also: cubetruss_segment(), cubetruss_support(), cubetruss(), cubetruss_corner()
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// Usage:
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// cubetruss_dist(cubes, gaps, [size], [strut]);
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// cubetruss(extents, [clips], [bracing], [size], [strut], [clipthick]);
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// Description:
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// Function to calculate the length of a cubetruss truss.
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// Arguments:
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// cubes = The number of cubes along the truss's length.
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// gaps = The number of extra strut widths to add in, corresponding to each time a truss butts up against another.
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// size = The length of each side of the cubetruss cubes. Default: `$cubetruss_size` (usually 30)
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// strut = The width of the struts on the cubetruss cubes. Default: `$cubetruss_strut_size` (usually 3)
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// Topics: Trusses
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function cubetruss_dist(cubes=0, gaps=0, size, strut) =
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let(
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size = is_undef(size)? $cubetruss_size : size,
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strut = is_undef(strut)? $cubetruss_strut_size : strut
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) cubes*(size-strut)+gaps*strut;
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// Module: cubetruss_segment()
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// Usage:
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// cubetruss_segment([size], [strut], [bracing]);
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// Description:
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// Creates a single cubetruss cube segment.
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// Creates a cubetruss truss, assembled out of one or more cubical segments.
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// Arguments:
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// extents = The number of cubes in length to make the truss. If given as a [X,Y,Z] vector, specifies the number of cubes in each dimension.
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// clips = List of vectors pointing towards the sides to add clips to.
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// size = The length of each side of the cubetruss cubes. Default: `$cubetruss_size` (usually 30)
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// strut = The width of the struts on the cubetruss cubes. Default: `$cubetruss_strut_size` (usually 3)
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// bracing = If true, adds internal cross-braces. Default: `$cubetruss_bracing` (usually true)
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// clipthick = The thickness of the clips. Default: `$cubetruss_clip_thickness` (usually 1.6)
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// ---
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// anchor = Translate so anchor point is at origin (0,0,0). See [anchor](attachments.scad#subsection-anchor). Default: `CENTER`
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// spin = Rotate this many degrees around the Z axis. See [spin](attachments.scad#subsection-spin). Default: `0`
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// orient = Vector to rotate top towards. See [orient](attachments.scad#subsection-orient). Default: `UP`
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// Topics: Attachable, Trusses
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// Examples:
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// cubetruss_segment(bracing=false);
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// cubetruss_segment(bracing=true);
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// cubetruss_segment(strut=4);
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// cubetruss_segment(size=40);
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module cubetruss_segment(size, strut, bracing, anchor=CENTER, spin=0, orient=UP) {
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// cubetruss(extents=3);
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// cubetruss(extents=3, clips=FRONT);
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// cubetruss(extents=3, clips=[FRONT,BACK]);
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// cubetruss(extents=[2,3]);
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// cubetruss(extents=[1,4,2]);
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// cubetruss(extents=[1,4,2], bracing=false);
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module cubetruss(extents=6, clips=[], bracing, size, strut, clipthick, anchor=CENTER, spin=0, orient=UP) {
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clips = is_vector(clips)? [clips] : clips;
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size = is_undef(size)? $cubetruss_size : size;
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strut = is_undef(strut)? $cubetruss_strut_size : strut;
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bracing = is_undef(bracing)? $cubetruss_bracing : bracing;
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h = size;
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crossthick = strut/sqrt(2);
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voffset = 0.333;
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attachable(anchor,spin,orient, size=[size,size,size]) {
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render(convexity=10)
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clipthick = is_undef(clipthick)? $cubetruss_clip_thickness : clipthick;
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extents = is_vector(extents)? point3d(extents,fill=1) : [1,extents,1];
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w = extents[0];
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l = extents[1];
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h = extents[2];
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s = [cubetruss_dist(w,1), cubetruss_dist(l,1), cubetruss_dist(h,1)];
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attachable(anchor,spin,orient, size=s) {
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union() {
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difference() {
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// Start with a cube.
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cube([size, size, h], center=true);
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cube([size-strut*2, size-strut*2, h-strut*2], center=true);
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// Hollow out octogons in X and Y axes.
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zrot_copies([0,90]) {
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xrot(90) zrot(180/8) cylinder(h=max(h,size)+1, d=(min(h,size)-2*strut)/cos(180/8), center=true, $fn=8);
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for (zrow = [0:h-1]) {
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up((zrow-(h-1)/2)*(size-strut)) {
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for (xcol = [0:w-1]) {
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right((xcol-(w-1)/2)*(size-strut)) {
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for (ycol = [0:l-1]) {
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back((ycol-(l-1)/2)*(size-strut)) {
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cubetruss_segment(size=size, strut=strut, bracing=bracing);
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}
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}
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}
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}
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}
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// Hollow out octogon vertically.
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zrot(180/8) cylinder(h=max(h,size)+1, d=(min(h,size)-2*strut)/cos(180/8), center=true, $fn=8);
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}
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// Interior cross-supports
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if (bracing) {
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for (i = [-1,1]) {
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zrot(i*45) {
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difference() {
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cube([crossthick, (size-strut)*sqrt(2), h], center=true);
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up(i*voffset) {
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yscale(1.3) {
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yrot(90) {
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zrot(180/6) {
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cylinder(h=crossthick+1, d=(min(h,size)-2*strut)/cos(180/6)-2*voffset, center=true, $fn=6);
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}
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}
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if (clipthick > 0) {
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for (vec = clips) {
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exts = v_abs(rot(from=FWD, to=vec, p=extents));
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rot(from=FWD,to=vec) {
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for (zrow = [0:1:exts.z-1]) {
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up((zrow-(exts.z-1)/2)*(size-strut)) {
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fwd((exts.y*(size-strut)+strut)/2) {
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cubetruss_clip(size=size, strut=strut, extents=exts.x, clipthick=clipthick);
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}
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}
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}
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@ -103,7 +89,86 @@ module cubetruss_segment(size, strut, bracing, anchor=CENTER, spin=0, orient=UP)
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}
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// Module: cubetruss_corner()
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// Synopsis: Creates a multi-cube corner cubetruss shape.
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// Topics: Trusses, CubeTruss, FDM Optimized, Parts
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// See Also: cubetruss_segment(), cubetruss_support(), cubetruss(), cubetruss_corner()
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// Usage:
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// cubetruss_corner(h, extents, [bracing], [size], [strut], [clipthick]);
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// Description:
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// Creates a corner cubetruss with extents jutting out in one or more directions.
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// Arguments:
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// h = The number of cubes high to make the base and horizontal extents.
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// extents = The number of cubes to extend beyond the corner. If given as a vector of cube counts, gives the number of cubes to extend right, back, left, front, and up in order. If the vector is shorter than length 5 the extra cube counts are taken to be zero.
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// size = The length of each side of the cubetruss cubes. Default: `$cubetruss_size` (usually 30)
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// strut = The width of the struts on the cubetruss cubes. Default: `$cubetruss_strut_size` (usually 3)
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// bracing = If true, adds internal cross-braces. Default: `$cubetruss_bracing` (usually true)
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// clipthick = The thickness of the clips. Default: `$cubetruss_clip_thickness` (usually 1.6)
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// ---
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// anchor = Translate so anchor point is at origin (0,0,0). See [anchor](attachments.scad#subsection-anchor). Default: `CENTER`
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// spin = Rotate this many degrees around the Z axis. See [spin](attachments.scad#subsection-spin). Default: `0`
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// orient = Vector to rotate top towards. See [orient](attachments.scad#subsection-orient). Default: `UP`
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// Topics: Attachable, Trusses
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// Examples:
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// cubetruss_corner(extents=2);
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// cubetruss_corner(extents=2, h=2);
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// cubetruss_corner(extents=[3,3,0,0,2]);
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// cubetruss_corner(extents=[3,0,3,0,2]);
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// cubetruss_corner(extents=[3,3,3,3,2]);
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module cubetruss_corner(h=1, extents=[1,1,0,0,1], bracing, size, strut, clipthick, anchor=CENTER, spin=0, orient=UP) {
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size = is_undef(size)? $cubetruss_size : size;
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strut = is_undef(strut)? $cubetruss_strut_size : strut;
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bracing = is_undef(bracing)? $cubetruss_bracing : bracing;
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clipthick = is_undef(clipthick)? $cubetruss_clip_thickness : clipthick;
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exts = is_vector(extents)? list_pad(extents,5,fill=0) : [extents, extents, 0, 0, extents];
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dummy = assert(len(exts)==5, "Input extents must be a scalar or vector with length 5 or less.");
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s = [cubetruss_dist(exts[0]+1+exts[2],1), cubetruss_dist(exts[1]+1+exts[3],1), cubetruss_dist(h+exts[4],1)];
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offset = [cubetruss_dist(exts[0]-exts[2],0), cubetruss_dist(exts[1]-exts[3],0), cubetruss_dist(h+exts[4]-1,0)]/2;
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attachable(anchor,spin,orient, size=s, offset=offset) {
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union() {
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for (zcol = [0:h-1]) {
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up((size-strut)*zcol) {
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cubetruss_segment(size=size, strut=strut, bracing=bracing);
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}
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}
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for (dir = [0:3]) {
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if (exts[dir] != undef && exts[dir] > 0) {
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zrot(dir*90) {
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for (zcol = [0:h-1]) {
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up((size-strut+0.01)*zcol) {
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for (i = [1:exts[dir]]) {
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right((size-strut+0.01)*i) cubetruss_segment(size=size, strut=strut, bracing=bracing);
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}
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if (clipthick > 0) {
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right(exts[dir]*(size-strut)+size/2) {
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zrot(90) cubetruss_clip(size=size, strut=strut, clipthick=clipthick);
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}
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}
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}
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}
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}
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}
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}
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if (exts[4] != undef && exts[4] > 0) {
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for (i = [1:exts[4]]) {
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up((size-strut+0.01)*(i+h-1)) cubetruss_segment(size=size, strut=strut, bracing=bracing);
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}
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if (clipthick > 0) {
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up((exts[4]+h-1)*(size-strut)+size/2) {
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xrot(-90) cubetruss_clip(size=size, strut=strut, clipthick=clipthick);
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}
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}
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}
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}
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children();
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}
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}
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// Module: cubetruss_support()
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// Synopsis: Creates a cubetruss support structure shape.
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// Topics: Trusses, CubeTruss, FDM Optimized, Parts
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// See Also: cubetruss_segment(), cubetruss_support(), cubetruss(), cubetruss_corner()
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// Usage:
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// cubetruss_support([size], [strut], [extents], [anchor], [spin], [orient]) [ATTACHMENTS];
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// Description:
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@ -164,72 +229,13 @@ module cubetruss_support(size, strut, extents=1, anchor=CENTER, spin=0, orient=U
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}
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// Module: cubetruss_clip()
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// Usage:
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// cubetruss_clip(extents, [size], [strut], [clipthick], [$slop=], [anchor=], [spin=], [orient=]) [ATTACHMENTS];
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// Description:
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// Creates a pair of clips to add onto the end of a truss.
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// Arguments:
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// extents = How many cubes to separate the clips by.
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// size = The length of each side of the cubetruss cubes. Default: `$cubetruss_size` (usually 30)
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// strut = The width of the struts on the cubetruss cubes. Default: `$cubetruss_strut_size` (usually 3)
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// clipthick = The thickness of the clip. Default: `$cubetruss_clip_thickness` (usually 1.6)
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// ---
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// $slop = allowance for printer overextrusion
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// anchor = Translate so anchor point is at origin (0,0,0). See [anchor](attachments.scad#subsection-anchor). Default: `CENTER`
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// spin = Rotate this many degrees around the Z axis. See [spin](attachments.scad#subsection-spin). Default: `0`
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// orient = Vector to rotate top towards. See [orient](attachments.scad#subsection-orient). Default: `UP`
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// Topics: Attachable, Trusses
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// Examples:
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// cubetruss_clip(extents=2);
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// cubetruss_clip(extents=1);
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// cubetruss_clip(clipthick=2.5);
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module cubetruss_clip(extents=1, size, strut, clipthick, anchor=CENTER, spin=0, orient=UP) {
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size = is_undef(size)? $cubetruss_size : size;
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strut = is_undef(strut)? $cubetruss_strut_size : strut;
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clipthick = is_undef(clipthick)? $cubetruss_clip_thickness : clipthick;
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cliplen = strut * 2.6;
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clipheight = min(size+strut, size/3+2*strut*2.6);
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clipsize = 0.5;
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s = [extents*(size-strut)+strut+2*clipthick, strut*2, clipheight-2*strut];
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attachable(anchor,spin,orient, size=s) {
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xflip_copy(offset=(extents*(size-strut)+strut)/2) {
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difference() {
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union() {
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difference() {
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right(clipthick/2-0.01) {
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back(strut) {
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difference() {
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xrot(90) prismoid([clipthick, clipheight], [clipthick, clipheight-cliplen*2], h=cliplen);
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right(clipthick/2) chamfer_edge_mask(l=clipheight+0.1, chamfer=clipthick);
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}
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}
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}
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fwd(strut*3/2) {
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cube([get_slop(), strut*3, size], center=true);
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}
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}
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right(get_slop()/2+0.01) {
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fwd(strut*1.25+get_slop()) {
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yrot(-90) prismoid([clipheight-cliplen*2, strut/2], [clipheight-cliplen*2-2*clipsize, strut/2], h=clipsize+0.01);
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}
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}
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}
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fwd(strut*1.6) {
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left(clipsize) {
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yscale(1.5) chamfer_edge_mask(l=size+1, chamfer=clipsize+clipthick/3);
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}
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}
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zcopies(clipheight-strut) cube([clipthick*3, cliplen*2, strut], center=true);
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zcopies(clipheight-2*strut) right(clipthick) chamfer_edge_mask(l=cliplen*2, chamfer=clipthick, orient=BACK);
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}
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}
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children();
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}
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}
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// Section: Cubetruss Support
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// Module: cubetruss_foot()
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// Synopsis: Creates a foot that can connect two cubetrusses.
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// Topics: Trusses, CubeTruss, FDM Optimized, Parts
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// See Also: cubetruss_segment(), cubetruss_support(), cubetruss(), cubetruss_corner()
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// Usage:
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// cubetruss_foot(w, [size], [strut], [clipthick], [$slop=], [anchor=], [spin=], [orient=]) [ATTACHMENTS];
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// Description:
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@ -307,6 +313,9 @@ module cubetruss_foot(w=1, size, strut, clipthick, anchor=CENTER, spin=0, orient
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// Module: cubetruss_joiner()
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// Synopsis: Creates a joiner that can connect two cubetrusses end-to-end.
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// Topics: Trusses, CubeTruss, FDM Optimized, Parts
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// See Also: cubetruss_segment(), cubetruss_support(), cubetruss(), cubetruss_corner()
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// Usage:
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// cubetruss_joiner([w], [vert], [size], [strut], [clipthick], [$slop=], [anchor=], [spin=], [orient=]) [ATTACHMENTS];
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// Description:
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@ -375,6 +384,9 @@ module cubetruss_joiner(w=1, vert=true, size, strut, clipthick, anchor=CENTER, s
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// Module: cubetruss_uclip()
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// Synopsis: Creates a joiner that can connect two cubetrusses end-to-end.
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// Topics: Trusses, CubeTruss, FDM Optimized, Parts
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// See Also: cubetruss_segment(), cubetruss_support(), cubetruss(), cubetruss_corner()
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// Usage:
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// cubetruss_uclip(dual, [size], [strut], [clipthick], [$slop=], [anchor=], [spin=], [orient=]) [ATTACHMENTS];
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// Description:
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@ -420,126 +432,68 @@ module cubetruss_uclip(dual=true, size, strut, clipthick, anchor=CENTER, spin=0,
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}
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// Module: cubetruss()
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// Section: Cubetruss Primitives
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// Module: cubetruss_segment()
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// Synopsis: Creates a single cubetruss cube.
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// Topics: Trusses, CubeTruss, FDM Optimized, Parts
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// See Also: cubetruss_segment(), cubetruss_support(), cubetruss(), cubetruss_corner()
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// Usage:
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// cubetruss(extents, [clips], [bracing], [size], [strut], [clipthick]);
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// cubetruss_segment([size], [strut], [bracing]);
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// Description:
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// Creates a cubetruss truss, assembled out of one or more cubical segments.
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// Creates a single cubetruss cube segment.
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// Arguments:
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// extents = The number of cubes in length to make the truss. If given as a [X,Y,Z] vector, specifies the number of cubes in each dimension.
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// clips = List of vectors pointing towards the sides to add clips to.
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// size = The length of each side of the cubetruss cubes. Default: `$cubetruss_size` (usually 30)
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// strut = The width of the struts on the cubetruss cubes. Default: `$cubetruss_strut_size` (usually 3)
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// bracing = If true, adds internal cross-braces. Default: `$cubetruss_bracing` (usually true)
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// clipthick = The thickness of the clips. Default: `$cubetruss_clip_thickness` (usually 1.6)
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// ---
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// anchor = Translate so anchor point is at origin (0,0,0). See [anchor](attachments.scad#subsection-anchor). Default: `CENTER`
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// spin = Rotate this many degrees around the Z axis. See [spin](attachments.scad#subsection-spin). Default: `0`
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// orient = Vector to rotate top towards. See [orient](attachments.scad#subsection-orient). Default: `UP`
|
||||
// Topics: Attachable, Trusses
|
||||
// Examples:
|
||||
// cubetruss(extents=3);
|
||||
// cubetruss(extents=3, clips=FRONT);
|
||||
// cubetruss(extents=3, clips=[FRONT,BACK]);
|
||||
// cubetruss(extents=[2,3]);
|
||||
// cubetruss(extents=[1,4,2]);
|
||||
// cubetruss(extents=[1,4,2], bracing=false);
|
||||
module cubetruss(extents=6, clips=[], bracing, size, strut, clipthick, anchor=CENTER, spin=0, orient=UP) {
|
||||
clips = is_vector(clips)? [clips] : clips;
|
||||
// cubetruss_segment(bracing=false);
|
||||
// cubetruss_segment(bracing=true);
|
||||
// cubetruss_segment(strut=4);
|
||||
// cubetruss_segment(size=40);
|
||||
module cubetruss_segment(size, strut, bracing, anchor=CENTER, spin=0, orient=UP) {
|
||||
size = is_undef(size)? $cubetruss_size : size;
|
||||
strut = is_undef(strut)? $cubetruss_strut_size : strut;
|
||||
bracing = is_undef(bracing)? $cubetruss_bracing : bracing;
|
||||
clipthick = is_undef(clipthick)? $cubetruss_clip_thickness : clipthick;
|
||||
extents = is_vector(extents)? point3d(extents,fill=1) : [1,extents,1];
|
||||
w = extents[0];
|
||||
l = extents[1];
|
||||
h = extents[2];
|
||||
s = [cubetruss_dist(w,1), cubetruss_dist(l,1), cubetruss_dist(h,1)];
|
||||
attachable(anchor,spin,orient, size=s) {
|
||||
h = size;
|
||||
crossthick = strut/sqrt(2);
|
||||
voffset = 0.333;
|
||||
attachable(anchor,spin,orient, size=[size,size,size]) {
|
||||
render(convexity=10)
|
||||
union() {
|
||||
for (zrow = [0:h-1]) {
|
||||
up((zrow-(h-1)/2)*(size-strut)) {
|
||||
for (xcol = [0:w-1]) {
|
||||
right((xcol-(w-1)/2)*(size-strut)) {
|
||||
for (ycol = [0:l-1]) {
|
||||
back((ycol-(l-1)/2)*(size-strut)) {
|
||||
cubetruss_segment(size=size, strut=strut, bracing=bracing);
|
||||
}
|
||||
}
|
||||
}
|
||||
}
|
||||
}
|
||||
}
|
||||
if (clipthick > 0) {
|
||||
for (vec = clips) {
|
||||
exts = v_abs(rot(from=FWD, to=vec, p=extents));
|
||||
rot(from=FWD,to=vec) {
|
||||
for (zrow = [0:1:exts.z-1]) {
|
||||
up((zrow-(exts.z-1)/2)*(size-strut)) {
|
||||
fwd((exts.y*(size-strut)+strut)/2) {
|
||||
cubetruss_clip(size=size, strut=strut, extents=exts.x, clipthick=clipthick);
|
||||
}
|
||||
}
|
||||
}
|
||||
}
|
||||
}
|
||||
}
|
||||
}
|
||||
children();
|
||||
}
|
||||
}
|
||||
difference() {
|
||||
// Start with a cube.
|
||||
cube([size, size, h], center=true);
|
||||
|
||||
cube([size-strut*2, size-strut*2, h-strut*2], center=true);
|
||||
|
||||
// Module: cubetruss_corner()
|
||||
// Usage:
|
||||
// cubetruss_corner(h, extents, [bracing], [size], [strut], [clipthick]);
|
||||
// Description:
|
||||
// Creates a corner cubetruss with extents jutting out in one or more directions.
|
||||
// Arguments:
|
||||
// h = The number of cubes high to make the base and horizontal extents.
|
||||
// extents = The number of cubes to extend beyond the corner. If given as a vector of cube counts, gives the number of cubes to extend right, back, left, front, and up in order. If the vector is shorter than length 5 the extra cube counts are taken to be zero.
|
||||
// size = The length of each side of the cubetruss cubes. Default: `$cubetruss_size` (usually 30)
|
||||
// strut = The width of the struts on the cubetruss cubes. Default: `$cubetruss_strut_size` (usually 3)
|
||||
// bracing = If true, adds internal cross-braces. Default: `$cubetruss_bracing` (usually true)
|
||||
// clipthick = The thickness of the clips. Default: `$cubetruss_clip_thickness` (usually 1.6)
|
||||
// ---
|
||||
// anchor = Translate so anchor point is at origin (0,0,0). See [anchor](attachments.scad#subsection-anchor). Default: `CENTER`
|
||||
// spin = Rotate this many degrees around the Z axis. See [spin](attachments.scad#subsection-spin). Default: `0`
|
||||
// orient = Vector to rotate top towards. See [orient](attachments.scad#subsection-orient). Default: `UP`
|
||||
// Topics: Attachable, Trusses
|
||||
// Examples:
|
||||
// cubetruss_corner(extents=2);
|
||||
// cubetruss_corner(extents=2, h=2);
|
||||
// cubetruss_corner(extents=[3,3,0,0,2]);
|
||||
// cubetruss_corner(extents=[3,0,3,0,2]);
|
||||
// cubetruss_corner(extents=[3,3,3,3,2]);
|
||||
module cubetruss_corner(h=1, extents=[1,1,0,0,1], bracing, size, strut, clipthick, anchor=CENTER, spin=0, orient=UP) {
|
||||
size = is_undef(size)? $cubetruss_size : size;
|
||||
strut = is_undef(strut)? $cubetruss_strut_size : strut;
|
||||
bracing = is_undef(bracing)? $cubetruss_bracing : bracing;
|
||||
clipthick = is_undef(clipthick)? $cubetruss_clip_thickness : clipthick;
|
||||
exts = is_vector(extents)? list_pad(extents,5,fill=0) : [extents, extents, 0, 0, extents];
|
||||
dummy = assert(len(exts)==5, "Input extents must be a scalar or vector with length 5 or less.");
|
||||
s = [cubetruss_dist(exts[0]+1+exts[2],1), cubetruss_dist(exts[1]+1+exts[3],1), cubetruss_dist(h+exts[4],1)];
|
||||
offset = [cubetruss_dist(exts[0]-exts[2],0), cubetruss_dist(exts[1]-exts[3],0), cubetruss_dist(h+exts[4]-1,0)]/2;
|
||||
attachable(anchor,spin,orient, size=s, offset=offset) {
|
||||
union() {
|
||||
for (zcol = [0:h-1]) {
|
||||
up((size-strut)*zcol) {
|
||||
cubetruss_segment(size=size, strut=strut, bracing=bracing);
|
||||
// Hollow out octogons in X and Y axes.
|
||||
zrot_copies([0,90]) {
|
||||
xrot(90) zrot(180/8) cylinder(h=max(h,size)+1, d=(min(h,size)-2*strut)/cos(180/8), center=true, $fn=8);
|
||||
}
|
||||
|
||||
// Hollow out octogon vertically.
|
||||
zrot(180/8) cylinder(h=max(h,size)+1, d=(min(h,size)-2*strut)/cos(180/8), center=true, $fn=8);
|
||||
}
|
||||
for (dir = [0:3]) {
|
||||
if (exts[dir] != undef && exts[dir] > 0) {
|
||||
zrot(dir*90) {
|
||||
for (zcol = [0:h-1]) {
|
||||
up((size-strut+0.01)*zcol) {
|
||||
for (i = [1:exts[dir]]) {
|
||||
right((size-strut+0.01)*i) cubetruss_segment(size=size, strut=strut, bracing=bracing);
|
||||
}
|
||||
if (clipthick > 0) {
|
||||
right(exts[dir]*(size-strut)+size/2) {
|
||||
zrot(90) cubetruss_clip(size=size, strut=strut, clipthick=clipthick);
|
||||
|
||||
// Interior cross-supports
|
||||
if (bracing) {
|
||||
for (i = [-1,1]) {
|
||||
zrot(i*45) {
|
||||
difference() {
|
||||
cube([crossthick, (size-strut)*sqrt(2), h], center=true);
|
||||
up(i*voffset) {
|
||||
yscale(1.3) {
|
||||
yrot(90) {
|
||||
zrot(180/6) {
|
||||
cylinder(h=crossthick+1, d=(min(h,size)-2*strut)/cos(180/6)-2*voffset, center=true, $fn=6);
|
||||
}
|
||||
}
|
||||
}
|
||||
}
|
||||
|
|
@ -547,15 +501,73 @@ module cubetruss_corner(h=1, extents=[1,1,0,0,1], bracing, size, strut, clipthic
|
|||
}
|
||||
}
|
||||
}
|
||||
if (exts[4] != undef && exts[4] > 0) {
|
||||
for (i = [1:exts[4]]) {
|
||||
up((size-strut+0.01)*(i+h-1)) cubetruss_segment(size=size, strut=strut, bracing=bracing);
|
||||
}
|
||||
if (clipthick > 0) {
|
||||
up((exts[4]+h-1)*(size-strut)+size/2) {
|
||||
xrot(-90) cubetruss_clip(size=size, strut=strut, clipthick=clipthick);
|
||||
}
|
||||
children();
|
||||
}
|
||||
}
|
||||
|
||||
|
||||
// Module: cubetruss_clip()
|
||||
// Synopsis: Creates a clip for the end of a cubetruss to snap-lock it to another cubetruss.
|
||||
// Topics: Trusses, CubeTruss, FDM Optimized, Parts
|
||||
// See Also: cubetruss_segment(), cubetruss_support(), cubetruss(), cubetruss_corner()
|
||||
// Usage:
|
||||
// cubetruss_clip(extents, [size], [strut], [clipthick], [$slop=], [anchor=], [spin=], [orient=]) [ATTACHMENTS];
|
||||
// Description:
|
||||
// Creates a pair of clips to add onto the end of a truss.
|
||||
// Arguments:
|
||||
// extents = How many cubes to separate the clips by.
|
||||
// size = The length of each side of the cubetruss cubes. Default: `$cubetruss_size` (usually 30)
|
||||
// strut = The width of the struts on the cubetruss cubes. Default: `$cubetruss_strut_size` (usually 3)
|
||||
// clipthick = The thickness of the clip. Default: `$cubetruss_clip_thickness` (usually 1.6)
|
||||
// ---
|
||||
// $slop = allowance for printer overextrusion
|
||||
// anchor = Translate so anchor point is at origin (0,0,0). See [anchor](attachments.scad#subsection-anchor). Default: `CENTER`
|
||||
// spin = Rotate this many degrees around the Z axis. See [spin](attachments.scad#subsection-spin). Default: `0`
|
||||
// orient = Vector to rotate top towards. See [orient](attachments.scad#subsection-orient). Default: `UP`
|
||||
// Topics: Attachable, Trusses
|
||||
// Examples:
|
||||
// cubetruss_clip(extents=2);
|
||||
// cubetruss_clip(extents=1);
|
||||
// cubetruss_clip(clipthick=2.5);
|
||||
module cubetruss_clip(extents=1, size, strut, clipthick, anchor=CENTER, spin=0, orient=UP) {
|
||||
size = is_undef(size)? $cubetruss_size : size;
|
||||
strut = is_undef(strut)? $cubetruss_strut_size : strut;
|
||||
clipthick = is_undef(clipthick)? $cubetruss_clip_thickness : clipthick;
|
||||
cliplen = strut * 2.6;
|
||||
clipheight = min(size+strut, size/3+2*strut*2.6);
|
||||
clipsize = 0.5;
|
||||
s = [extents*(size-strut)+strut+2*clipthick, strut*2, clipheight-2*strut];
|
||||
attachable(anchor,spin,orient, size=s) {
|
||||
xflip_copy(offset=(extents*(size-strut)+strut)/2) {
|
||||
difference() {
|
||||
union() {
|
||||
difference() {
|
||||
right(clipthick/2-0.01) {
|
||||
back(strut) {
|
||||
difference() {
|
||||
xrot(90) prismoid([clipthick, clipheight], [clipthick, clipheight-cliplen*2], h=cliplen);
|
||||
right(clipthick/2) chamfer_edge_mask(l=clipheight+0.1, chamfer=clipthick);
|
||||
}
|
||||
}
|
||||
}
|
||||
fwd(strut*3/2) {
|
||||
cube([get_slop(), strut*3, size], center=true);
|
||||
}
|
||||
}
|
||||
right(get_slop()/2+0.01) {
|
||||
fwd(strut*1.25+get_slop()) {
|
||||
yrot(-90) prismoid([clipheight-cliplen*2, strut/2], [clipheight-cliplen*2-2*clipsize, strut/2], h=clipsize+0.01);
|
||||
}
|
||||
}
|
||||
}
|
||||
fwd(strut*1.6) {
|
||||
left(clipsize) {
|
||||
yscale(1.5) chamfer_edge_mask(l=size+1, chamfer=clipsize+clipthick/3);
|
||||
}
|
||||
}
|
||||
zcopies(clipheight-strut) cube([clipthick*3, cliplen*2, strut], center=true);
|
||||
zcopies(clipheight-2*strut) right(clipthick) chamfer_edge_mask(l=cliplen*2, chamfer=clipthick, orient=BACK);
|
||||
}
|
||||
}
|
||||
children();
|
||||
|
|
@ -563,5 +575,26 @@ module cubetruss_corner(h=1, extents=[1,1,0,0,1], bracing, size, strut, clipthic
|
|||
}
|
||||
|
||||
|
||||
// Function: cubetruss_dist()
|
||||
// Synopsis: Returns the length of a cubetruss truss.
|
||||
// Topics: Trusses, CubeTruss, FDM Optimized, Parts
|
||||
// See Also: cubetruss_segment(), cubetruss_support(), cubetruss(), cubetruss_corner()
|
||||
// Usage:
|
||||
// cubetruss_dist(cubes, gaps, [size], [strut]);
|
||||
// Description:
|
||||
// Function to calculate the length of a cubetruss truss.
|
||||
// Arguments:
|
||||
// cubes = The number of cubes along the truss's length.
|
||||
// gaps = The number of extra strut widths to add in, corresponding to each time a truss butts up against another.
|
||||
// size = The length of each side of the cubetruss cubes. Default: `$cubetruss_size` (usually 30)
|
||||
// strut = The width of the struts on the cubetruss cubes. Default: `$cubetruss_strut_size` (usually 3)
|
||||
// Topics: Trusses
|
||||
function cubetruss_dist(cubes=0, gaps=0, size, strut) =
|
||||
let(
|
||||
size = is_undef(size)? $cubetruss_size : size,
|
||||
strut = is_undef(strut)? $cubetruss_strut_size : strut
|
||||
) cubes*(size-strut)+gaps*strut;
|
||||
|
||||
|
||||
|
||||
// vim: expandtab tabstop=4 shiftwidth=4 softtabstop=4 nowrap
|
||||
|
|
|
|||
Loading…
Reference in a new issue