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Fixed anchoring of cubetruss_corner()

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Garth Minette 2021-06-07 20:46:50 -07:00
parent 3aabe3ffde
commit c7073a47b2
2 changed files with 5 additions and 4 deletions
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3
attachments.scad
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@ -448,7 +448,8 @@ function attach_transform(anchor, spin, orient, geom, p) =
function find_anchor(anchor, geom) = function find_anchor(anchor, geom) =
let( let(
cp = select(geom,-3), cp = select(geom,-3),
offset = anchor==CENTER? CENTER : select(geom,-2), offset_raw = select(geom,-2),
offset = [for (i=[0:2]) anchor[i]==0? 0 : offset_raw[i]], // prevents bad centering.
anchors = last(geom), anchors = last(geom),
type = geom[0] type = geom[0]
) )

6
cubetruss.scad
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@ -512,12 +512,12 @@ module cubetruss_corner(h=1, extents=[1,1,0,0,1], bracing, size, strut, clipthic
bracing = is_undef(bracing)? $cubetruss_bracing : bracing; bracing = is_undef(bracing)? $cubetruss_bracing : bracing;
clipthick = is_undef(clipthick)? $cubetruss_clip_thickness : clipthick; clipthick = is_undef(clipthick)? $cubetruss_clip_thickness : clipthick;
exts = is_vector(extents)? list_fit(extents,5,fill=0) : [extents, extents, 0, 0, extents]; exts = is_vector(extents)? list_fit(extents,5,fill=0) : [extents, extents, 0, 0, extents];
s = [cubetruss_dist(1+exts[0]+exts[2],1), cubetruss_dist(1+exts[1]+exts[3],1), cubetruss_dist(h+exts[4],1)]; 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(exts[4],0)]/2; 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) { attachable(anchor,spin,orient, size=s, offset=offset) {
union() { union() {
for (zcol = [0:h-1]) { for (zcol = [0:h-1]) {
up((size-strut+0.01)*zcol) { up((size-strut)*zcol) {
cubetruss_segment(size=size, strut=strut, bracing=bracing); cubetruss_segment(size=size, strut=strut, bracing=bracing);
} }
} }