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Fudge with new rails to match slightly incorrect sliders.

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Revar Desmera
2017-05-13 15:20:17 -07:00
parent 0579df051a
commit 35a5b2608a
4 changed files with 1521 additions and 1530 deletions
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1366
STLs/rail_segment_parts.stl
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File diff suppressed because it is too large Load Diff

1528
STLs/rail_xy_motor_segment_parts.stl
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File diff suppressed because it is too large Load Diff

28
STLs/z_rail_parts.stl
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@@ -1483,6 +1483,13 @@ solid Model
vertex 32.5 -63.358 0.05
endloop
endfacet
facet normal 0 0 0
outer loop
vertex 32.5 -62.275 0
vertex 32.5 -62.275 0.05
vertex 32.5 -62.275 5
endloop
endfacet
facet normal 0 0 0
outer loop
vertex 32.5 62.275 0
@@ -1511,13 +1518,6 @@ solid Model
vertex -42.5 62.275 0.05
endloop
endfacet
facet normal 0 0 0
outer loop
vertex 32.5 -62.275 0
vertex 32.5 -62.275 0.05
vertex 32.5 -62.275 22
endloop
endfacet
facet normal 1 0 0
outer loop
vertex 32.5 -67.75 0
@@ -1945,13 +1945,6 @@ solid Model
vertex -32 62.458 9.167
endloop
endfacet
facet normal 0 0 0
outer loop
vertex 32.5 -62.275 0
vertex 32.5 -62.275 22
vertex 32.5 -62.275 5
endloop
endfacet
facet normal 1 0 0
outer loop
vertex -27.5 -67.75 0
@@ -2883,6 +2876,13 @@ solid Model
vertex -32.5 64.863 5
endloop
endfacet
facet normal 0 0 0
outer loop
vertex 32.5 -62.275 0.05
vertex 32.5 -62.275 22
vertex 32.5 -62.275 5
endloop
endfacet
facet normal 0 0 0
outer loop
vertex 32.5 62.275 0.05

129
sliders.scad
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@@ -69,18 +69,23 @@ module rail(l=30, w=joiner_width, h=groove_height, chamfer=1.0, ang=groove_angle
attack_ang = 30;
attack_len = 2;
fudge = 1.177;
chamf = sqrt(2) * chamfer;
cosa = cos(ang*fudge);
sina = sin(ang*fudge);
z1 = h/2;
z2 = z1 - chamfer * cos(ang);
z2 = z1 - chamf * cosa;
z3 = z1 - attack_len * sin(attack_ang);
z4 = 0;
x1 = w/2;
x2 = x1 - chamfer * sin(ang);
x3 = x1 - chamfer;
x2 = x1 - chamf * sina;
x3 = x1 - chamf;
x4 = x1 - attack_len * sin(attack_ang);
x5 = x2 - attack_len * sin(attack_ang);
x6 = x1 - z1 * sin(ang);
x7 = x4 - z1 * sin(ang);
x6 = x1 - z1 * sina;
x7 = x4 - z1 * sina;
y1 = l/2;
y2 = y1 - attack_len * cos(attack_ang);
@@ -91,32 +96,32 @@ module rail(l=30, w=joiner_width, h=groove_height, chamfer=1.0, ang=groove_angle
[-x5, -y1, z3],
[ x5, -y1, z3],
[ x7, -y1, z4],
[ x4, -y1, -z1],
[-x4, -y1, -z1],
[ x4, -y1, -z1-0.05],
[-x4, -y1, -z1-0.05],
[-x7, -y1, z4],
[-x3, -y2, z1],
[ x3, -y2, z1],
[ x2, -y2, z2],
[ x6, -y2, z4],
[ x1, -y2, -z1],
[-x1, -y2, -z1],
[ x1, -y2, -z1-0.05],
[-x1, -y2, -z1-0.05],
[-x6, -y2, z4],
[-x2, -y2, z2],
[ x5, y1, z3],
[-x5, y1, z3],
[-x7, y1, z4],
[-x4, y1, -z1],
[ x4, y1, -z1],
[-x4, y1, -z1-0.05],
[ x4, y1, -z1-0.05],
[ x7, y1, z4],
[ x3, y2, z1],
[-x3, y2, z1],
[-x2, y2, z2],
[-x6, y2, z4],
[-x1, y2, -z1],
[ x1, y2, -z1],
[-x1, y2, -z1-0.05],
[ x1, y2, -z1-0.05],
[ x6, y2, z4],
[ x2, y2, z2],
],
@@ -183,5 +188,103 @@ module rail(l=30, w=joiner_width, h=groove_height, chamfer=1.0, ang=groove_angle
//!rail(l=30, w=joiner_width, h=groove_height);
module old_rail(l=30, w=joiner_width, h=groove_height, fillet=1.0, ang=groove_angle)
{
difference() {
// Rail backing.
down(0.05/2) cube(size=[w, l, h+0.05], center=true);
xflip_copy() {
left(w/2) {
up(h/2) {
zflip() {
xrot(90) fillet_planes_joint_mask(h=l+1, r=fillet, ang=90-ang, $fn=6);
}
}
}
}
// Rail grooves.
xflip_copy() {
right(w/2) {
// main groove
scale([tan(ang),1,1]) yrot(45) {
cube(size=[h*sqrt(2)/2,l+1,h*sqrt(2)/2], center=true);
}
// fillets
endfacets = 1;
facelen = h/2/cos(ang);
inset = h/2*tan(ang);
yflip_copy() {
fwd(l/2) {
scale([1, 2, 1]) {
up(h/2) {
// top end fillets
difference() {
cube([w*2, fillet*2, fillet*2], center=true);
back(fillet) down(fillet) {
yrot(90) cylinder(r=fillet, h=w*3, center=true, $fn=endfacets*4);
}
}
// top corner end fillets
down(fillet/sin(ang)) {
yrot(45+ang/2) {
difference() {
cube([w*2, fillet*2, fillet*2], center=true);
back(fillet) down(fillet) {
yrot(90) cylinder(r=fillet, h=w*3, center=true, $fn=endfacets*4);
}
}
}
}
}
// groove fillets
left(inset) {
difference() {
zflip_copy() {
left(fillet/cos(ang)) {
yrot(-ang) {
right(fillet) {
down(facelen*1.5/2) {
cube([fillet*2, fillet*2, facelen*1.5], center=true);
}
}
}
}
}
zflip_copy() {
left(fillet/cos(ang)) {
yrot(-ang) {
right(fillet) {
down(facelen) {
back(fillet) left(fillet) {
cylinder(r=fillet, h=facelen*3, center=true, $fn=endfacets*4);
}
}
}
}
}
}
}
}
}
}
}
}
}
}
}
/*
difference() {
rail(l=30, w=joiner_width, h=groove_height, chamfer=1.0, ang=groove_angle);
old_rail(l=30, w=joiner_width, h=groove_height, fillet=1.0, ang=groove_angle);
}
*/
// vim: noexpandtab tabstop=4 shiftwidth=4 softtabstop=4 nowrap