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Tweaks to improve slider travel.

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Revar Desmera
2015-09-18 15:01:04 -07:00
parent 283d34a49a
commit e981a77c9e
7 changed files with 5502 additions and 4299 deletions
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3968
STLs/rail_motor_segment_parts.stl
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4306
STLs/rail_segment_parts.stl
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1450
STLs/sled_parts.stl
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3
rail_motor_segment_parts.scad
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@@ -10,7 +10,6 @@ module rail_motor_segment(explode=0, connectby="")
{
joiner_length = 8;
side_joiner_len = 10;
fillet = 1.0;
motor_width = nema_motor_width(17);
up(
@@ -66,7 +65,7 @@ module rail_motor_segment(explode=0, connectby="")
// Rails.
xspread(rail_spacing+joiner_width) {
up(rail_height+groove_height/2-0.05) {
rail(l=motor_rail_length, w=joiner_width, h=groove_height, fillet=fillet);
rail(l=motor_rail_length, w=joiner_width, h=groove_height);
}
}

3
rail_segment_parts.scad
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@@ -7,7 +7,6 @@ use <joiners.scad>
// connectby valid options: "", "fwd", "back"
module rail_segment(explode=0, connectby="")
{
fillet = 1.0;
side_joiner_len = 2;
up(
@@ -45,7 +44,7 @@ module rail_segment(explode=0, connectby="")
// Rails.
xspread(rail_spacing+joiner_width) {
up(rail_height+groove_height/2-0.05) {
rail(l=rail_length, w=joiner_width, h=groove_height, fillet=fillet);
rail(l=rail_length, w=joiner_width, h=groove_height);
}
}

2
sled_parts.scad
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@@ -94,7 +94,7 @@ module sled()
// sliders
xspread(rail_spacing+joiner_width) {
yspread(slider_spacing, n=slider_count) {
slider(l=slider_len, base=rail_offset, slop=printer_slop+0.1);
slider(l=slider_len, base=rail_offset, slop=2*printer_slop);
}
}
}

69
sliders.scad
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@@ -64,7 +64,7 @@ module slider(l=30, w=joiner_width, h=groove_height, base=10, wall=5, ang=groove
module rail(l=30, w=joiner_width, h=groove_height, fillet=1.5, ang=groove_angle)
module rail(l=30, w=joiner_width, h=groove_height, fillet=1.0, ang=groove_angle)
{
difference() {
// Rail backing.
@@ -89,41 +89,56 @@ module rail(l=30, w=joiner_width, h=groove_height, fillet=1.5, ang=groove_angle)
}
// fillets
endfacets = 3;
facelen = h/2/cos(ang);
inset = h/2*tan(ang);
yflip_copy() {
fwd(l/2) {
// top end fillets
up(h/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=12);
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);
}
}
}
}
// 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);
}
// 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);
}
}
}
}
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=12);
}
// 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);
}
}
}
}
@@ -138,7 +153,7 @@ module rail(l=30, w=joiner_width, h=groove_height, fillet=1.5, ang=groove_angle)
}
}
}
rail(l=30, fillet=1.5);
rail(l=30);
// vim: noexpandtab tabstop=4 shiftwidth=4 softtabstop=4 nowrap