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A bunch of miscellaneous changes

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TQ Hirsch
2022-03-05 00:01:29 +01:00
parent 270fbdcc43
commit e6d1c55073
4 changed files with 27 additions and 20 deletions
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0
TODO.md Normal file
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3
assembly.scad
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@@ -80,4 +80,5 @@ union() {
ysled_slider(spread=sled_ysize); ysled_slider(spread=sled_ysize);
translate([0, -1000, -1000]) translate([0, -1000, -1000])
cube([2000, 2000, 2000]); cube([2000, 2000, 2000]);
} }
*xsled2();

2
constants.scad
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@@ -14,5 +14,5 @@ cur_ypos = 140;
echo(str("Range = ", [ xsize - xmin * 2, ysize - ymin * 2 ])); echo(str("Range = ", [ xsize - xmin * 2, ysize - ymin * 2 ]));
$fs = 1.5; $fn = 60;
$include_substock = true; $include_substock = true;

42
parts.scad
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@@ -24,7 +24,7 @@ belt_height2 = belt_height1 + belt_width + 2;
// calculated // calculated
ysled_rail_spacing = (sled_ysize); ysled_rail_spacing = (sled_ysize);
motor_shaft_xoffset = (corner_size - wall_thickness) / 2; motor_shaft_xoffset = (corner_size - wall_thickness) / 2 + 1;
motor_mount_length_adjustment = 4; motor_mount_length_adjustment = 4;
motor_mount_length = nema17_face + wall_thickness + motor_mount_length_adjustment; motor_mount_length = nema17_face + wall_thickness + motor_mount_length_adjustment;
@@ -95,7 +95,9 @@ module ysled_slider(spread, associated_parts = $preview, is_left=true) {
sled_height = frame_size; sled_height = frame_size;
idler_spacing = spread / 3; idler_spacing = spread / 3;
colorize("green") render() translate([ 0, -sled_len / 2, 0 ]) local_idler_xoffset = pulley_sbend_offset - yrail_offset + motor_shaft_xoffset;
echo("LIX:", local_idler_xoffset)
colorize("green") translate([ 0, -sled_len / 2, 0 ])
rotate([ -90, 0, 0 ]) { rotate([ -90, 0, 0 ]) {
difference() { difference() {
union() { union() {
@@ -107,9 +109,13 @@ module ysled_slider(spread, associated_parts = $preview, is_left=true) {
-frame_size / 2, 0 -frame_size / 2, 0
]) cube([ frame_size + 5, frame_size, sled_len ]); ]) cube([ frame_size + 5, frame_size, sled_len ]);
} }
cylinder(d = bushing_id * 1.1, h = sled_len); for (y = [idler_spacing/2, -idler_spacing/2]) {
rotate([90, 0, 0])
translate([local_idler_xoffset, sled_len/2 + y, 0])
cylinder(d=3, h = frame_size);
}
cylinder(d = rail_diam * 1.5, h = sled_len);
translate([ 0, 0, -1 ]) cylinder(d = bushing_od, h = bushing_len + 1); translate([ 0, 0, -1 ]) cylinder(d = bushing_od, h = bushing_len + 1);
translate([ 0, 0, sled_len - bushing_len ]) translate([ 0, 0, sled_len - bushing_len ])
cylinder(d = bushing_od, h = bushing_len + 1); cylinder(d = bushing_od, h = bushing_len + 1);
@@ -125,21 +131,20 @@ module ysled_slider(spread, associated_parts = $preview, is_left=true) {
// color("#f00") // color("#f00")
translate( translate(
[ pulley_sbend_offset - yrail_offset + motor_shaft_xoffset, 0, frame_size/2 ]) { [ local_idler_xoffset, 0, frame_size/2 - 1 ]) {
translate([ 0, idler_spacing / 2, 0 ]) { translate([ 0, idler_spacing / 2, 0 ]) {
idler_post(belt_height = belt_height1 - frame_size/2, toothed = is_left); idler_post(belt_height = belt_height1 - frame_size/2 + 1, toothed = is_left);
} }
translate([ 0, -idler_spacing / 2, 0 ]) { translate([ 0, -idler_spacing / 2, 0 ]) {
*cylinder(d = 3, h = 30, $fs = 1); rotate([ 0, 0, -90 ]) { idler_post(belt_height = belt_height2 - frame_size/2 + 1, toothed = !is_left); }
*idler(belt_height2);
rotate([ 0, 0, -90 ]) { idler_post(belt_height = belt_height2 - frame_size/2, toothed = !is_left); }
} }
} }
translate([ 0, -sled_len / 2, 0 ]) if ($preview) {
rotate([ -90, 0, 0 ]) if (associated_parts) { translate([ 0, -sled_len / 2, 0 ]) rotate([ -90, 0, 0 ])
bushing(); bushing();
translate([ 0, 0, sled_len - bushing_len ]) bushing(); translate([ 0, sled_len / 2, 0 ]) rotate([ 90, 0, 0 ])
bushing();
} }
} }
@@ -207,11 +212,12 @@ module idler_post(belt_height, toothed = true) {
cube([ post_radius * 2, post_radius * 2, slot_height ]); cube([ post_radius * 2, post_radius * 2, slot_height ]);
} }
cylinder(d = 3, h = total_height + 1, $fn = 60); cylinder(d = 3, h = total_height + 1, $fn = 30);
translate([ 0, 0, total_height - 2 ]) cylinder(r = 3, h = 3); translate([ 0, 0, total_height - 2 ]) cylinder(r = 3, h = 3);
} }
if($preview) {
idler(height = belt_height, toothed=toothed); idler(height = belt_height, toothed=toothed);
}
} }
module flcorner() { module flcorner() {
@@ -419,7 +425,7 @@ module xsled2() {
cylinder(d = tab_thickness, h = tab_len); cylinder(d = tab_thickness, h = tab_len);
translate( translate(
[ -tab_thickness / 2, ysign > 0 ? -tab_thickness / 2 : 0, 0 ]) [ -tab_thickness / 2, ysign > 0 ? -tab_thickness / 2 : 0, 0 ])
cube([ tab_thickness, tab_thickness / 2, tab_len ]); cube([ tab_thickness, tab_thickness / 2 + 1, tab_len ]);
} }
translate([ 0, 0, -0.5 ]) { translate([ 0, 0, -0.5 ]) {
cylinder(d = bushing_od, h = bushing_len + 0.5); cylinder(d = bushing_od, h = bushing_len + 0.5);