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feat: got it. Growing algorithm works finally

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kellervater
2025-04-27 01:00:17 +02:00
parent ae9b343b40
commit 839ea944e9
1 changed files with 80 additions and 62 deletions
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142
models/flexmount/flexmount.scad
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@@ -3,20 +3,6 @@ include <BOSL2/std.scad>
$fn=100;
/* [Base] */
// If set to true, the mount will be fitted to align with the 10/19 inch HomRacker rackmount kit.
fit_to_rack=true;
/* [Device Measurements] */
// Width of the device in mm. Will determine how far apart the actual mounts are in width.
device_width=100
; // TODO test for zero cube
// Depth of the device in mm. Will determine how far apart the actual mounts are in depth.
device_depth=99;
// Height of the device in mm. Will determine how far apart the actual mounts are in height.
device_height=25.5;
/* [Hidden] */
// constants which shouldn't be changed
@@ -33,22 +19,44 @@ LOCK_PIN_SIDE=4; // mm
// lock pin edge distance
LOCK_PIN_EDGE_DISTANCE=5.5; // mm
/* [Base] */
// If set to true, the mount will be fitted to align with the 10/19 inch HomRacker rackmount kit.
//fit_to_rack=true;
/* [Device Measurements] */
// Width of the device in mm. Will determine how far apart the actual mounts are in width.
device_width=104.8 // [20:0.1:500]
; // TODO test for zero cube
// Depth of the device in mm. Will determine how far apart the actual mounts are in depth.
device_depth=105; // [54:0.1:500]
// Height of the device in mm. Will determine how far apart the actual mounts are in height.
device_height=25.5; // [15:0.1:500]
/* [Bracket] */
// Defines the bracket thickness on top of the device.
bracket_strength_top=7.5; // [4:0.1:20]
bracket_strength_sides=7.5; // [4:0.1:20]
// diff_width resembles the gap between the device and the mount. This gap will be filled with a cuboid
modulo_width=(BASE_UNIT - ( device_width + TOLERANCE ) % BASE_UNIT);
WIDTH_DIFF = modulo_width==15 ? 0 : modulo_width;
echo("Diff Width: ", WIDTH_DIFF);
mount_gap_filler_start=(device_width+TOLERANCE)/2;
echo("mount_gap_filler_start: ", mount_gap_filler_start);
echo("effective mount distance: ", device_width+WIDTH_DIFF+TOLERANCE);
// echo("mount_gap_filler_start: ", mount_gap_filler_start);
// echo("effective mount distance: ", device_width+WIDTH_DIFF+TOLERANCE);
// diff_depth resembles the
DEPTH_DIFF=device_depth % BASE_UNIT;
echo("Diff Depth: ", DEPTH_DIFF);
mount_offset_depth=(device_depth-DEPTH_DIFF-BASE_UNIT)/2;
echo("mount_offset_depth*2: ", mount_offset_depth*2);
/* Code */
// creates a bracket around the device with TOLERANCE as additional space and BASE_STRENGTH as the strength of the bracket
module bracket(width,depth,height) {
// Bracket
outer_width=width+BASE_STRENGTH*2;
outer_depth=depth+BASE_STRENGTH*2;
outer_width=width+BASE_STRENGTH*2+TOLERANCE;
outer_depth=depth+BASE_STRENGTH*2+TOLERANCE;
outer_height=height+BASE_STRENGTH;
intersection(){
difference() {
@@ -60,19 +68,19 @@ module bracket(width,depth,height) {
);
// Top Skeleton
cuboid(
size=[width-BASE_STRENGTH*2,depth-BASE_STRENGTH*2,outer_height],
size=[width-bracket_strength_top,depth-bracket_strength_top,outer_height],
anchor=BOTTOM,
chamfer=-CHAMFER, edges=[TOP]
);
// Bottom Recess
cuboid(
size=[outer_width,outer_depth,height-BASE_STRENGTH],
size=[outer_width,outer_depth,height-bracket_strength_sides],
anchor=BOTTOM
);
}
translate([0,0,outer_height])
cuboid(
size=[outer_width,outer_depth,BASE_STRENGTH*2],
size=[outer_width,outer_depth,bracket_strength_sides],
anchor=TOP,
chamfer=CHAMFER, edges=[BOTTOM]
);
@@ -89,48 +97,25 @@ module device(width,depth,height) {
);
}
module mount_rail(width,depth,chamfer=CHAMFER) {
difference(){
height=BASE_UNIT+TOLERANCE/2;
// outer
cuboid(
size=[width,depth,height],
anchor=TOP+LEFT,
chamfer=chamfer, edges=[FRONT,BACK], except=[TOP,LEFT]
);
// support recess
cuboid(
size=[width,BASE_UNIT+TOLERANCE,height],
anchor=TOP+LEFT
);
}
}
// Mount
module mount(){
depth=BASE_UNIT+BASE_STRENGTH*2+TOLERANCE;
gap_filler_width=WIDTH_DIFF/2;
gap_filler_width=(WIDTH_DIFF)/2;
// depth translation
translate([0,mount_offset_depth,0])
union(){
translate([mount_gap_filler_start,0,0])
// Mount
// Mirror the mount to create a symmetric mount
union(){
union(){
top_width=BASE_STRENGTH;
bottom_width=BASE_UNIT+top_width+gap_filler_width;
bottom_width=BASE_UNIT+gap_filler_width;
// Bridge
difference(){
cuboid_width = bottom_width-BASE_STRENGTH*2;
cuboid_chamfer = device_height < cuboid_width ? device_height : cuboid_width;
cuboid_width = bottom_width;
cuboid_chamfer = bottom_width;
prismoid(
size1 = [bottom_width, depth], // Bottom face: width 30, depth 60
size2 = [top_width, depth], // Top face: becomes a line segment (width 0)
@@ -140,19 +125,21 @@ module mount(){
//chamfer=CHAMFER/2,
anchor = BOTTOM+LEFT // Anchor bottom left
);
translate([BASE_STRENGTH,0,BASE_STRENGTH])
translate([0,0,BASE_STRENGTH])
cuboid(
size=[cuboid_width,BASE_UNIT,device_height],
anchor=BOTTOM+LEFT,
chamfer=cuboid_chamfer, edges=[LEFT], except=[TOP,RIGHT,FRONT,BACK]
chamfer=BASE_UNIT/2, edges=[BOTTOM], except=[RIGHT]
);
}
// Depth enforcement
depth_enforcement_x = BASE_STRENGTH-TOLERANCE/2;
depth_enforcement_x = BASE_STRENGTH;
depth_enforcemnt_y2 = BASE_UNIT*2;
prismoid(
size1 = [depth_enforcement_x, depth],
size2 = [depth_enforcement_x, depth+BASE_UNIT],
size2 = [depth_enforcement_x, depth_enforcemnt_y2],
shift = [0, (depth-depth_enforcemnt_y2)/2],
h = device_height,
chamfer=[CHAMFER,0,0,CHAMFER],
anchor = BOTTOM+LEFT
@@ -160,27 +147,58 @@ module mount(){
// Mount Rail with holes
difference(){
mount_rail(bottom_width,depth);
// Mount Rail
difference(){
height=BASE_UNIT+TOLERANCE/2;
// outer
cuboid(
size=[bottom_width,depth,height],
anchor=TOP+LEFT,
chamfer=CHAMFER, edges=[BOTTOM,RIGHT], except=[TOP]
);
// support recess
cuboid(
size=[bottom_width,BASE_UNIT+TOLERANCE,height],
anchor=TOP+LEFT
);
}
// holes
translate([bottom_width-LOCK_PIN_EDGE_DISTANCE,0,-LOCK_PIN_EDGE_DISTANCE])
translate([bottom_width-LOCK_PIN_EDGE_DISTANCE,0,-LOCK_PIN_EDGE_DISTANCE-TOLERANCE/2])
cuboid(
size=[LOCK_PIN_SIDE,depth,LOCK_PIN_SIDE],
anchor=TOP+RIGHT
);
}
}
}
}
module mirror_mount_x_plane(){
mount();
x_mirror_plane = [1,0,0];
mirror(x_mirror_plane) {
mount();
}
}
// Assembly
rotate([180,0,0])
union() {
difference() {
bracket(device_width,device_depth,device_height);
device(device_width,device_depth,device_height);
}
mount();
// Mount Right
mirror_mount_x_plane();
y_mirror_plane = [0,1,0];
mirror(y_mirror_plane) {
mirror_mount_x_plane();
}
}