Charavane/gridfinity-rebuilt-openscad
1
0
Fork 1
mirror of https://github.com/kennetek/gridfinity-rebuilt-openscad.git synced 2025-01-08 15:19:43 +00:00
Code Issues Projects Releases Packages Wiki Activity

feat: support extending grid with partial bases

Browse source
This commit is contained in:
pimlie 2024-12-09 23:35:13 +01:00
parent e1e5dcc49e
commit c0a34d6fce
4 changed files with 259 additions and 55 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

25
gridfinity-rebuilt-bins.scad
View file

@ -40,6 +40,11 @@ gridx = 3; //.5
gridy = 2; //.5
// bin height. See bin height information and "gridz_define" below.
gridz = 6; //.1
/* [General Advanced Settings] */
// extend width (in mm, negative is to left, pos to right)
extrax=0; // [-41.99:0.01:41.99]
// extend length (in mm, negative is to left, pos to right)
extray=0; // [-41.99:0.01:41.99]
/* [Linear Compartments] */
// number of X Divisions (set to zero to have solid bin)
@ -63,6 +68,13 @@ c_depth = 1;
// chamfer around the top rim of the holes
c_chamfer = 0.5; // .1
/* [Split Compartments] */
// divide into 2 compartments by this ratio
ratiox = 0; // [0:0.001:1]
// divide into 2 compartments by this ratio
ratioy = 0; // [0:0.001:1]
/* [Height] */
// determine what the variable "gridz" applies to based on your use case
gridz_define = 0; // [0:gridz is the height of bins in units of 7mm increments - Zack's method,1:gridz is the internal height in millimeters, 2:gridz is the overall external height of the bin in millimeters]
@ -98,24 +110,31 @@ chamfer_holes = true;
printable_hole_top = true;
// Enable "gridfinity-refined" thumbscrew hole in the center of each base: https://www.printables.com/model/413761-gridfinity-refined
enable_thumbscrew = false;
// Align holes to the left of the base for half grid bases
half_grid_hole_alignment = 0; // [0: Upper left corner, 1: Base pattern but left aligned, 2: Normal base pattern]
hole_options = bundle_hole_options(refined_holes, magnet_holes, screw_holes, crush_ribs, chamfer_holes, printable_hole_top);
// ===== IMPLEMENTATION ===== //
color("tomato") {
gridfinityInit(gridx, gridy, height(gridz, gridz_define, style_lip, enable_zsnap), height_internal, sl=style_lip) {
gridfinityInit(gridx, gridy, height(gridz, gridz_define, style_lip, enable_zsnap), height_internal, sl=style_lip, extra=[extrax,extray]) {
if (divx > 0 && divy > 0) {
if ((ratiox > 0 && ratiox < 1) || (ratioy > 0 && ratioy < 1)) {
cutByRatio(rx = ratiox, ry = ratioy, style_tab = style_tab, scoop_weight = scoop, place_tab = place_tab);
} else if (divx > 0 && divy > 0) {
cutEqual(n_divx = divx, n_divy = divy, style_tab = style_tab, scoop_weight = scoop, place_tab = place_tab);
} else if (cdivx > 0 && cdivy > 0) {
cutCylinders(n_divx=cdivx, n_divy=cdivy, cylinder_diameter=cd, cylinder_height=ch, coutout_depth=c_depth, orientation=c_orientation, chamfer=c_chamfer);
}
}
gridfinityBase([gridx, gridy], hole_options=hole_options, only_corners=only_corners, thumbscrew=enable_thumbscrew);
gridfinityBase([gridx, gridy], hole_options=hole_options, only_corners=only_corners, thumbscrew=enable_thumbscrew, half_grid_hole_alignment=half_grid_hole_alignment, extra=[extrax, extray]);
}

278
src/core/gridfinity-rebuilt-utility.scad
View file

@ -77,14 +77,27 @@ module cutEqual(n_divx=1, n_divy=1, style_tab=1, scoop_weight=1, place_tab=1) {
for (i = [1:n_divx])
for (j = [1:n_divy])
{
if (
place_tab == 1 && (i != 1 || j != n_divy) // Top-Left Division
) {
cut((i-1)*$gxx/n_divx,(j-1)*$gyy/n_divy, $gxx/n_divx, $gyy/n_divy, 5, scoop_weight);
}
else {
cut((i-1)*$gxx/n_divx,(j-1)*$gyy/n_divy, $gxx/n_divx, $gyy/n_divy, style_tab, scoop_weight);
}
// disable style_tab if only Top-Left Division checked
tab_style = place_tab == 1 && (i != 1 || j != n_divy) ? 5 : style_tab;
// equally divide extra dimensions
ex=(i - 1)*$extrax/n_divx;
ey=(j - 1)*$extray/n_divy;
cut(
(i-1)*$gxx/n_divx,
(j-1)*$gyy/n_divy,
$gxx/n_divx,
$gyy/n_divy,
tab_style,
scoop_weight,
offsets=[
$extrax < 0 ? $extrax-ex : ex,
$extray < 0 ? $extray-ey : ey,
abs($extrax)/n_divx,
abs($extray)/n_divy
]
);
}
}
@ -135,22 +148,61 @@ module cutCylinders(n_divx=1, n_divy=1, cylinder_diameter=1, cylinder_height=1,
}
}
// Create two or four cutters for the bin divided by the given ratio (max 4 cutouts per bin)
//
// rx: ratio to divide x-axis by
// ry: ratio to divide y-axis by
// style_tab: tab style for all compartments. see cut()
// scoop_weight: scoop toggle for all compartments. see cut()
// place_tab: tab suppression for all compartments. see "gridfinity-rebuilt-bins.scad"
module cutByRatio(rx=1, ry=1, style_tab=1, scoop_weight=1, place_tab=1) {
n_divx=rx > 0 && rx < 1 ? 2 : 1;
n_divy=ry > 0 && ry < 1 ? 2 : 1;
// opposite cut ratio
orx=1 - rx;
ory=1 - ry;
for (i = [1:n_divx])
for (j = [1:n_divy]) {
// disable style_tab if only Top-Left Division checked
tab_style=place_tab == 1 && (i != 1 || j != n_divy) ? 5 : style_tab;
cut(
(i - 1)*rx*$gxx,
(j - 1)*ry*$gyy,
(i == 1 ? rx : orx)*$gxx,
(j == 1 ? ry : ory)*$gyy,
tab_style,
scoop_weight,
offsets=[
($extrax < 0 ? (i == 1 ? 1 : orx) : (i-1)*rx)*$extrax,
($extray < 0 ? (j == 1 ? 1 : ory) : (j-1)*ry)*$extray,
(i == 1 ? rx : orx)*abs($extrax),
(j == 1 ? ry : ory)*abs($extray)
]
);
}
}
// initialize gridfinity
// sl: lip style of this bin.
// 0:Regular lip, 1:Remove lip subtractively, 2:Remove lip and retain height
module gridfinityInit(gx, gy, h, h0 = 0, l = l_grid, sl = 0) {
module gridfinityInit(gx, gy, h, h0 = 0, l = l_grid, sl = 0, extra=[0,0]) {
$gxx = gx;
$gyy = gy;
$dh = h;
$dh0 = h0;
$style_lip = sl;
$extrax=extra[0];
$extray=extra[1];
difference() {
color("firebrick")
block_bottom(h0==0?$dh-0.1:h0, gx, gy, l);
block_bottom(h0==0?$dh-0.1:h0, gx, gy, l, extra=extra);
children();
}
color("royalblue")
block_wall(gx, gy, l) {
block_wall(gx, gy, l, extra=extra) {
if ($style_lip == 0) profile_wall(h);
else profile_wall2(h);
}
@ -167,11 +219,18 @@ module gridfinityInit(gx, gy, h, h0 = 0, l = l_grid, sl = 0) {
// 0:full, 1:auto, 2:left, 3:center, 4:right, 5:none
// Automatic alignment will use left tabs for bins on the left edge, right tabs for bins on the right edge, and center tabs everywhere else.
// s: toggle the rounded back corner that allows for easy removal
module cut(x=0, y=0, w=1, h=1, t=1, s=1, tab_width=d_tabw, tab_height=d_tabh) {
// offsets: the [x,y,w,h] offsets of the current cut to accomodate the extra x/y dimensions
module cut(x=0, y=0, w=1, h=1, t=1, s=1, tab_width=d_tabw, tab_height=d_tabh, offsets=[0,0,0,0]) {
translate([0, 0, -$dh - BASE_HEIGHT])
cut_move(x,y,w,h)
block_cutter(clp(x,0,$gxx), clp(y,0,$gyy), clp(w,0,$gxx-x), clp(h,0,$gyy-y), t, s, tab_width, tab_height);
cut_move(x,y,w,h,offsets)
block_cutter(
clp(x,0,$gxx),
clp(y,0,$gyy),
clp(w,0,$gxx-x),
clp(h,0,$gyy-y),
t, s, tab_width, tab_height,
offsets=offsets
);
}
@ -208,9 +267,15 @@ module cutEqualBins(bins_x=1, bins_y=1, len_x=1, len_y=1, pos_x=0, pos_y=0, styl
// Translates an object from the origin point to the center of the requested compartment block, can be used to add custom cuts in the bin
// See cut() module for parameter descriptions
module cut_move(x, y, w, h) {
module cut_move(x, y, w, h, offsets=[0,0,0,0]) {
translate([0, 0, ($dh0==0 ? $dh : $dh0) + BASE_HEIGHT])
cut_move_unsafe(clp(x,0,$gxx), clp(y,0,$gyy), clp(w,0,$gxx-x), clp(h,0,$gyy-y))
cut_move_unsafe(
clp(x,0,$gxx),
clp(y,0,$gyy),
clp(w,0,$gxx-x),
clp(h,0,$gyy-y),
offsets
)
children();
}
@ -222,7 +287,7 @@ module cut_move(x, y, w, h) {
* @param grid_dimensions [length, width] of a single Gridfinity base.
* @param thumbscrew Enable "gridfinity-refined" thumbscrew hole in the center of each base unit. This is a ISO Metric Profile, 15.0mm size, M15x1.5 designation.
*/
module gridfinityBase(grid_size, grid_dimensions=GRID_DIMENSIONS_MM, hole_options=bundle_hole_options(), off=0, final_cut=true, only_corners=false, thumbscrew=false) {
module gridfinityBase(grid_size, grid_dimensions=GRID_DIMENSIONS_MM, hole_options=bundle_hole_options(), off=0, final_cut=true, only_corners=false, thumbscrew=false, half_grid_hole_alignment=0, extra=[0,0]) {
assert(is_list(grid_dimensions) && len(grid_dimensions) == 2 &&
grid_dimensions.x > 0 && grid_dimensions.y > 0);
assert(is_list(grid_size) && len(grid_size) == 2 &&
@ -233,6 +298,9 @@ module gridfinityBase(grid_size, grid_dimensions=GRID_DIMENSIONS_MM, hole_option
is_bool(thumbscrew)
);
extrax=extra[0];
extray=extra[1];
// Per spec, there's a 0.5mm gap between each base.
// This must be kept constant or half bins may not work correctly.
gap_mm = GRID_DIMENSIONS_MM - BASE_TOP_DIMENSIONS;
@ -260,8 +328,8 @@ module gridfinityBase(grid_size, grid_dimensions=GRID_DIMENSIONS_MM, hole_option
// Top which ties all bases together
if (final_cut) {
translate([0, 0, BASE_HEIGHT])
rounded_square([grid_size_mm.x, grid_size_mm.y, h_bot], BASE_TOP_RADIUS, center=true);
translate([extrax/2, extray/2, BASE_HEIGHT])
rounded_square([grid_size_mm.x+abs(extrax), grid_size_mm.y+abs(extray), h_bot], BASE_TOP_RADIUS, center=true);
}
if(only_corners) {
@ -283,7 +351,53 @@ module gridfinityBase(grid_size, grid_dimensions=GRID_DIMENSIONS_MM, hole_option
}
else {
pattern_linear(final_grid_size.x, final_grid_size.y, base_center_distance_mm.x, base_center_distance_mm.y)
block_base(hole_options, off, individual_base_size_mm, thumbscrew=thumbscrew);
block_base(
hole_options, off, individual_base_size_mm, thumbscrew=thumbscrew,
directions=[
$is_odd_x || half_grid_hole_alignment != 2 ? 1 : -1,
$is_odd_y || half_grid_hole_alignment == 0 ? 1 : -1]
);
}
// check if we should extend the base to accomodate extra x/y
add_to_x=extrax != 0 && abs(extrax) > BASE_TOP_RADIUS*2;
add_to_y=extray != 0 && abs(extray) > BASE_TOP_RADIUS*2;
if (!add_to_x && extrax != 0) {
echo("WARNING: extrax should be at least 2*BASE_TOP_RADIUS to be able to add a bottom notch");
}
if (!add_to_y && extray != 0) {
echo("WARNING: extray should be at least 2*BASE_TOP_RADIUS to be able to add a bottom notch");
}
// configure where to add extra bases
extra_bases=[
add_to_x ? [1,0] : undef,
add_to_y ? [0,1] : undef,
add_to_x && add_to_y ? [1,1] : undef,
];
for(base=extra_bases) {
if (base != undef) {
assert(len(base) == 2, "extra_bases should have a length of 2");
base_size_mm = [
base[0] == 1 ? abs(extrax) : individual_base_size_mm[0],
base[1] == 1 ? abs(extray) : individual_base_size_mm[1]
];
translate([
base[0] * (final_grid_size.x/2 * base_center_distance_mm.x * sign(extrax) + extrax/2),
base[1] * (final_grid_size.y/2 * base_center_distance_mm.y * sign(extray) + extray/2)
])
pattern_linear(
base[0] == 1 ? 1 : final_grid_size.x,
base[1] == 1 ? 1 : final_grid_size.y,
base_center_distance_mm.x,
base_center_distance_mm.y
)
block_base(hole_options, off, base_size_mm, thumbscrew=thumbscrew, directions=[sign(extrax),1]);
}
}
}
@ -405,21 +519,46 @@ module _base_thumbscrew() {
* @details Need this fancy code to support refined holes and non-square bases.
* @param hole_options @see bundle_hole_options
* @param offset @see block_base_hole.offset
* @param directions The directions into which the base/hole are added
*/
module _base_holes(hole_options, offset=0, top_dimensions=BASE_TOP_DIMENSIONS) {
module _base_holes(hole_options, offset=0, top_dimensions=BASE_TOP_DIMENSIONS, directions=[1,1]) {
hole_position = foreach_add(
base_bottom_dimensions(top_dimensions)/2,
-HOLE_DISTANCE_FROM_BOTTOM_EDGE
);
for(a=[0:90:270]){
// i and j represent the 4 quadrants.
// The +1 is used to keep any values from being exactly 0.
j = sign(sin(a+1));
i = sign(cos(a+1));
translate([i * hole_position.x, j * hole_position.y, 0])
rotate([0, 0, a])
block_base_hole(hole_options, offset);
// calculate the minimum required dimensions that are needed to add a hole
base_hole_pos = _base_hole_position(hole_options);
has_min_x = top_dimensions.x >= 2*base_hole_pos[0] + base_hole_pos[2];
has_min_y = top_dimensions.y >= 2*base_hole_pos[1] + base_hole_pos[3];
is_full_x = top_dimensions.x == BASE_TOP_DIMENSIONS.x;
is_full_y = top_dimensions.y == BASE_TOP_DIMENSIONS.y;
// don't print any holes if the base is too small
if (has_min_x && has_min_y) {
angles = concat(
is_full_x ? [0, 180] : [],
is_full_y ? [90, 270] : [],
has_min_x
? (directions[0] == 1 ? [0] : [270])
: (directions[1] == 1 ? [180] : [90])
);
for(a=angles){
// i and j represent the 4 quadrants.
// The +1 is used to keep any values from being exactly 0.
// Don't rotate each hole when base does not span full size,
// to better fit refined holes
j = is_full_y ? sign(sin(a+1)) : -sign(directions[1]);
i = is_full_x ? sign(cos(a+1)) : -sign(directions[0]);
x = i * hole_position.x;
y = j * hole_position.y;
translate([x, y, 0])
rotate([0, 0, a])
block_base_hole(hole_options, offset);
}
}
}
@ -429,8 +568,9 @@ module _base_holes(hole_options, offset=0, top_dimensions=BASE_TOP_DIMENSIONS) {
* @param offset Grows or shrinks the final shapes. Similar to `scale`, but in mm.
* @param top_dimensions [x, y] size of a single base. Only set if deviating from the standard!
* @param thumbscrew Enable "gridfinity-refined" thumbscrew hole in the center of each base unit. This is a ISO Metric Profile, 15.0mm size, M15x1.5 designation.
* @param directions The directions into which the base/hole are added
*/
module block_base(hole_options, offset=0, top_dimensions=BASE_TOP_DIMENSIONS, thumbscrew=false) {
module block_base(hole_options, offset=0, top_dimensions=BASE_TOP_DIMENSIONS, thumbscrew=false, directions=[1,1]) {
assert(is_list(top_dimensions) && len(top_dimensions) == 2);
assert(is_bool(thumbscrew));
@ -442,7 +582,7 @@ module block_base(hole_options, offset=0, top_dimensions=BASE_TOP_DIMENSIONS, th
if (thumbscrew) {
_base_thumbscrew();
}
_base_holes(hole_options, offset, top_dimensions);
_base_holes(hole_options, offset, top_dimensions, directions);
_base_preview_fix();
}
}
@ -472,6 +612,26 @@ module base_outer_shell(wall_thickness, bottom_thickness, top_dimensions=BASE_TO
}
}
/**
* @brief Internal code. Calculate base hole position & dimension.
* @param hole_options @see block_base_hole.hole_options
* @details Position is from edge not center, used to position holes on partial bases
*/
function _base_hole_position(hole_options) =
let(
refined_hole = hole_options[0],
magnet_hole = hole_options[1],
chamfer = hole_options[4],
magnet_hole_size = 2*(MAGNET_HOLE_RADIUS + (chamfer ? CHAMFER_ADDITIONAL_RADIUS : 0)),
)
// Treat magnet & refined holes the same (i.e. don't care about the poke through of refined holes)
magnet_hole || refined_hole ? [
HOLE_DISTANCE_FROM_BOTTOM_EDGE, // x
HOLE_DISTANCE_FROM_BOTTOM_EDGE, // y
magnet_hole_size, // w
magnet_hole_size // l
] : [0,0,0,0];
/**
* @brief Internal code. Fix base preview rendering issues.
* @details Preview does not like perfect top/bottoms.
@ -564,28 +724,41 @@ module profile_wall2(height_mm) {
square([d_wall, height_mm]);
}
module block_wall(gx, gy, l) {
translate([0, 0, BASE_HEIGHT])
sweep_rounded([gx*l-2*r_base-0.5-0.001, gy*l-2*r_base-0.5-0.001])
module block_wall(gx, gy, l, extra=[0,0]) {
extrax=extra[0];
extray=extra[1];
translate([extrax/2, extray/2, BASE_HEIGHT])
sweep_rounded([
gx*l-2*r_base-0.5-0.001+abs(extrax),
gy*l-2*r_base-0.5-0.001+abs(extray)
])
children();
}
module block_bottom( h = 2.2, gx, gy, l ) {
translate([0, 0, BASE_HEIGHT + 0.1])
rounded_rectangle(gx*l-0.5-d_wall/4, gy*l-0.5-d_wall/4, h, r_base+0.01);
module block_bottom(h = 2.2, gx, gy, l, extra=[0,0]) {
extrax=extra[0];
extray=extra[1];
translate([extrax/2, extray/2, BASE_HEIGHT + 0.1])
rounded_rectangle(
gx*l-0.5-d_wall/4+abs(extrax),
gy*l-0.5-d_wall/4+abs(extray),
h,
r_base+0.01
);
}
module cut_move_unsafe(x, y, w, h) {
module cut_move_unsafe(x, y, w, h, offsets=[0,0,0,0]) {
xx = ($gxx*l_grid+d_magic);
yy = ($gyy*l_grid+d_magic);
translate([(x)*xx/$gxx,(y)*yy/$gyy,0])
translate([(-xx+d_div)/2,(-yy+d_div)/2,0])
translate([(w*xx/$gxx-d_div)/2,(h*yy/$gyy-d_div)/2,0])
translate([(w*xx/$gxx-d_div)/2+offsets[0],(h*yy/$gyy-d_div)/2+offsets[1],0])
children();
}
module block_cutter(x,y,w,h,t,s,tab_width=d_tabw,tab_height=d_tabh) {
module block_cutter(x,y,w,h,t,s,tab_width=d_tabw,tab_height=d_tabh, offsets=[0,0,0,0]) {
v_len_tab = tab_height;
v_len_lip = d_wall2-d_wall+1.2;
v_cut_tab = tab_height - (2*STACKING_LIP_FILLET_RADIUS)/tan(a_tab);
@ -599,8 +772,8 @@ module block_cutter(x,y,w,h,t,s,tab_width=d_tabw,tab_height=d_tabh) {
xcutlast = abs(x+w-$gxx)<0.001 && $style_lip == 0;
zsmall = ($dh+BASE_HEIGHT)/7 < 3;
ylen = h*($gyy*l_grid+d_magic)/$gyy-d_div;
xlen = w*($gxx*l_grid+d_magic)/$gxx-d_div;
ylen = h*($gyy*l_grid+d_magic)/$gyy-d_div+offsets[3];
xlen = w*($gxx*l_grid+d_magic)/$gxx-d_div+offsets[2];
height = $dh;
extent = (abs(s) > 0 && ycutfirst ? d_wall2-d_wall-d_clear : 0);
@ -609,7 +782,7 @@ module block_cutter(x,y,w,h,t,s,tab_width=d_tabw,tab_height=d_tabh) {
cut = (zsmall || t == 5) ? (ycutlast?v_cut_lip:0) : v_cut_tab;
style = (t > 1 && t < 5) ? t-3 : (x == 0 ? -1 : xcutlast ? 1 : 0);
translate([0, ylen/2, BASE_HEIGHT+h_bot])
translate([offsets[2]/2, ylen/2+offsets[3]/2, BASE_HEIGHT+h_bot])
rotate([90,0,-90]) {
if (!zsmall && xlen - tab_width > 4*r_f2 && (t != 0 && t != 5)) {
@ -627,6 +800,7 @@ module block_cutter(x,y,w,h,t,s,tab_width=d_tabw,tab_height=d_tabh) {
translate([0,0,-(xlen/2-r_f2)-v_cut_lip])
cube([ylen,height,v_cut_lip*2]);
}
if (t != 0 && t != 5)
fillet_cutter(2,"indigo")
difference() {
@ -689,8 +863,7 @@ module block_cutter(x,y,w,h,t,s,tab_width=d_tabw,tab_height=d_tabh) {
transform_main(2*ylen)
profile_cutter_tab(height-h_bot, v_len_lip, v_ang_lip);
}
}
}
}
module transform_main(xlen) {
@ -716,6 +889,13 @@ module fillet_cutter(t = 0, c = "goldenrod") {
}
}
/**
* @brief Create the shape to cutout of the block.
* @param h Height of cutout
* @param l Length of cutout
* @param s Scoop weight
* @param yoffset Move cutout to accomodate extra dimensions
*/
module profile_cutter(h, l, s) {
scoop = max(s*$dh/2-r_f2,0);
translate([r_f2,r_f2])
@ -738,7 +918,9 @@ module profile_cutter(h, l, s) {
circle(scoop);
mirror([0,1]) square(2*scoop);
}
} else mirror([1,0]) square(0.1);
} else {
mirror([1,0]) square(0.1);
}
translate([l-scoop-2*r_f2,-1])
square([-(l-scoop-2*r_f2),2*h]);

2
src/core/standard.scad
View file

@ -38,7 +38,7 @@ d_hole_from_side=8;
// Based on https://gridfinity.xyz/specification/
HOLE_DISTANCE_FROM_BOTTOM_EDGE = 4.8;
// Meassured diameter in Fusion360.
// Measured diameter in Fusion360.
// Smaller than the magnet to keep it squeezed.
REFINED_HOLE_RADIUS = 5.86 / 2;
REFINED_HOLE_HEIGHT = MAGNET_HEIGHT - 0.1;

9
src/helpers/generic-helpers.scad
View file

@ -74,9 +74,12 @@ module pattern_linear(x = 1, y = 1, sx = 0, sy = 0) {
yy = sy <= 0 ? sx : sy;
translate([-(x-1)*sx/2,-(y-1)*yy/2,0])
for (i = [1:ceil(x)])
for (j = [1:ceil(y)])
translate([(i-1)*sx,(j-1)*yy,0])
children();
for (j = [1:ceil(y)]) {
$is_odd_x = (i%2) == 1;
$is_odd_y = (j%2) == 1;
translate([(i-1)*sx,(j-1)*yy,0])
children();
}
}
module pattern_circular(n=2) {