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Enable efloor+fingerslide options [3] #41

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1b1904b
cleanup floor difference overhangs
danielsan80 Nov 7, 2024
18a6099
fix half_pitch+efloor
danielsan80 Nov 7, 2024
4b1efd7
enable fingerslide+efloor
danielsan80 Nov 7, 2024
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187 changes: 106 additions & 81 deletions gridfinity_cup_modules.scad
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Original file line number Diff line number Diff line change
Expand Up @@ -75,9 +75,9 @@ module basic_cup(
difference() {
grid_block(num_x, num_y, num_z, magnet_diameter, screw_depth, hole_overhang_remedy=hole_overhang_remedy, half_pitch=half_pitch, box_corner_attachments_only=box_corner_attachments_only);
color("red") partitioned_cavity(num_x, num_y, num_z, withLabel=withLabel,
labelWidth=labelWidth, fingerslide=fingerslide, magnet_diameter=magnet_diameter,
labelWidth=labelWidth, fingerslide=fingerslide, magnet_diameter=magnet_diameter,
screw_depth=screw_depth, floor_thickness=floor_thickness, wall_thickness=wall_thickness,
efficient_floor=efficient_floor, separator_positions=separator_positions, lip_style=lip_style);
efficient_floor=efficient_floor, separator_positions=separator_positions, lip_style=lip_style, half_pitch=half_pitch);
}
}

Expand Down Expand Up @@ -114,7 +114,8 @@ module partitioned_cavity(num_x, num_y, num_z, withLabel=default_withLabel,
labelWidth=default_labelWidth, fingerslide=default_fingerslide,
magnet_diameter=default_magnet_diameter, screw_depth=default_screw_depth,
floor_thickness=default_floor_thickness, wall_thickness=default_wall_thickness,
efficient_floor=default_efficient_floor, separator_positions=[], lip_style=default_lip_style) {
efficient_floor=default_efficient_floor, separator_positions=[], lip_style=default_lip_style,
half_pitch=default_half_pitch) {
// cavity with removed segments so that we leave dividing walls behind
gp = gridfinity_pitch;
outer_wall_th = 1.8; // cavity is this far away from the 42mm 'ideal' block
Expand All @@ -133,7 +134,7 @@ module partitioned_cavity(num_x, num_y, num_z, withLabel=default_withLabel,
difference() {
basic_cavity(num_x, num_y, num_z, fingerslide=fingerslide, magnet_diameter=magnet_diameter,
screw_depth=screw_depth, floor_thickness=floor_thickness, wall_thickness=wall_thickness,
efficient_floor=efficient_floor, lip_style=lip_style);
efficient_floor=efficient_floor, lip_style=lip_style, half_pitch=half_pitch);

if (len(separator_positions) > 0) {
for (i=[0:len(separator_positions)-1]) {
Expand All @@ -156,8 +157,8 @@ module partitioned_cavity(num_x, num_y, num_z, withLabel=default_withLabel,
chamberStart = i == 0 ? 0 : separator_positions[i-1];
chamberWidth = chamberWidths[i];
label_num_x = (labelWidth == 0 || labelWidth > chamberWidth) ? chamberWidth : labelWidth;
label_pos_x = (withLabel == "center" || withLabel == "centerchamber" )? (chamberWidth - label_num_x) / 2
: (withLabel == "right" || withLabel == "rightchamber" )? chamberWidth - label_num_x
label_pos_x = (withLabel == "center" || withLabel == "centerchamber" )? (chamberWidth - label_num_x) / 2
: (withLabel == "right" || withLabel == "rightchamber" )? chamberWidth - label_num_x
: 0 ;

hull() for (i=[0,1, 2])
Expand All @@ -177,7 +178,8 @@ module partitioned_cavity(num_x, num_y, num_z, withLabel=default_withLabel,
module basic_cavity(num_x, num_y, num_z, fingerslide=default_fingerslide,
magnet_diameter=default_magnet_diameter, screw_depth=default_screw_depth,
floor_thickness=default_floor_thickness, wall_thickness=default_wall_thickness,
efficient_floor=default_efficient_floor, lip_style=default_lip_style) {
efficient_floor=default_efficient_floor, lip_style=default_lip_style,
half_pitch=default_half_pitch) {
eps = 0.1;
// I couldn't think of a good name for this ('q') but effectively it's the
// size of the overhang that produces a wall thickness that's less than the lip
Expand All @@ -191,7 +193,7 @@ module basic_cavity(num_x, num_y, num_z, fingerslide=default_fingerslide,
facets = 13;
mag_ht = magnet_diameter > 0 ? 2.4: 0;
m3_ht = screw_depth;
efloor = efficient_floor && magnet_diameter == 0 && screw_depth == 0 && !fingerslide;
efloor = efficient_floor && magnet_diameter == 0 && screw_depth == 0;
seventeen = gridfinity_pitch/2-4;

floorht = max(mag_ht, m3_ht, part_ht) + floor_thickness;
Expand All @@ -203,92 +205,115 @@ module basic_cavity(num_x, num_y, num_z, fingerslide=default_fingerslide,

difference() {
union() {
// cut out inside edge of standard lip
hull() cornercopy(seventeen, num_x, num_y) {
tz(zpoint-eps) cylinder(d=2.3, h=inner_lip_ht+2*eps, $fn=24); // lip
difference() {
union() {
// cut out inside edge of standard lip
hull() cornercopy(seventeen, num_x, num_y) {
tz(zpoint-eps) cylinder(d=2.3, h=inner_lip_ht+2*eps, $fn=24); // lip
}

hull() cornercopy(seventeen, num_x, num_y) {
// create bevels below the lip
if (lip_style3 == "reduced") {
tz(zpoint+1.8) cylinder(d=3.7, h=0.1, $fn=32); // transition from lip (where top of lip would be) ...
// radius increases by (2.3+2*q-3.7)/2 = q-1.4/2 = q-0.7
tz(zpoint-(q-0.7)+1.9-q2) cylinder(d=2.3+2*q, h=q2, $fn=32); // ... to top of thin wall ...
}
else if (lip_style3 == "none") {
tz(zpoint) cylinder(d=2.3+2*q, h=6, $fn=32); // remove entire lip
}
else {// normal
tz(zpoint-0.1) cylinder(d=2.3, h=0.1, $fn=24); // transition from lip ...
tz(zpoint-q-q2) cylinder(d=2.3+2*q, h=q2, $fn=32); // ... to top of thin wall ...
}
// create rounded bottom of bowl (8.5 is high enough to not expose gaps)
tz(2.3/2+q+floorht) sphere(d=2.3+2*q, $fn=32); // .. to bottom of thin wall and floor
tz(2.3/2+q+floorht) mirror([0, 0, 1]) cylinder(d1=2.3+2*q, d2=0, h=1.15+q, $fn=32);
}
}
}

hull() cornercopy(seventeen, num_x, num_y) {
// create bevels below the lip
if (lip_style3 == "reduced") {
tz(zpoint+1.8) cylinder(d=3.7, h=0.1, $fn=32); // transition from lip (where top of lip would be) ...
// radius increases by (2.3+2*q-3.7)/2 = q-1.4/2 = q-0.7
tz(zpoint-(q-0.7)+1.9-q2) cylinder(d=2.3+2*q, h=q2, $fn=32); // ... to top of thin wall ...
}
else if (lip_style3 == "none") {
tz(zpoint) cylinder(d=2.3+2*q, h=6, $fn=32); // remove entire lip

// cut away side lips if num_x is less than 1
if (num_x < 1) {
hull() for (x=[-gridfinity_pitch/2+1.5+0.25+wall_thickness, -gridfinity_pitch/2+num_x*gridfinity_pitch-1.5-0.25-wall_thickness])
for (y=[-10, (num_y-0.5)*gridfinity_pitch-seventeen])
translate([x, y, (floorht+7*num_z)/2])
cylinder(d=3, h=7*num_z, $fn=24);
}

if (efloor) {
if (num_x < 1) {
gridcopy(1, num_y) {
tz(floor_thickness) intersection() {
hull() cornercopy(seventeen-0.5) cylinder(r=1, h=5, $fn=32);
translate([gridfinity_pitch*(-1+num_x), 0, 0]) hull() cornercopy(seventeen-0.5) cylinder(r=1, h=5, $fn=32);
}

// tapered top portion
intersection() {
hull() {
tz(3) cornercopy(seventeen-0.5) cylinder(r=1, h=1, $fn=32);
tz(5) cornercopy(seventeen+2.5-1.15-q) cylinder(r=1.15+q, h=4, $fn=32);
}
translate([gridfinity_pitch*(-1+num_x), 0, 0]) hull() {
tz(3) cornercopy(seventeen-0.5) cylinder(r=1, h=1, $fn=32);
tz(5) cornercopy(seventeen+2.5-1.15-q) cylinder(r=1.15+q, h=4, $fn=32);
}
}
}
}
else { // normal
tz(zpoint-0.1) cylinder(d=2.3, h=0.1, $fn=24); // transition from lip ...
tz(zpoint-q-q2) cylinder(d=2.3+2*q, h=q2, $fn=32); // ... to top of thin wall ...
else {
if (half_pitch) {
// establishes floor
gridcopy(num_x, num_y, half_pitch=half_pitch) hull() tz(floor_thickness) cornercopy(seventeen-0.5-gridfinity_pitch/4) cylinder(r=1, h=5, $fn=32);

// tapered top portion
gridcopy(num_x, num_y, half_pitch=half_pitch) hull() {
tz(3) cornercopy(seventeen-0.5-gridfinity_pitch/4) cylinder(r=1, h=1, $fn=32);
tz(5-(+2.5-1.15-q)) cornercopy(seventeen-gridfinity_pitch/4) cylinder(r=1.15+q, h=4, $fn=32);
}
} else {
// establishes floor
gridcopy(num_x, num_y) hull() tz(floor_thickness) cornercopy(seventeen-0.5) cylinder(r = 1, h = 5, $fn =
32);

// tapered top portion
gridcopy(num_x, num_y) hull() {
tz(3) cornercopy(seventeen-0.5) cylinder(r=1, h=1, $fn=32);
tz(5-(+2.5-1.15-q)) cornercopy(seventeen) cylinder(r=1.15+q, h=4, $fn=32);
}
}
// cleanup floor difference overhangs
hull()
cornercopy(seventeen, num_x, num_y) {
tz(floorht) cylinder(d=2.3+2*q, h=2.3+2*q, $fn=24);
}
}
// create rounded bottom of bowl (8.5 is high enough to not expose gaps)
tz(2.3/2+q+floorht) sphere(d=2.3+2*q, $fn=32); // .. to bottom of thin wall and floor
tz(2.3/2+q+floorht) mirror([0, 0, 1]) cylinder(d1=2.3+2*q, d2=0, h=1.15+q, $fn=32);
}
}

pivot_z_offset = efloor? -floorht+0.7 : 0;
// cut away from the negative to leave behind wall to make it easier to remove piece
pivot_z = 13.6-0.45+floorht-5+seventeen-17;
pivot_z = 13.6-0.45+floorht-5+seventeen-17+pivot_z_offset;
pivot_y = -10;

// rounded inside bottom
if(fingerslide){
for (ai=[0:facets-1])
// normal slide position is -seventeen-1.15 which is the edge of the inner lip
// reduced slide position is -seventeen-1.85 which is the edge of the upper lip
// no lip means we need -gridfinity_pitch/2+1.5+0.25+wall_thickness ?
translate([0, (
lip_style3 == "reduced" ? -0.7
: (lip_style3=="none" ? seventeen+1.15-gridfinity_pitch/2+0.25+wall_thickness
: 0
) ), 0])
if (fingerslide) {
for (ai = [0:facets-1])
// normal slide position is -seventeen-1.15 which is the edge of the inner lip
// reduced slide position is -seventeen-1.85 which is the edge of the upper lip
// no lip means we need -gridfinity_pitch/2+1.5+0.25+wall_thickness ?
translate([0, (
lip_style3 == "reduced" ? -0.7
: (lip_style3 == "none" ? seventeen+1.15-gridfinity_pitch/2+0.25+wall_thickness
: 0
)), 0])
translate([0, pivot_y, pivot_z])
rotate([90*ai/(facets-1), 0, 0])
rotate([90 * ai/(facets-1), 0, 0])
translate([0, -pivot_y, -pivot_z])
translate([-gridfinity_pitch/2, -10-seventeen-1.15, 0])
cube([gridfinity_pitch*num_x, 10, gridfinity_zpitch*num_z+5]);
}
}

// cut away side lips if num_x is less than 1
if (num_x < 1) {
hull() for (x=[-gridfinity_pitch/2+1.5+0.25+wall_thickness, -gridfinity_pitch/2+num_x*gridfinity_pitch-1.5-0.25-wall_thickness])
for (y=[-10, (num_y-0.5)*gridfinity_pitch-seventeen])
translate([x, y, (floorht+7*num_z)/2])
cylinder(d=3, h=7*num_z, $fn=24);
}

if (efloor) {
if (num_x < 1) {
gridcopy(1, num_y) {
tz(floor_thickness) intersection() {
hull() cornercopy(seventeen-0.5) cylinder(r=1, h=5, $fn=32);
translate([gridfinity_pitch*(-1+num_x), 0, 0]) hull() cornercopy(seventeen-0.5) cylinder(r=1, h=5, $fn=32);
}

// tapered top portion
intersection() {
hull() {
tz(3) cornercopy(seventeen-0.5) cylinder(r=1, h=1, $fn=32);
tz(5) cornercopy(seventeen+2.5-1.15-q) cylinder(r=1.15+q, h=4, $fn=32);
}
translate([gridfinity_pitch*(-1+num_x), 0, 0]) hull() {
tz(3) cornercopy(seventeen-0.5) cylinder(r=1, h=1, $fn=32);
tz(5) cornercopy(seventeen+2.5-1.15-q) cylinder(r=1.15+q, h=4, $fn=32);
}
}
}
}
else {
// establishes floor
gridcopy(num_x, num_y) hull() tz(floor_thickness) cornercopy(seventeen-0.5) cylinder(r=1, h=5, $fn=32);

// tapered top portion
gridcopy(num_x, num_y) hull() {
tz(3) cornercopy(seventeen-0.5) cylinder(r=1, h=1, $fn=32);
tz(5-(+2.5-1.15-q)) cornercopy(seventeen) cylinder(r=1.15+q, h=4, $fn=32);
}
translate([-gridfinity_pitch/2, -10-seventeen-1.15, 0])
cube([gridfinity_pitch * num_x, 10, gridfinity_zpitch * num_z+5]);
}
}
}
Expand Down
10 changes: 7 additions & 3 deletions gridfinity_modules.scad
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Original file line number Diff line number Diff line change
Expand Up @@ -195,14 +195,18 @@ module gridcopycorners(num_x, num_y, r, onlyBoxCorners = false) {

// similar to quadtranslate but expands to extremities of a block
module cornercopy(r, num_x=1, num_y=1) {
for (xx=[-r, gridfinity_pitch*(num_x-1)+r]) for (yy=[-r, gridfinity_pitch*(num_y-1)+r])
for (xx=[-r, gridfinity_pitch*(num_x-1)+r]) for (yy=[-r, gridfinity_pitch*(num_y-1)+r])
translate([xx, yy, 0]) children();
}


// make repeated copies of something(s) at the gridfinity spacing of 42mm
module gridcopy(num_x, num_y) {
for (xi=[1:num_x]) for (yi=[1:num_y]) translate([gridfinity_pitch*(xi-1), gridfinity_pitch*(yi-1), 0]) children();
module gridcopy(num_x, num_y, half_pitch=default_half_pitch) {
if (half_pitch) {
for (xi=[1:num_x*2]) for (yi=[1:num_y*2]) translate([gridfinity_pitch/2*(xi-1.5), gridfinity_pitch/2*(yi-1.5), 0]) children();
} else {
for (xi=[1:num_x]) for (yi=[1:num_y]) translate([gridfinity_pitch*(xi-1), gridfinity_pitch*(yi-1), 0]) children();
}
}