diff options
Diffstat (limited to 'gridfinity.scad')
| -rw-r--r-- | gridfinity.scad | 140 |
1 files changed, 70 insertions, 70 deletions
diff --git a/gridfinity.scad b/gridfinity.scad index bd9924e..ed9b77e 100644 --- a/gridfinity.scad +++ b/gridfinity.scad @@ -8,99 +8,99 @@ width_tolerance = 41.5; rounding = 3.75; module rounding(r,angle) { - rotate(angle,[0,0,1]) - translate([-r + 0.01, -r + 0.01]) - difference() { - square([r,r]); - circle(r); - } + rotate(angle,[0,0,1]) + translate([-r + 0.01, -r + 0.01]) + difference() { + square([r,r]); + circle(r); + } } module rounded_square(lx, ly, r) { - difference() { - square([lx,ly],center=true); - union() { - translate([ lx/2, ly/2]) rounding(r, 0 ); - translate([-lx/2, ly/2]) rounding(r, 90 ); - translate([-lx/2,-ly/2]) rounding(r, 180); - translate([ lx/2,-ly/2]) rounding(r, 270); - } - } + difference() { + square([lx,ly],center=true); + union() { + translate([ lx/2, ly/2]) rounding(r, 0 ); + translate([-lx/2, ly/2]) rounding(r, 90 ); + translate([-lx/2,-ly/2]) rounding(r, 180); + translate([ lx/2,-ly/2]) rounding(r, 270); + } + } } module magnet_hole(h = 0) { - linear_extrude(2.5) circle(3.25); - translate([0,0,2.5]) linear_extrude(h) circle(1.5); + linear_extrude(2.5) circle(3.25); + translate([0,0,2.5]) linear_extrude(h) circle(1.5); } module base_solid() { - hull() { - linear_extrude(0.1)rounded_square(35.6, 35.6, 0.8); - translate([0,0,0.8]) linear_extrude(1.8) rounded_square(37.2, 37.2, 1.6); - } - translate([0,0,2.6]) hull() { - linear_extrude(0.1) rounded_square(37.2, 37.2, 1.6); - translate([0,0,2.15]) linear_extrude(0.1)rounded_square(41.5, 41.5, 3.75); - } + hull() { + linear_extrude(0.1)rounded_square(35.6, 35.6, 0.8); + translate([0,0,0.8]) linear_extrude(1.8) rounded_square(37.2, 37.2, 1.6); + } + translate([0,0,2.6]) hull() { + linear_extrude(0.1) rounded_square(37.2, 37.2, 1.6); + translate([0,0,2.15]) linear_extrude(0.1)rounded_square(41.5, 41.5, 3.75); + } } module base(magnets = false) { - l = 35.6; - o = 4.8; + l = 35.6; + o = 4.8; - difference() { - base_solid(); - if (magnets) union() { - translate([ l/2 - o, l/2 - o, -0.01]) magnet_hole(); - translate([-l/2 + o, l/2 - o, -0.01]) magnet_hole(); - translate([ l/2 - o, -l/2 + o, -0.01]) magnet_hole(); - translate([-l/2 + o, -l/2 + o, -0.01]) magnet_hole(); - } - } + difference() { + base_solid(); + if (magnets) union() { + translate([ l/2 - o, l/2 - o, -0.01]) magnet_hole(); + translate([-l/2 + o, l/2 - o, -0.01]) magnet_hole(); + translate([ l/2 - o, -l/2 + o, -0.01]) magnet_hole(); + translate([-l/2 + o, -l/2 + o, -0.01]) magnet_hole(); + } + } } module stacking_lip_negative(ux, uy) { - x1 = (width * ux) -5.2 -0.5; - y1 = (width * uy) -5.2 -0.5; - x2 = (width * ux) -3.8 -0.5; - y2 = (width * uy) -3.8 -0.5; - x3 = (width * ux) -0.5; - y3 = (width * uy) -0.5; + x1 = (width * ux) -5.2 -0.5; + y1 = (width * uy) -5.2 -0.5; + x2 = (width * ux) -3.8 -0.5; + y2 = (width * uy) -3.8 -0.5; + x3 = (width * ux) -0.5; + y3 = (width * uy) -0.5; - // translate and scale are here to make sure the negative pokes through - // the positive block - translate([0,0,-0.001]) scale([1,1,1.001]) hull() { - linear_extrude(0.01)rounded_square(x1, y1, 0.7); - translate([0,0,0.7]) linear_extrude(1.8) rounded_square(x2, y2, 1.6); - } - translate([0,0,2.5]) hull() { - linear_extrude(0.01) rounded_square(x2, y2, 1.7); - translate([0,0,2.15]) linear_extrude(0.01)rounded_square(x3, y3, 3.75); - } + // translate and scale are here to make sure the negative pokes through + // the positive block + translate([0,0,-0.001]) scale([1,1,1.001]) hull() { + linear_extrude(0.01)rounded_square(x1, y1, 0.7); + translate([0,0,0.7]) linear_extrude(1.8) rounded_square(x2, y2, 1.6); + } + translate([0,0,2.5]) hull() { + linear_extrude(0.01) rounded_square(x2, y2, 1.7); + translate([0,0,2.15]) linear_extrude(0.01)rounded_square(x3, y3, 3.75); + } } function coord_centered(ux) = (ux -1) * width - 0.5 * width * (ux - 1); module stacking_lip(units_x, units_y) { - difference() { - linear_extrude(4.4)rounded_square(units_x * width -0.5, units_y * width -0.5, rounding); - stacking_lip_negative(units_x, units_y); - } + difference() { + linear_extrude(4.4)rounded_square(units_x * width -0.5, units_y * width -0.5, rounding); + stacking_lip_negative(units_x, units_y); + } } module gridfinity(units_x, units_y, units_z, lip = true, magnets = false) { - for (ux = [0:units_x -1]) { - for (uy = [0:units_y -1]) { - translate([ux * width, uy * width,0]) base(magnets = magnets); - } - } - if (units_z > 0) { - translate([coord_centered(units_x), coord_centered(units_y), 4.75]) { - extr = units_z * height - 4.75; - linear_extrude(extr) rounded_square(units_x * width - 0.5, units_y * width - 0.5, rounding); - } - } - if (lip && units_z > 0) // Just to safeguard. h=0 is not intended to be used with lip. - translate([coord_centered(units_x), coord_centered(units_y), units_z * height]) - stacking_lip(units_x, units_y); + for (ux = [0:units_x -1]) { + for (uy = [0:units_y -1]) { + translate([ux * width, uy * width,0]) base(magnets = magnets); + } + } + if (units_z > 0) { + translate([coord_centered(units_x), coord_centered(units_y), 4.75]) { + extr = units_z * height - 4.75; + linear_extrude(extr) rounded_square(units_x * width - 0.5, units_y * width - 0.5, rounding); + } + } + if (lip && units_z > 0) // Just to safeguard. h=0 is not intended to be used with lip. + translate([coord_centered(units_x), coord_centered(units_y), units_z * height]) + stacking_lip(units_x, units_y); } |