diff options
| -rw-r--r-- | gridfinity.scad | 24 |
1 files changed, 14 insertions, 10 deletions
diff --git a/gridfinity.scad b/gridfinity.scad index c3e8e0d..2ebd8a1 100644 --- a/gridfinity.scad +++ b/gridfinity.scad @@ -7,6 +7,8 @@ width = 42; width_tolerance = 41.5; rounding = 3.75; +minimal_thickness = 1.5; + module rounding(r,angle) { rotate(angle,[0,0,1]) translate([-r + 0.01, -r + 0.01]) @@ -28,9 +30,9 @@ module rounded_square(lx, ly, r) { } } -module magnet_hole(h = 0) { +module magnet_hole(screw = 0) { linear_extrude(2.5) circle(3.25); - translate([0,0,2.5]) linear_extrude(h) circle(1.5); + translate([0,0,2.5]) linear_extrude(screw) circle(1.5); } module base_solid() { @@ -130,6 +132,10 @@ module bottom_cutout(units_x, units_y) { } module gridfinity(units_x, units_y, units_z, lip = true, magnets = false) { + units_x = floor(abs(units_x)); + units_y = floor(abs(units_y)); + units_z = floor(abs(units_z)); + // Bases for (ux = [0:units_x -1]) { for (uy = [0:units_y -1]) { @@ -138,15 +144,13 @@ module gridfinity(units_x, units_y, units_z, lip = true, magnets = false) { } // Solid Block - if (units_z > 0) { - difference() { - 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); - } - bottom_cutout(units_x, units_y); + difference() { + translate([coord_centered(units_x), coord_centered(units_y), 4.75]) { + extr = max(units_z * height - 4.75, minimal_thickness); + linear_extrude(extr) + rounded_square(units_x * width - 0.5, units_y * width - 0.5, rounding); } + bottom_cutout(units_x, units_y); } // Stacking Lip |