diff options
| -rw-r--r-- | gridfinity.scad | 22 |
1 files changed, 19 insertions, 3 deletions
diff --git a/gridfinity.scad b/gridfinity.scad index ed9b77e..585abd3 100644 --- a/gridfinity.scad +++ b/gridfinity.scad @@ -88,6 +88,19 @@ module stacking_lip(units_x, units_y) { } } +module cutout_slot(l, rx = 0) { + rotate([rx,-90,0]) linear_extrude(l) polygon([[0,-0.25],[0,0.25],[0.25,0]]); +} + +module bottom_cutout(units_x, units_y) { + if (units_y > 1) for (i = [1:units_y - 1]) { + translate([units_x * width - width/2, i * width - width/2, 4.749]) cutout_slot(width * units_x); + } + if(units_x > 1) for (i = [1:units_x - 1]) { + translate([i * width - width/2, units_y * width - width/2, 4.749]) cutout_slot(width * units_y, rx=90); + } +} + module gridfinity(units_x, units_y, units_z, lip = true, magnets = false) { for (ux = [0:units_x -1]) { for (uy = [0:units_y -1]) { @@ -95,9 +108,12 @@ module gridfinity(units_x, units_y, units_z, lip = true, magnets = false) { } } 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); + 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); } } if (lip && units_z > 0) // Just to safeguard. h=0 is not intended to be used with lip. |