import cadquery as cq from math import floor def extrude_shape(*, model, face, w, h, x_offset, y_offset, element, height): return ( model.faces(face) .workplane(centerOption="CenterOfBoundBox") .center(-w / 2 + x_offset + element["x"], -h / 2 + y_offset + element["y"]) .placeSketch(element["shape"]) .extrude(height) ) def punch_hole(*, model, face, w, h, x_offset, y_offset, hole, depth): return ( model.faces(face) .workplane(centerOption="CenterOfBoundBox") .center(-w / 2 + x_offset + hole["x"], -h / 2 + y_offset + hole["y"]) .placeSketch(hole["shape"]) .cutBlind(-depth) ) def extrude_shape2(*, model, face, w, h, x_offset, y_offset, hole, depth): return ( model.faces(face) .workplane(centerOption="CenterOfBoundBox") .center(-w / 2 + x_offset + hole["x"], -h / 2 + y_offset + hole["y"]) .placeSketch(hole["shape"]) .extrude(-depth) ) def hex_vents(*, size, width, height, density=0.85): # size is radius of the hexagon # Information about how this works: # https://www.redblobgames.com/grids/hexagons/ x_step = size * (3**0.5) y_step = size * 3 / 2 x_count = floor(width / x_step) - 1 if height > 4 * size: y_count = floor((height - 2 * size) / (1.5 * size)) else: y_count = 1 x_size = (x_count + 0.5) * x_step # Assumes at least 2 rows y_size = 2 * size + 1.5 * size * (y_count - 1) x_offset = (width - x_size) / 2 + 0.5 * x_step y_offset = (height - y_size) / 2 + size vent_positions = [] for x in range(0, x_count): for y in range(0, y_count): vent_positions.append( ( (x + (y % 2) / 2) * x_step + x_offset, y * y_step + y_offset, ) ) vents = [ { "x": 0, "y": 0, "shape": cq.Sketch().push(vent_positions).regularPolygon(size * density, 6), } ] return vents