Coat rack¶

from woodwright.examples import projects

design = projects.coat_rack(length=750)

board  600 x 100 x 20 mm  oak
       - chamfer 3 mm on top_face_front_edge_arris
       - chamfer 3 mm on top_face_back_edge_arris
       - 2 x screw hole ø5, counterbored ø10, 8 deep, in top_face, 120 from left_end and right_end; centered, for a 4.5 x 50 screw into the wall
       - 5 x hole ø12, 17 deep, in top_face, 60, 180, 420 and 540 from left_end, centered; centered
peg    ø22 x 95 mm  oak, 5 pieces: peg_1, peg_2, peg_3, peg_4, peg_5
       - chamfer 2 mm around right_end
       - round tenon ø12, 15 long, end chamfered 1 mm, on left_end

def coat_rack(
    length: float = 600,
    width: float = 100,
    pegs: int = 5,
    peg_length: float = 80,
    tenon: float = 12,
    chamfer: float = 3,
    stock: Stock = OAK,
) -> Assembly:
    """A coat rack: a board on the wall with `pegs` round pegs, evenly spaced.

    The pegs (`peg_length` long from the board) have round tenons `tenon`
    wide, glued into blind holes in the board's front, their ends
    chamfered. The board's front arrises along its length are chamfered;
    it is screwed to the wall through two counterbored holes between the
    outer pegs, to be closed by plugs.
    """
    asm = Assembly("coat_rack", root_location=orient(top_face=FRONT, back_edge=UP))
    board = asm.add(Board("board", stock, length=length, width=width))
    for edge in (board.front_edge, board.back_edge):
        board.cut(Chamfer(board.arris(board.top_face, edge), size=chamfer))
    pitch = length / pegs
    for i in range(pegs):
        peg = asm.add(Rod(f"peg_{i + 1}", PEG_STOCK, length=peg_length))
        peg.cut(EndChamfer(peg.right_end, size=2))
        asm.join(
            RoundMortiseTenon(
                tenon=peg.left_end,
                mortise=board.top_face,
                diameter=tenon,
                length=15,
                chamfer=1,
                position=offset((i + 0.5) * pitch - PEG_STOCK.diameter / 2, ref=board.left_end),
            )
        )
    for end in (board.left_end, board.right_end):
        board.cut(
            Hole(
                board.top_face,
                5,
                at={end: pitch},
                counterbore=10,
                counterbore_depth=8,
                kind="screw hole",
                note="for a 4.5 x 50 screw into the wall",
            )
        )
    return asm