diff options
Diffstat (limited to 'model/main.py')
| -rw-r--r-- | model/main.py | 180 |
1 files changed, 122 insertions, 58 deletions
diff --git a/model/main.py b/model/main.py index a172a27..ca1e437 100644 --- a/model/main.py +++ b/model/main.py @@ -1,6 +1,11 @@ from types import SimpleNamespace -from cadquery import ParallelDirSelector, Workplane, Solid +from cadquery import Workplane +if "show_object" not in globals(): + show_object = lambda v: () + +nothing = 0.0001 +origin = (0, 0, 0) XY = Workplane("XY") center_xy = (True, True, False) @@ -33,25 +38,108 @@ def V3(x, y, z): def V21(v): return V3(2 * v, 2 * v, v) +def box(*args): + return XY.box(*args, centered=center_xy) + +def cylinder(r, h): + return XY.circle(r).extrude(h) + +def build_usbc(width, height, depth, tol): + def shape(width, height, depth): + radius = (height + 2 * tol) / 2 + offset = width / 2 - radius + part = box(width - radius * 2, height, depth) + part = part.union(cylinder(radius, depth).translate((-offset, 0, 0))) + part = part.union(cylinder(radius, depth).translate((offset, 0, 0))) + return part + def gen(tol): + dims = (width + 2 * tol, height + 2 * tol, depth + 2 * tol) + part = shape(*dims).translate((0, 0, -tol)) + if tol != 0: + part = part.union(shape(*dims[:2], 20).translate((0, 0, -20))) + return part + part = gen(0).translate((0, -height / 2, 0)).rotate(origin, (1, 0, 0), -90) + bounds = gen(tol).translate((0, -height / 2, 0)).rotate(origin, (1, 0, 0), -90) + return Ext(part, bounds) + def build_bolt(bolt, shaft, tol): height = shaft + bolt.head_height - part = XY.circle(bolt.head_radius).extrude(bolt.head_height) - part = part.union(XY.circle(bolt.radius).extrude(height)) - - bounds = XY.circle(bolt.head_radius + 2 * tol).extrude(bolt.head_height + 2 * tol).translate((0, 0, -tol)) - bounds = bounds.union(XY.circle(bolt.radius - 0.1 + tol).extrude(height + 10 + 2 * tol).translate((0, 0, - 10 -tol))) + def gen(tol): + part = cylinder(bolt.head_radius + tol, bolt.head_height + 2 * tol)\ + .translate((0, 0, height + 2 * tol - bolt.head_height - 2 * tol)) + if tol != 0: + part = part.union(cylinder(bolt.cut_radius + tol, height + 2 * tol)) + part = part.translate((0, 0, -tol)) + else: + part = part.union(cylinder(bolt.radius, height)) + return part - transform = lambda p, h: p.rotate((0, 0, 0), (1, 0, 0), 180).translate((0, 0, h)) - return Ext(transform(part, height), transform(bounds, height + tol)) + return Ext(gen(0), gen(tol)) def build_rod(rod, tol): part = XY.circle(rod.outer).circle(rod.inner).extrude(rod.len) - bounds = XY.circle(rod.outer + tol).extrude(rod.len + 2 * tol).translate((0, 0, -tol)) + bounds = cylinder(rod.outer + tol, rod.len + 2 * tol).translate((0, 0, -tol)) return Ext(part, bounds) +def build_base(base, rod, rod_shaft, usbc, bolt, wall, tol, lid): + outer = base + inner = outer - V3(2 * wall.x, 2 * wall.y, wall.z) + V21(tol) + + floor = wall.z - tol + part = box(*base.xyz()) + part = part.cut(box(*inner.xyz()).translate((0, 0, floor))) + + tower_radius = bolt.radius + wall.x + 1 + tower_height = inner.z + for y in range(-1, 2, 2): + for x in range(-1, 2, 2): + pos = V3(x * lid.hole_spacing.x / 2, y * lid.hole_spacing.y / 2, floor) + offset_x = (inner.x - lid.hole_spacing.x) / 2 + offset_y = (inner.y - lid.hole_spacing.y) / 2 + part = part.union(box(offset_x, offset_y + tower_radius, tower_height) \ + .translate((pos + V3(offset_x*x/2, y*(offset_y-(offset_y+tower_radius)/2), 0)).xyz())) + part = part.union(box(offset_x + tower_radius, offset_y, tower_height) \ + .translate((pos + V3(x*(offset_x-(offset_x+tower_radius)/2), offset_y*y/2, 0)).xyz())) + part = part.union(cylinder(tower_radius, tower_height).translate(pos.xyz())) + + part = part.union(box(wall.x, inner.y, tower_height).translate((-20, 0, floor))) + part = part.union(box(wall.x, inner.y, tower_height).translate((20, 0, floor))) + + # rod cut-out + rod_pos = (rod_shaft.pos + V3(0, 0, floor)).xyz() + base_rod_outer = rod.outer + 6 + part = part.union(cylinder(base_rod_outer, tower_height).translate(rod_pos)) + fill_y = inner.y / 2 - rod_shaft.pos.y + part = part.union(box(40, fill_y, tower_height).translate(rod_pos)\ + .translate((0, -rod_shaft.pos.y+inner.y/2-fill_y/2, 0))) + part = part.cut(cylinder(rod.outer + tol, tower_height).translate(rod_pos)) + part = part.union(box(40, fill_y, 3).translate(rod_pos)\ + .translate((0, -rod_shaft.pos.y+inner.y/2-fill_y/2, 0))) + part = part.cut(box(20, 25, 8).translate(rod_pos).translate((0, -rod.outer - wall.x/2))) + + part = part.cut(build_lid(**lid.__dict__).bounds.translate((0, 0, base.z - lid.base.z))) + + board_hole = V(outer = 3, inner = 2.9 / 2 + tol, height = 2) + board_space = V3(40 - wall.x, 60, 0) + print("Board Space", board_space) + board_space_inner = board_space - V3(2 * board_hole.outer, 2 * board_hole.outer, 0) + board_center = V3(0, -inner.y / 2 + board_space.y / 2, floor) + for y in (-1, 1): + for x in (-1, 1): + pos = board_center + V3(x * board_space_inner.x / 2, y * board_space_inner.y / 2, 0) + part = part.union(cylinder(board_hole.outer, board_hole.height).translate(pos.xyz())) + pos2 = pos + V3(x * board_hole.outer / 2, y * board_hole.outer / 2, 0) + part = part.union(box(board_hole.outer, board_hole.outer, board_hole.height-nothing).translate(pos2.xyz())) + part = part.cut(cylinder(board_hole.inner, board_hole.height).translate(pos.xyz())) + + part_usbc = build_usbc(**usbc.__dict__, tol=tol) + part = part.cut(part_usbc.bounds.translate((board_center + V3(0, -board_space.y / 2 - 1.5, 4)).xyz())) + + return part + def build_lid(base, rod, rod_shaft, wall, bolt, bolt_depth, tol, hole_spacing): outer = base inner = base - V21(wall + tol) @@ -62,8 +150,8 @@ def build_lid(base, rod, rod_shaft, wall, bolt, bolt_depth, tol, hole_spacing): def gen(tol): outer_padded = outer + V3(tol, tol, tol) * 2 inner_padded = inner - V3(tol, tol, tol) * 2 - part = XY.box(*outer_padded.xyz(), centered=center_xy).translate((0, 0, -tol)) - part = part.cut(XY.box(*inner_padded.xyz(), centered=center_xy).translate((0, 0, -tol))) + part = box(*outer_padded.xyz()).translate((0, 0, -tol)) + part = part.cut(box(*inner_padded.xyz()).translate((0, 0, -tol))) for y in range(-1, 2, 2): for x in range(-1, 2, 2): pos = V3(x * hole_spacing.x / 2, y * hole_spacing.y / 2, outer.z) @@ -71,11 +159,11 @@ def build_lid(base, rod, rod_shaft, wall, bolt, bolt_depth, tol, hole_spacing): head_height = bolt.head_height + wall + tol offset_x = (outer.x - 2 * wall - hole_spacing.x) / 2 + tol offset_y = (outer.y - 2 * wall - hole_spacing.y) / 2 + tol - part = part.union(XY.circle(head_radius).extrude(head_height) \ + part = part.union(cylinder(head_radius, head_height) \ .translate((pos + V3(0, 0, -head_height)).xyz())) - part = part.union(XY.box(offset_x, offset_y + head_radius, head_height, centered=center_xy) \ + part = part.union(box(offset_x, offset_y + head_radius, head_height) \ .translate((pos + V3(offset_x*x/2, y*(offset_y-(offset_y+head_radius)/2), -head_height)).xyz())) - part = part.union(XY.box(offset_x + head_radius, offset_y, head_height, centered=center_xy) \ + part = part.union(box(offset_x + head_radius, offset_y, head_height) \ .translate((pos + V3(x*(offset_x-(offset_x+head_radius)/2), offset_y*y/2, -head_height)).xyz())) if tol != 0: part = part.union(part_bolt.bounds.translate((pos + V3(0, 0, -bolt_depth - bolt.head_height)).xyz())) @@ -84,50 +172,19 @@ def build_lid(base, rod, rod_shaft, wall, bolt, bolt_depth, tol, hole_spacing): return part part = gen(0) - part_rod_wall = XY.circle(rod_wall.outer).extrude(rod_wall.z) - part = part.union(part_rod_wall.translate((rod_shaft.pos + V3(0, 0, inner.z)).xyz())) + part_rod_wall = cylinder(rod_wall.outer + 5 + tol, 10) + part = part.cut(part_rod_wall.translate((rod_shaft.pos + V3(0, 0, outer.z - 1)).xyz())) part = part.cut(build_rod(rod, tol).bounds.translate(rod_shaft.pos.xyz())) part_bounds = gen(tol) return Ext(part, part_bounds) -def build_base(base, rod, rod_shaft, insert, bolt, wall, tol, lid): - outer = base - inner = outer - V3(2 * wall.x, 2 * wall.y, wall.z) + V21(tol) - - floor = wall.z - tol - part = XY.box(*base.xyz(), centered=center_xy) - part = part.cut(XY.box(*inner.xyz(), centered=center_xy).translate((0, 0, floor))) - - tower_radius = bolt.radius + wall.x + 1 - tower_height = inner.z - for y in range(-1, 2, 2): - for x in range(-1, 2, 2): - pos = V3(x * lid.hole_spacing.x / 2, y * lid.hole_spacing.y / 2, floor) - offset_x = (inner.x - lid.hole_spacing.x) / 2 - offset_y = (inner.y - lid.hole_spacing.y) / 2 - part = part.union(XY.box(offset_x, offset_y + tower_radius, tower_height, centered=center_xy) \ - .translate((pos + V3(offset_x*x/2, y*(offset_y-(offset_y+tower_radius)/2), 0)).xyz())) - part = part.union(XY.box(offset_x + tower_radius, offset_y, tower_height, centered=center_xy) \ - .translate((pos + V3(x*(offset_x-(offset_x+tower_radius)/2), offset_y*y/2, 0)).xyz())) - part = part.union(XY.circle(tower_radius).extrude(tower_height).translate(pos.xyz())) - - part = part.union(XY.box(wall.x, inner.y, tower_height, centered=center_xy).translate((-20, 0, floor))) - part = part.union(XY.box(wall.x, inner.y, tower_height, centered=center_xy).translate((20, 0, floor))) - - rod_pos = (rod_shaft.pos + V3(0, 0, floor)).xyz() - part = part.union(XY.circle(rod.outer + wall.x + 2).extrude(tower_height).translate(rod_pos)) - fill_y = inner.y / 2 - rod_shaft.pos.y - part = part.union(XY.box(40, fill_y, tower_height, centered=center_xy).translate(rod_pos)\ - .translate((0, -rod_shaft.pos.y+inner.y/2-fill_y/2, 0))) - part = part.cut(XY.circle(rod.outer + tol).extrude(tower_height).translate(rod_pos)) - part = part.union(XY.box(40, fill_y, 3, centered=center_xy).translate(rod_pos)\ - .translate((0, -rod_shaft.pos.y+inner.y/2-fill_y/2, 0))) - part = part.cut(XY.box(20, 25, 8, centered=center_xy).translate(rod_pos).translate((0, -rod.outer - wall.x/2))) - - part = part.cut(build_lid(**lid.__dict__).bounds.translate((0, 0, base.z - lid.base.z))) - +def build_sheath(rod, rod_shaft, tol, wall): + rod_wall = V(outer = rod.outer + tol + wall, inner = rod.outer + tol, z = rod_shaft.height) + part = cylinder(rod_wall.outer + 5, 2) + part = part.union(cylinder(rod_wall.outer, rod_wall.z)) + part = part.cut(build_rod(rod, tol).bounds) return part def main(): @@ -135,28 +192,35 @@ def main(): base = V3(80, 80, 15) rod_shaft = V(pos = V3(0, 0, 0), height = 20) + base = V3(120, 120, 30) + rod_shaft = V(pos = V3(0, 30, 0), height = 35) tol = 0.05 - rod = V(outer = 25 / 2, inner = 21 / 2, len = 500) - #base = V3(120, 120, 30) - #rod_shaft = V(pos = V3(0, 30, 0), height = 35) + rod = V(outer = 25.3 / 2, inner = 21 / 2, len = 500) thin_wall = 2.4 thick_wall = 4 - bolt = V(radius = 3 / 2, head_radius = 5.4 / 2, head_height = 3) - bolt_depth = 10 + 1 + bolt = V(radius = 3 / 2, head_radius = 5.4 / 2, head_height = 3, cut_radius = 2.9 / 2) lid = V3(base.x, base.y, 10) lid_hole_spacing = V3(lid.x - 15, lid.y - 15, 0) insert = V(radius=5 / 2, height=5) base_wall = V3(thick_wall, thick_wall, thin_wall) + bolt_depth = base.z - bolt.head_height # - base_wall.z # let bolt go through + + usbc = V(width = 9, height = 3, depth = 7.3) + #show_object(build_rod(rod).translate((0, 0, 10))) + sheath_ctx = V(rod=rod, rod_shaft=rod_shaft, tol=tol, wall=thin_wall) + show_object(build_sheath(**sheath_ctx.__dict__).translate((-100, 0, 0))) + lid_ctx = V(base=lid, rod=rod, rod_shaft=rod_shaft, wall=thin_wall, bolt=bolt, bolt_depth=bolt_depth, tol=tol, hole_spacing=lid_hole_spacing) show_object(build_lid(**lid_ctx.__dict__).translate((150, 0, 0))) - base_ctx = V(base=base, rod=rod, rod_shaft=rod_shaft, bolt=bolt, wall=base_wall, tol=tol, insert=insert) + base_ctx = V(base=base, rod=rod, rod_shaft=rod_shaft, bolt=bolt, + wall=base_wall, tol=tol, usbc=usbc) show_object(build_base(**base_ctx.__dict__, lid=lid_ctx)) main() |