| 12345678910111213141516171819202122232425262728293031323334353637383940414243444546474849505152535455565758596061626364656667686970 |
- import cadquery as cq
- from cadquery.occ_impl.exporters import ExportTypes
- from ocp_vscode import show, show_object
- import math
- ###### Parameter #####
- a_thick = 1.7
- a_diam = 2.4
- a_gap_width = 0.8
- overhang_a_width = a_gap_width /2 * 0.85
- overhang_a_height = 3
- b_thick = 4.2
- b_diam = 3.1
- b_gap_width = a_gap_width
- overhang_b_width = b_gap_width /2 * 0.9
- overhang_b_height = overhang_a_height
- thick_eps = 0.1
- space_height = 2
- space_diam = 7
- overhang_top = 0.5
- cut_height = 2.8 # use this for easier printing
- cut_center = False # if false, cut is at the edge of smallest diameter of the spacer
- spacer = cq.Workplane("XY").cylinder(space_height, space_diam/2)
- clip_a = (
- spacer.faces(">Z").workplane()
- .circle(a_diam/2-thick_eps).extrude(a_thick, combine=False)
- .faces(">Z").workplane()
- .circle(a_diam/2+overhang_a_width).workplane(offset=overhang_a_height+thick_eps)
- .circle(overhang_top).loft()
- .faces(">Z").workplane()
- .rect(a_gap_width, 100)
- .cutThruAll()
- )
- clip_b = (
- spacer.faces("<Z").workplane()
- .circle(b_diam/2-thick_eps).extrude(b_thick, combine=False)
- .faces("<Z").workplane()
- .circle(b_diam/2+overhang_b_width).workplane(offset=overhang_b_height+thick_eps)
- .circle(overhang_top).loft()
- .faces("<Z").workplane()
- .rect(b_gap_width, 100)
- .cutThruAll()
- )
- spacer = spacer.union(clip_a).union(clip_b)
- if cut_height > 0:
- if cut_center:
- spacer_cut = spacer.cut(cq.Workplane("XY").box(100, cut_height, 100))
- else:
- min_diam = min(a_diam, b_diam) - 2*thick_eps
- min_gap_width = min(a_gap_width, b_gap_width)
- center_to_min_edge = math.sqrt(min_diam**2 - (min_gap_width)**2)/2
- spacer_cut = spacer.cut(cq.Workplane("XY").box(100, cut_height, 100, centered=(True, False, True)).translate((0, -center_to_min_edge, 0)))
- spacer = spacer.cut(spacer_cut)
- ############
- show_object(spacer)
- with open(r"spacer_2.5.step", "w") as fp:
- cq.exporters.exportShape(spacer, ExportTypes.STEP, fp)
|
