NeedleΒΆ
# main shaft
a = Part.makeCylinder(1.0, 55, Vector(0, 0, 0), Vector(1, 0, 0), 360) a = a.fuse(Part.makeSphere(1.0)) # Part.show(a)
# bent end shaft and point
b = Part.makeCylinder(1.0, 5, Vector(0, 0, 0), Vector(0, 0, 1), 360) b1 = Part.makeCone(1.0, 0.3, 4) b1.translate(Vector(0, 0, 5)) b2 = Part.makeSphere(0.3) b2.translate(Vector(0, 0, 5+4)) b = b.fuse([b1, b2]) b.rotate(Vector(0, 0, 0), Vector(0.5, 1, 0), 90) b.translate(Vector(55, 0, 0)) # Part.show(b)
# fill between shafts
c = Part.makeSphere(1.0) c.translate(Vector(55, 0, 0)) # Part.show(c)
a = a.fuse([b, c])
# Part.show(a)
# hole for thread
# center origin, X , Y radii, default orientation normal to z-axis e = Part.Ellipse(o, 5, 0.4).toShape() e.translate(Vector(6, 0, -1)) d = Part.Face(Part.Wire(e)).extrude(Vector(0, 0, 5)) #Part.show(d)
h = a.cut(d) #Part.show(h)
# smooth thread hole edges
# cannot get fillet to work with these edges #edges = [] #for e in h.Edges : # if (len(e.Vertexes) is 1) and e.Vertexes[0].Point[2] in (1.0, -1.0) : # edges.append(e) # #h = h.makeFillet(0.3, edges)
# so cut out another ellipse across the top of the hole # This leaves somewhat sharp edges #This works in Freecad, but printing is a real problem because of the long # bridge, and the sides areery narrow. Might try with a smaller nozzle. # However, even without it the edges are too small to print with 0.4mm nozzle, # or I have to make other adjustments I have not yet figured out.
# e = Part.Ellipse(Vector(0, 0, 0), 6, 0.3).toShape() # e.rotate(o, x, 90) # ceter at origin, about x-axis # e.translate(Vector(6, -2, -1)) # d = Part.Face(Part.Wire(e)).extrude(Vector(0, 5, 0)) # #Part.show(d) # h = h.cut(d) # # d.translate(Vector(0, 0, 2)) # h = h.cut(d)
#Part.show(h)
- m = MeshPart.meshFromShape(Shape= h,
- LinearDeflection=0.1, AngularDeflection=0.523599, Relative=False)
# why both of these ? Mesh.export([m], “needle.stl”) m.write(Filename =”needle.stl”)