Robotic Arm Boom Segment Assembly

Create a 3D CAD assembly of a space robotic arm boom segment. Units: millimetres. The boom axis is along +X, with the origin at the centre of the joint-side flange face. PART 1 – Boom tube: - Hollow circular tube, outer diameter 100, wall thickness 3 (inner diameter 94), length 1380. - Tube starts at X = 20 and ends at X = 1400. - Add 0.5 x 45° chamfers on both outer edges. PART 2 – Joint-side flange (at X = 0): - Circular flange disc, outer diameter 160, thickness 12, from X = 0 to X = 12. - Pilot spigot on the outer face: diameter 110, height 5, protruding in -X (from X = 0 to X = -5). - 8 clearance holes, diameter 8.4, through the flange, equally spaced on a 135 mm pitch circle diameter. - Insert sleeve extending in +X from the flange: outer diameter 94 (fits inside the tube), wall thickness 4, length 60 (from X = 12 to X = 72). - 6 radial holes, diameter 6.6, through the sleeve and tube wall, equally spaced around the circumference at X = 45. - Central through-bore, diameter 50, for cable pass-through. - Fillet radius 3 at the flange-to-sleeve junction. PART 3 – Tool-side end fitting (at X = 1400): - Insert sleeve: outer diameter 94, wall thickness 4, length 60, sitting inside the tube from X = 1340 to X = 1400. - 6 radial holes, diameter 6.6, through the sleeve and tube wall, equally spaced at X = 1370. - Transition: a solid cone frustum from diameter 100 at X = 1400 to diameter 130 at X = 1430. - Square interface plate, 140 x 140, thickness 15, from X = 1430 to X = 1445, centred on the boom axis, with corner radii of 10. - 4 clearance holes, diameter 10.5, on a 110 x 110 square pattern. - 2 dowel holes, diameter 8, depth 12, diagonally opposite on a 90 mm pitch circle diameter. - Central through-bore, diameter 40, for cable pass-through. - 4 triangular lightening pockets, 8 deep, on the plate's -X face between the bolt holes. Overall length from the spigot face to the interface plate face: 1450. Material for visualisation: aluminium 7075-T7351. Output as STEP. Joint-side flange: Units mm, axis along X. Circular disc OD 160 x 12 thick. On one face, a 110 dia x 5 high pilot spigot. On the other face, a hollow sleeve OD 94, wall 4, 60 long. 8 x Ø8.4 through holes on a 135 PCD. Central Ø50 through bore. 6 x Ø6.6 radial holes in the sleeve, 33 from the flange face. R3 fillet at the flange-sleeve junction. Tool-side end fitting: Units mm, axis along X. Hollow sleeve OD 94, wall 4, 60 long, connected to a cone frustum Ø100 to Ø130 over 30 length, ending in a 140 x 140 x 15 square plate with R10 corners. 4 x Ø10.5 holes on a 110 x 110 square pattern. 2 x Ø8 dowel holes, 12 deep, on a 90 PCD, diagonally opposite. Central Ø40 through bore. 4 triangular pockets, 8 deep, on the back face between the bolt holes. 6 x Ø6.6 radial holes in the sleeve, 30 from its free end.

Parameters

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