A ribbed, spiky barrel cactus that screws together from printed segments. Print one segment for a 14 cm desk cactus or stack several for a tall one.

AI-generated design: the model was created with an AI 3D generation tool and then reviewed and checked for printability by the AssetLoom team.

What's included

• cactus_1_base.stl, cactus_2_segment.stl (stackable), cactus_3_flower_cap.stl
• desk_cactus_print_plate.3mf: one of each part arranged on a plate (mm units)

Specs

• Assembled with one segment: 73.4 × 72 × 142.5 mm; every extra segment adds 41.25 mm
• Printed threads with ≈0.3 mm radial clearance and 10.75 mm engagement
• All parts manifold and watertight

Print settings

• PLA (a sage or cactus green looks great), 0.16–0.2 mm layers, 3 walls, 10–15 % infill
• No supports needed in most slicers (only small thread-flank overhangs on the male threads)
• Tight threads? Print finer layers or scale the male part to 99.5 % in X/Y

Blender check (live Blender 5.2.1 session)

Fit: segment-on-base seats at z = 43.25 mm and cap-on-segment at z = 41.25 mm (relative to each part), both with 0 intersecting triangles in a BVH sweep; assembled pose has no part-to-part intersections.

Checks: bmesh non-manifold/boundary edges, loose geometry, degenerate faces, face-winding consistency, signed volume (outward normals), shell count, bounding box in mm, overhang area (faces steeper than 45° from vertical, bed layer excluded), and BVH triangle-intersection tests for mating parts. Not yet physically test-printed.