Modular HDD 3.5inch holder

I need holder for my old 3.5inch HDD so I make one using my double wall OpenSCAD then edit on Blender to add grip so can be stacked or modular. After I print 2 of them its hard to connect the grip. I already make the grip smaller but not print again to test.
Need to print this with vase mode / spiral contour, optimized for Orca slicer (with setting below) but you can try your slicer.
If you dont want the grip then can use my Double wall OpenSCAD (dowallv3.scad) with this parameter:
dia: 138mm, tall: 58mm base:1.4mm side: 4 wall 2.82 nozzle 0.45 rib: 12 Inside: 0 Outside: 2 rot: 45
sca (scale) 1.1 : 0.5