Fat man atomic bomb bead, parametric

This isn't the kind of thing I would usually make, but I've been enjoying the bead flash contest and felt this was missing. Available for download in 4, 6, and 8 mm diameter hole diameter, or you could use this parametric Onshape model to adjust to your specification. I printed at 0.16 mm layer height in PLA. On the smallest beads, the arachne wall generator is necessary or the slicer may not generate all the thin walls at the base of the print. I also recommend using arachne for the largest bead because it tends to work out better for me on parts with thin walls in general.