Mangalore Grenade Knob

For all those who've downloaded my Mangalore Grenade with no likelyhood of ever actually making it, now you can not make it more completely with the little vernier knob that goes on the end.
I've read that this now-obsolete knob was also used on Zorg's ZF-1 somewhere, so there's another bunch of Fifth Element fans who can also not use it.
You will doubtless notice I haven't put the numbers on the dial. I think that level of detail is still beyond most filament printers, so I haven't bothered.