3.3 lbs (1.5 kg) Dive weight mould

Not for 3D printing, unless you have a metal printer. This is more for my own safe keeping than anything else.

Wanted less weights on my diving weight belt so I made a negative mould for my own heavier (5 lbs, 1.5 kg) weight design. The design fits my thick (~3 mm) silicone rubber belt with a width of 50 mm.

I had the mould CNC'ed from a solid aluminium block. I had a load of lead sinkers I dove out lying around so I melted those down using a bunsen burner and a jam tin (backwoods engineer