Many thanks to all the generous people who contributed to this discussion
This approx 200 X 200 X 200mm
Printed in 3d Jake PLA that has a sort of reflective, metallic effect.
I love how you can see the mesh faces which give it an almost carbon fibre effect.
I also love how this shape can be printed with no support material despite being an almost continuous overhang!
Took 25 hours to print on a Bambu Labs P1P