[hirundo]

PLA gets so much stronger when annealed. Would it be within the spirit of the challenge to print this upside-down so that it can support the sphere, but only after annealing? Or you could anneal the pillar with a small heater as you print it.

[foobarian]

Oh my God I didn't even realize this was a thing. Thank you and there goes my evening! :-)

[arcanemachiner]

Just note that it will also shrink the print.

[cassianoleal]

The bonds between layers get stronger when annealed. I don't think it will make much difference in this case since there are no layers in the pin.

[akiselev]

If you’re actively heating the chamber to anneal the plastic why not just print in PETG or polycarbonate?

[stavros]

Why do you need to heat the chamber to print in PETG? Or do you mean "instead of"?

I agree, BTW, PETG is much better.