Hollow throwaway pillar to aid printing thin towers

This is a throwaway pillar that you can add to your printing plate to move the nozzle away between each layer in order to allow the top layer of your object to cool down. This is useful when your print fan does not cool your part down sufficiently, and you can't slow down your print speed any further.

Some people use layer change G-codes for this, but if you're lazy to figure out what your layer change G-code ought to be, or your slicer doesn't support arbitrary layer change G-code, then use