1/2" NPT Black Pipe

I wanted black pipe sections that would work with my pipe floor flange model https://makerworld.com/en/models/1135881-pipe-floor-flange#profileId-1137109

I made a couple different lengths, 2", 3", 4", 5" and 6" along with a connector if you wanted to splice together to make different lengths.  I used adaptive layers so the threads print smoothly.  I recommend a brim for anything over the 2" and connector part.

My flange and these pipe sections would work well to make a shelf or even a monitor riser, if you like that industrial pipe look.