It worked!

1 meter tall

1000mm tall

39 3/8" tall
It is crazy. All one solid piece. Strong too. I've happy. I had to pause the print job a few times. Total print time, 29 hours with 8 hours paused time included. So 21 actual printing hours involved.
Here it is as it was printed. The 10mm brim at the bottom helped keep it in place. See the top gap? I could go 200mm (8") higher and hit 4 Feet.

Measured

1 meter

Fulled sized Airsoft BB rifle next to it. Yep, this means I can print out full sized rifles. Stronger than the plastic tops on soda pop bottles, light weight as Mithril.

Smug bastard sitting in my chair.

This is cool. Took up my weekend but I've never heard of this being done before. It's one thing to build a huge printer and claim it can do something. It's another thing to put your money where you mouth is and actually prove it can do it.
That'll do FR3D. That'll do.