It's not supposed to work but it does. I'm so happy, I always wanted a tall column.

Just print and slide together. Glue it, fill it it's up to you

The difference between the bottom and the top part is that the bottom has the slide guide and 20 mm taller.

I had bottom layers only on the top part

With my setup i could make one 2.7 m tall from a 1 kg spool.