作者的提醒：
My settings with CuraEngine
Nozzle 0.3
Filament 1.75
Layer Height 0.2
Top/Botton Thickness 0.4
Infill Overlap 15%
Suport Yes
Brim No
Raft No
Part 1 and Part 2
Sell Thickness 0.5mm
Infill Density 25%
Part 3 and Part 4
Sell Thickness 0.6mm
Infill Density 98%
Part_5_Tree_Stand Print as you want!
Very important!
To save the balance, after slicing
each part1/2 needs filament without suport and skirt: 1815mm -+10mm
and each part3/4 needs 4315mm -+10mm, if not, you need to change some settings.
How to connect the parts?
1. Center Part1/2 with piece of filament and super glue
2. Connect the two remaining parts to the space by using super glue