Gently remove any supprtmaterial.
Glue part1 and part2 together.
Glue part3 and part4 together.
Put the 18x part8 in the assembled part1 and part2.
Connect part9 and part11 with 3mm filament.
Glue the 9x part7 together in the follwing order:
1 = 0°
2 = 120°
3 = 240°
4 = 200°
5 = 80°
6 = 320°
7 = 280°
8 = 40°
9 = 160°
Snap part6 together with part5 and glue it to the assembled part7.
Take the assembled part7 and snap part9 and part10 together on it.
Put this assemble in the assembled part1 and part2
Now put the assembled part1 and part2 with the part3 and part4 asembly togehther and you are ready.