A blue line is margin for paste.
Put glue on the blue line, and add a part.
Add three parts more in the same way. It will help you. Crystallized assembling 5 parts
Got three parts together
Got four parts together
Got five parts together
Put glue on a blue line, and paste it together to the first part.
Curl 10 parts
It's needed 12 unit.
About way to assemble them into the whole, please see Crystallized assembling.
Crystallized assembling into the whole