Assembly:

The first piece is titled base. Place the piece titled disc1 on the rod and press down. You may need to use a decent amount of force, as there is little tolerance, making operation better. Make sure to put it in the same way it printed (same orientation). Then, put disc2 on, pushing it all the way. Lastly, put cap on. If you want, you can glue cap to the walls of base and to the pole of base.

Please feel free to contact me with any problems. I will do my best to fix them as quickly as I can.