Follow the original instructions provided by gokux.
If you having problems printing the top part just turn the logo up and use supports.
Parts that i used:TP4056 charging module glued on the battery-40mm fan-a litlle slide button you can use a bigger one you just need to edit the model or drill it bigger-battery if your battery can output more current obviusly it can give more power to the fan if its needed, try going up of 300mah but 200 already works-Led glue it with hot glue were the litlle holes are.
TIP: If your battery is to thin use a piece of cardbord or paper so the charging port can be in the right place.
The author remixed this model.
its bigger to fit a 40mm fan.