Please refer to the video for instructions :

Parts List:

1xSTC-1000 (Digital Temperature Controller) : https://s.click.aliexpress.com/e/_DBajNad
1xPTC Heater (12v 200w) : https://s.click.aliexpress.com/e/_DkmW3E5
Silicone Wire(18AWG) : https://s.click.aliexpress.com/e/_De9HYtr
2x50x50x20 Cooling Fan(12v Dual Ball) : https://s.click.aliexpress.com/e/_DECAI2Z
2xFan Guard(5cm) : https://s.click.aliexpress.com/e/_DlUtOet
1x16/20A Switch(4PIN On-Off) : https://s.click.aliexpress.com/e/_Dmudvw5
1x30A Relay : https://s.click.aliexpress.com/e/_DeElrNb

Tubular Terminal : https://s.click.aliexpress.com/e/_Dl4mZp7
Box Insulated Wire Connector : https://s.click.aliexpress.com/e/_DldST6V
Crimping Pliers : https://s.click.aliexpress.com/e/_DEvtIvf
Heat Shrink Tubing : https://s.click.aliexpress.com/e/_DBmQ9nJ

M3 or M4 Bolt & Nut Set : https://s.click.aliexpress.com/e/_DnKmzCZ
Quick Splice Connector : https://s.click.aliexpress.com/e/_DE4B4DJ
Waterproof Wire Connectors : https://s.click.aliexpress.com/e/_DBdw3GZ

In the meantime:
Happy making!
Please post your makes builds.