Tevo Tarantula fanduct with sensor and carriage for sensor updated new version

this is a fan duct modify with a custom carriage thanks to my cousin, he is the best.
for the carriage is uses a 3mm screw by 20mm max. and it works great.
here is the video where i talk about this part and other tevo tarantula upgrade parts that im sharing with you guys. https://www.youtube.com/watch?v=FvuQxK82Ksk