Wanhao Duplicator 6 Fan duct

Order extra 24v fan to connect in parallel to the factory fan. Mount using m3 bolts/nuts.
I used left-over space of thread used for bearing in the carriage for mounting support rod. Make sure you have space and your bolt is not touching the small one that is inside he shaft to hold the bearing.
Use abs or pet/g to print the parts.

After some prints i still got too much heath from the cartridge in the back. So i took a piece of aluminum of about 5x7 cm and bended it to fit under cartridg