When I heard another FB Ghost 5 owner told somewhere in the Internet that stock cooling isn't so good I didn't understand why until I decided to calibrate the temperature and saw this:
The tower wasn't fully completed because I stopped printing at the temperature 200 degrees Celcius - I used this temperature for printing before running this calibration and my expectation was that at this temperature the temp tower should be quite good. But in reality, it was awful - the bridge was sagging meaning something was wrong. I started seeking over the Internet for any tips and the one was related to the cooling - most likely it wasn't enough. I decided to check this out by replacing the stock cooler with another one bought at the local electronics store. Also, I printed several parts installed on the cooler:
- the nose - to direct the cold air exactly where it's needed
- the shield - to avoid sucking the hot air from the bed
After all the modifications the cooler looks like this:
After trying to run the same temp calibration tower the result was quite pleasant:
Even at the temperature of 210 degrees the bridge became pretty much acceptable although we can observe a definitely signs of filament oozing meaning this temperature is too high for the printing.
Accidentally, I came accross another fan duct model, which transfers a cooled air from 2 sides. I decided to give it a try and that's what I got using it:
Basically, the improvement of the print is very noticable - oozing and stringing almost gone, and the bridge is quite good for almost all temperatures!
And that's how the fan duct looks printed using the PETG filament:
