I wanted to improve the airflow for PLA prints, so I switched over to a centrifugal blower type fan (this one: http://www.amazon.com/gp/product/B00H8VV0XK/ref=oh_aui_detailpage_o00_s00?ie=UTF8&psc=1). While it makes a world of difference in air flow, it also rattles like crazy on any x-axis movements. The axis of the fan motor and my x-axis are parallel, so I imagine any small vibrations cause the fan blades to rattle.
Is anyone else using this kind of fan and what type of mounting are you using? Currently I just have it secured by one of the mounts so I can still adjust the position as needed. If I just rest my fingers on the fan body as it is rattling, the noise goes away. This tells me that mounting it more securely (using both mounting holes) may remove/reduce the vibration. I think removing this awful noise may be more beneficial to me than being able to adjust it.
Currently printing, so the photo is slightly worse than I could provide with a stationary machine.
Why not blow I to a little hose you could then mount on the effector. Remoting the blower to where it won’t move?
How about if you mount it flat instead of on its edge.
I think I will attempt to combine both suggestions. On its side puts it off axis with the motion, and of the carriage gives me a stronger mounting base. The only problem (which is why I have it mounted this way) is coming up with the tube/hose/whatever to channel the airflow towards the hot end.
I have not used one yet but mostly anytime i see them they are placed where you have it but flat and not using a outlet hose. Hope this helps.
I started using a blower like this a few weeks back and the results are good but I’m not very happy with the way I have it mounted
do you have on 100% of the time or are you controlling the fan speed with your slicer?
Full blast! I have the slicer configured for 100% min and max.
Your setup is nice and compact and looks like it automatically tracks along with the head, but it might be worth considering having it on a separate/isolated arm so that any rattle (and gyroscopic “resistance” to movement in certain directions) does not affect the print.
