Show all posts by user
RepRapPro's Ormerod http://reprap.org/wiki/Ormerod
Re: Hotend fan - 10 years ago
The PSU fan is not my main source of noise - it's actually comfortably quite. It's the hot end fan I was planning to make redundant.by michaelljunggren - Ormerod
Re: Hotend fan - 10 years ago
I'm also toying with the idea of leading the exhaust air from the PSU via a hose to get rid of the fan all together. The noise levels must go down at least 20dB. I'm not concerned the air would be too hot. It's less than 30C anyway. Have anyone done such a thing?by michaelljunggren - Ormerod
Re: Hotend fan - 10 years ago
Thanks for the info. I measured the voltage on the fan when the heaters went on & off. Obviously ~50 must have been my imagination, because the voltage drop is nowhere near that. In fact the 12 V varies between 15-17 V, so you might even say it's not draw enough to even bring it down to 12.by michaelljunggren - Ormerod
Hotend fan - 10 years ago
Greetings. This is my first post here. I bought my Ormerod from RS a couple of weeks ago. My hotend fan, which seem to be running constantly, also seem to vary in RPM when the heating elements go on. Is that normal? When both bed & extruder elements are on, it would seem the RPM is down at about ~50%. Doesn't that affect cooling? Since the bed is also going on & off every 30 second, it fby michaelljunggren - Ormerod