Get a fan from a well known brand. I use Sunon and Ebm-Papst Fans.
On my Aero extruders I use the 414F/2 model from Papst.
I may be missing something, but that seems to be an axial fan. The issue Jason and I are having is finding a 24v blower fan.
Get a fan from a well known brand. I use Sunon and Ebm-Papst Fans.
On my Aero extruders I use the 414F/2 model from Papst.
I may be missing something, but that seems to be an axial fan. The issue Jason and I are having is finding a 24v blower fan.
I second this request. I can find loads of cheap, and expensive, 24v blowers, but none seem to be designed to run quietly with the Duets PWM setup. The best I've found is a fan from Mechatronics (B5015E24B-BSR ), but it does make a lot of electronic noise below 100%.
No rush, it's not loud enough to be an issue, it's just something that I noticed and wanted to confirm the source of. Is this a benign issue, or is there a risk of damage to the drivers/motors?
I'm experiencing a similar issue, where it sounds like, very quiet, white noise coming from both my x and y stepper motors. Is there a recommended process for figuring out which parameters to change, and by how much; or is it going to be a trial and error process?
David,
Thank you for responding so quickly. I'd like to clarify something regarding your first answer.
No, because the WiFi module uses a dedicated high speed SPI bus that isn't available on the expansion connector. That high speed bus is needed to get good file upload speeds.
Does the ethernet-daughterboard also require the high-speed bus, or would the expansion bus support it?
I'm about to buy a duet and, based on the discussions on the forum, I have a question or two regarding ethernet vs wifi. I'd like to have the option to go with either, and I realize that there's not an option for that right now. It seems to me that it would be easier/more-stable to get the wifi from the ethernet version than the other way around; I can always plug the ethernet cable into a wifi extender. Would it be possible to add make an ethernet add-on board which would work via the expansion header? Someone on another thread mentioned that the Ethernet-daughterboard works via SPI, and I thought that I saw extra SPI pins available on the header.
Alternatively, what would be involved in creating a wifi-daughterboard? If it's just a question of mounting an ESP8266 to a PCB with the correct headers, I can probably manage that.