Working on a new effector design to help reduce parts, weight, as well as have a more direct and balanced cooling path. The design integrates the ducts for two fan inputs into the effector itself, which makes for a shorter path as well as a wider escape area to hopefully reduce backpressure. I am currently working on a number of flow simulations to create the best flow path to also make sure that the cooling is distributed as evenly as possible. Initial test prints look promising!
Looks pretty cool. What kind of fan are you using?
Why do you want to decrease back-pressure? Are you sure a full ring with low backpressure is actually better than 2-3 small jets?
@Ryan_Carlyle the goal is to use two of the commonly used blower fans (I call them squirrel cage style).
The overall idea is to make the entire thing universal for any hotend or fan style by mounting them above. While for the blower style, I am not overly worried about backpressure, I have run into issues with the typical 40mm fans in the past and wanted it to counteract it and work for both here.
I am still not sure if it will be better than a couple super direct paths but I’m willing to give it a shot! Going to modify the path a bit and run a number of solidworks simulations to see how it stacks up.
Is the goal to put the fans sideways? I worry you will limit your travel ability b/c of how far they stick out.
Love the design! Please do keep us updated. I’ve been wanting to build a mini Delta printer for a while but my biggest problem has always been fitting in enough cooling so I’m definitely interested in this.
@raykholo nope! They will be mounted to the left and right of the hotend and pointed nearly vertically downwards. I will be modifying the air path to make sure it has the most even flow around the entire hotend.
@Blake_Dunham thank you! That was my biggest worry while designing my delta. I wanted to keep everything modular while also not losing any necessary traits for excellent prints.
I think circular ring airflow is a good option and there’s nothing wrong with trying for it. Just… in general… I don’t understand why everyone seems so obsessed with full-circle ducts when physical experiments show a few directed jets is equally or more effective.
Well, if it looks good, and works good, I would rather have that. I think circular ducts have their place in the 3D printing world. And it’s an engineering challenge. Making one work effectively is really appealing from a design point of view. Also they look cool so +100 for style points.
A little back pressure will help maintain a uniform flow around the entire nozzle throat.
That is beautiful!
That looks cool.