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Good dual fan setup for UM1

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Hello everyone

Im in search for a good dual fan setup, much like that on the new UM2.

First problem: Currently im printing thin (ø5-6mm) cylinders, and the surface on the "shadow" side facing away from the fan is melted an odd.

Second problem: Printing these thin cylinders, my overhangs get bad, so i guess fan shrouds wich sits close to the nozzle would be preferble?

i need your designs, ideas, thoughts on thei subject. Pictures of various type os shrouds would be mighty fine!

 

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Hi! There are several designs available.

I also designed a shroud made of alu sheet metal similar to the UM2, but there are also UM2 like printed variants.

Look at youmagine but also also at thingiverse, there is e.g. my version... :-)

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