UM2 Centrifugal Fans Duct

Alternative print cooling by Centrifugal Fans

3D printer parts and enhancements

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At the same power level, the centrifugal fans give more air flow, have no vibrations and are a lot quieter vs axial fans. Warning : Fan duct Olsson block adapt only ! for the old stock UM heat block that may be needed to modify the hight under the heat block, use step files eventually to any modification.

Materials and methods

Following the precedent design shared here:

Print with the PLA or the medium heat resistant material of your choice
0.1mm layers & 0.4 nozzle recommanded
centrifugal fans sourcing :
metal sheet cut from any beverage can of your choice
metal sheet forming process description



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F77664944d69a98a1027a8327d54ec7c?default=blank&size=40my3d added this to the UM2 collection ago
Mini joecolemanJoeColeman added this to the hbh collection ago
Mini fredholliFredHolli added this to the r5t5ytry collection ago
Ce371f1042c81fcedfe0e7e893fbd339?default=blank&size=40LONGVEN added this to the UM2 collection ago
2577c6bcc26416c0621103c98211fefd?default=blank&size=40Sugimori added this to the Duct collection ago
Db8de2bac751bd8a45a2e2d5b7785d2f?default=blank&size=40yee379 added this to the ultimaker collection ago
F5386f7b48f5447de57721349b12e1f7?default=blank&size=40thumbinator added this to the UM2 mods collection ago
C932ccdad2c6671b5d979c61416d3cf6?default=blank&size=40Daedalos added this to the UM2 parts collection ago
Mini profilbildAlexander Leisentritt added this to the UM2 collection ago
757afd63c33187d0eb17d8eb6b6914b1?default=blank&size=40David Bjerre BjΓΈrklund added this to the Ultimaker collection ago
8a7f35a97ae8de95e445c0cb06244096?default=blank&size=40luis miguel Lorca added this to the proyectos collection ago
E0e6ac36352b5a945b95dcd0fb06f445?default=blank&size=40JohsonChou commented ago

Not sure if this actually help cooling... There is only 1.66CFM output each on these 35mm fan where the stock fan on UM2+ is 2.2CFM each.

You can get quality 30mm axis fan with low noise at 2.8CFM fair cheaply, where the best reasonable priced 35mm Centrifugal outputs 2.2CFM.

Centrifugal fan does have higher pressure, so I guess they are eventually comparable.

3bfaff92c540447b677fd1f2b0c09ef5?default=blank&size=40Quim Laurens added this to the um2 FAN mod collection ago
Dcc1fa08605ddfdcbda2bc20d7a8ebfe?default=blank&size=40Werewolf commented ago

Is there any thread on a forum or any notes somewhere about the developement of this ? Or a comparison, even anedoctal, with the new stock 2+ fan shroud?

Dcc1fa08605ddfdcbda2bc20d7a8ebfe?default=blank&size=40Werewolf added this to the Uppgrades collection ago
0cdd1210ae39a8491ae1c59b28737170?default=blank&size=40_john_ commented ago

Your design looks awesome!

I have 40x40x10mm 12V fan, could you easily change your part so it could be compatible with those?

Anyway thanks

Mini madfish avatarcatohagen added this to the umo collection ago
Mini sin city a dame to kill for eva green sin city avatarVivaSentenza added this to the UMO+ Upgrades collection ago
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077e146d5f7d17eb409d591e11311bd6?default=blank&size=40Daniele Ribolla added this to the shotty's stuff collection ago
C56bb8a7a01df4e38fc1e58135de6d23?default=blank&size=40JustKrys added this to the Things to Print collection ago
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D22a4a307819fbb007e9e412bbdc63bc?default=blank&size=40brhamburg added this to the UM2 collection ago
93e3ef895b0f697f976049655a64a15b?default=blank&size=40Shingo Cho added this to the um2 collection ago
Cc08ffa669f01f88c5864727d98fa191?default=blank&size=40nilrog added this to the Ultimaker extras collection ago
60c8691cedfcf939fc352716b43d5248?default=blank&size=40Chris Branson added this to the Printer Parts collection ago
987c5ceadcbccee52137d23bdda54b1e?default=blank&size=40avogra added this to the UM2 stuff collection ago
8f9aafa18275f3ffd97b5aedb728cdc4?default=blank&size=40JJG added this to the UM2_Upgrade collection ago
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Mini photo on 27.07.12 at 16.44Terra printed this ago
Carousel thumb img 2826
Printed on:
Ultimaker - The Ultimaker 2
this upgrade is really good
had some problems with the clearance first, but then printed a modified printhead bottom part and everything works
Mini gc1 print 3d printgudo commented ago

Hi Terra

I had not experienced this problem

would you please to precise more the X-stop issue,

if it's possible, a picture will help me

thanks !

Mini photo on 27.07.12 at 16.44Terra commented ago

Hi gudo,

I printed the fan shroud and it looks really great. Unfortunately the shroud interferes with the x-stop on both sides. How did you solve this problem?

95ae9423d1d45838bab8b41d5b442708?default=blank&size=40Nalby added this to the printer stuff collection ago
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Mini aviator2 small png iconChris added this to the UM2 Parts collection ago
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6fe419e9d9e8a893bf30f7b9d92b1f68?default=blank&size=40kesjeff added this to the Ultimaker collection ago
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Mini gc1 print 3d printgudo published this design ago