[Ultimaker Original, magnetic mounted acrylic side and front panels]

I love my crossflow fan... And if you put some thought into how you arrange your prints on the platform in relation to the fan (eg. rotate heavy overhangs towards it, or rotate and place prints with holes, so that the air blows through the holes), you can get great results.

I got mine from a Danish webshop (I live in Denmark), that sell audio hifi equipment (the fan is used to cool massive car audio amplifiers), its an absolutely great fit, but probably dosn't make sense for you to buy from there (also, it was rather expensive), they also don't seem to be selling them anymore.

I saw some similar ones on Conrad:

http://www.conrad.de/ce/de/product/560546/Querstromluefter-Motor-rechts-12-V-X-Fan-DF43198-R/?ref=search&rt=search&rb=1

Its a good length and comes in both a left and right motor edition, but with a 6 cm. width you will have trouble fitting it in the side of the printer between the bed and frame... You can probably mod your way out of that..

 

Thanks for the reply and good to hear that the crossflow fan works good. I'll look to order one, but the one from Conrad (saw that they also have this on the Belgium website) would indeed need some modifications on the UMO+. So I'll first take a look at how to install it properly and maybe find one that would better fit in the Ultimaker.

[Ultimaker Original, magnetic mounted acrylic side and front panels]

Your UMO looks great, with the side panels and the magnet idea, love the idea, so I'll make something similar.

Then I'm also interested in the solution that you made with the cross-flow fan. I was wondering if this works good. So I would also like to a cross-flow fan, instead of closing the top of my UMO+.

Could you tell me which cross-flow that you used and if you bought it somewhere online?