The fan mount has a second set of holes for mounting the fan so that it extends below the mount. The air coming from the bottom portion of the fan can then be redirected onto the print, but you have to be careful to avoid cooling the nozzle. Early on, we made fan shrouds out of business cards and polyimide tape that worked pretty well. We designed a printed version, but we have since made a change to the hot end design to make it more reliable that made it longer, so the air would hit the nozzle if we used it now.
If you're not already, you should be using a minimum layer time of at least 20 seconds, with or without active cooling of the print. This will slow down layers that would otherwise take less time to print so that the plastic has time to harden before being printed on. With this setting, active cooling of the print should not be necessary, but you can still use one if you want. Unfortunately, none of the ones on thingiverse are likely to fit, but you can use the business card (or any comparably stiff paper stock) and kapton method, and I'm sure we will release a new printable shroud design eventually (though our customers are so great that I bet one of them will beat us to it