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Crossflow Cooling for UM2 1.0

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About This File

This is a first try to bring the laminar crossflow cooling invented by @foehnsturm to the Ultimaker 2 without having to lay hands on your beloved shiny printer ;)It is attached with Tesa Powerstrips. Intention is, that air circulates through the fans and the long nozzle, across the printing layer, down left of the build-plate and back into the fans. The radial fans (Titan TTC-003) are quite cheap (<10€ each). I didn't want to waste filament and printing time on the large flat surfaces so instead I included some 0.8mm acrylic glas I had around.

When I'm satisfied this hopefully gives all the UM2 owners a cheap and simple way of a crossflow cooling.

It has still some shortcomings:

 

  • airflow is a bit weak
  • some air goes through the top and the front instead of around the buildplate
  • airflow widens and decreases from right to left

 

Right now it improves overhangs when combined with the stock fans but is too weak as the only cooling. Unfortunately the nozzle has to be that thin to prevent collision with the fan shroud.

Ideas for improvement are

 

  • a recessed cover for the front so the air is forced around the buildplate
  • an airguide on the left side, so that also with the buildplate lowered, the air is sucked in at the height of the current printing layer, maybe even equipped with another set of fans
  • a wider airnozzle to increase airflow and removing the stock fans and fan shroud

 




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