Quote
hercek
The one pointing at nozzle is there to cool the printed part and not the nozzle. Cooling the tip of the nozzle is just an unwanted consequence of cooling the printed part around the nozzle.
Thanks, Peter, for the reply, but now that I think about it (and not to be argumentative, just curious) why are there fan shrouds on Thingiverse for J-heads to confine the airflow across the J-head's PEEK cooling fins? They say its to keep the heat from reaching the effector plate, or melting the Teflon liner inside - that makes sense, but is it just gilding the lily?
Is cooling for the part being printed required for some plastic and not others? - I see many printing away on YouTube that do not have any fan. If so, could this be done by a fan mounted off of the print head, like to the side of the print table?
