> > > But one of the first mods I made was to replace the chute that directs > that fans air in the general direction of tyhe nozzle, with one I > printed that aims the air directly at the nozzle with its shape.
That might explain a problem.The purpose of the fan is not to cool the nozzle but to cool the plastic that was just laid down. It has to work equally effectively if the nozzle is moving left or right The idea is that the plastic needs to be liquid while inside but needs to turn solid just as soon as it is maybe 1/2 millimeter from the nozzle tip. I think the first shape might have been better. The general area around the nozzle is what needs the air, not on the nozzle itself. This is why the printer is able to print moderate overhangs and bridges, the fan cools the plastic before it has time to fall. -- Chris Albertson Redondo Beach, California _______________________________________________ Emc-users mailing list [email protected] https://lists.sourceforge.net/lists/listinfo/emc-users
