0.4 nozzle 0.2 layer height

[@3D_Printing]

May try this idea using that pipe :)
Ultimate Bridging 3D Printing vacuum duct, maybe ?? CRAZY!!
Instead of blowing air to cool filament use a vacuum to draw air in and up
to overcome gravity which causes the filament to sag while bridging
This has not been tested. It is just an idea. A Crazy idea?
One issue is that the nozzle may push the filament down..
ua-cam.com/video/gxTbsTDknnU/v-deo.html

[@ceeyx1]

I had similar idea to try vacuum instead blowing air

[@3D_Printing]

@@ceeyx1 please if you can try it out, the pressure has to be corrected at different positions I guess and some filaments may not like any cooling actions, ABS, etc. Flexible filaments may be much more difficult I think. 💪