Horizontal and vertical sucking funnel for 40mm up to 80 mm fan to cool a V6 heatsink so I can print Policarbonate carbon fiber filament at 270C, if this is not good enough. The point is I am printing with a cheap Core XY or gantry printer and went to print around 300C, Polycarbonate and similar, and the Volcano 6 heatsink simply wouldn't cool enough with a 30X30 fan, so I went 50X50 with a straight funnel in PETG, and 2 things happen, one, it worked, second, it collided with the frame, the fan is too big so when I home it on Y... crash. Besides the lower part of the funnel clamp on the V6 started melting, not suitable for such temperatures.

So I went for a bent up funel to keep my 50X50 fan out of the frame, suck in colder air (The other one was technically sucking right above the 100C heated bed), than I went 80X80mm fan...

All attached to my manual tool swap system.

You want higher glass transistion temperatures materials, like Nylon, Policarbonate and anyway something thet can hold fast at 100C, this also means you have to print them at higher tempetaures, so modify your printer to be able to withstand 300C nozzle temperatures and higher please.

3D printing settings

I always print tools at 100% infill, 120% flow and the layer width larger than the nozzle (0.4 mm nozzle I print it at 0.5 width and 0.3 height) at the hoter end of that material, to improve adhesion, eliminate air micro gaps, make the part more resistant in use, and yes, that generates stringing, but I set my slicer to comb inside over the infill, so some of it is taken care of it this way.