I believe this is the last quality issue I have in my printer, better than that and I’ll need hardware upgrades.
How to get appropriate pŕinting cooling?!?!
The problem I’m having are some lines on the outside perimeter getting “unbind” crating some straight gaps on the outside surface.
I believe it is due to excess cooling during print.
It could also be the hotend temperature, but my tests shown a decaying quality level as the hotend temperature rise.
I’m currently printing with PLA, heatbed at 60°, hotend at 210° and I have two 40mm fans each side of the hotend.
The fans are not the same brand and spec, I know this is not ideal, but it is not the cause of the problem itself.
They were connected in parallel, but the minimum settings for they to turn on and KEEP spinning were already too high. Now they are in series, which made it a little better (more torque less tension) but still not low enough.
Any smart suggestions?
I thought about opening some blowholes on the sides of the duct vent to lower the pressure at the end.
I would really like to use one of those omnidirectional toroidal one fan solutions, but they are fixed to the hotend and I need an option with height adjustment.