Filthy surface on overhang
Hello,
so far I only had great prints except for some adhesion problems I need to look into. But this turned out a bit strange on the slight overhang. The other side looks ok, its just half of the overhang that looks like this. What could cause this? Its not a very big overhang.
Thanks
Kind regards
"Man who says it cannot be done should not interrupt man doing it" -Confucius
RE: Filthy surface on overhang
The parts fan only blows from one direction so the section facing away from the fan gets less cooling.
RE: Filthy surface on overhang
The poor surface is due to the so-called 45-degree rule. An overhang that has a slope of less than 45 degrees can be very difficult to print. Different filaments give different good results. You get even better surface and you do the first part with a 45 degree slope.
Bear MK3 with Bondtech extruder
RE: Filthy surface on overhang
Thanks for all the replies! I tried it with 0.15mm layer height and it turned out better. But the side facing away from the fan is always a bit inconsistent. So I guess I will try some fanduct mods.
"Man who says it cannot be done should not interrupt man doing it" -Confucius
RE: Filthy surface on overhang
Here is a good start.
https://www.thingiverse.com/RH_Dreambox/designs
Bear MK3 with Bondtech extruder