I tried with both tree support with same PLA as support and classic support with Bambu Support filament for interface. Both looking not good as overall but support filament is better than other.
I saw lots of threads over it but I cant understand how this long know problem isnt solved or addressed. It must be an slicer bug or something similar.I dont want to use support filament because I only have 1 AMS unit and I’m trying to print with 4 color.
Left one is tree support with same PLA as model.
Right one is classic support with Bambu Support Filament.
If you look at the supports where it interfaces with the model is that where the missing material is? And when you sliced it when it showed you visual of where the GCode would be working in this area what did that look like?
In my most recent experiment, the top surface came out so beautiful … it was hard to look at. It was perfect. Then I flipped it over and the bottom surface over the supports looked like 5 miles of bad pothole road.
This last experiment was pla-cf with same filament for supports and a .1 top Z distance. The support filament was very easy to remove. The image in the slicer looked normal as best I can tell.
Sure would like to get past this very expensive (wasted filament) lesson.
After reading a bit, I took the layer height down to .12, top Z to .2 and printed in silent (slow) mode. The top surface still looked perfect, but the surface against the supports looks much better. I’d give the bottom surface (against the supports) at an 8 out of 10 for quality.
Some things to keep an eye for: take a look at value Top Z distance, by default its .5, this means that the bottom layer of the job does not sit directly on top layer of support, there is a one layer gap, you can set it to 0 so that job will touch directly support, but it will make it harder to remove support. other thing is to keep an eye if bottom layer of job does not go parallel to the support, especialy if support is low density, lastly, the density of top support layer itself, you can fiddle with it a bit.
