I have been having issues with tree supports snapping in the middle of a print. I have already changed the infil of the model to gyroid as to not have criss cross lines but the issue persists.
I see that I am unable to increase the wall loops above 2 and the option “base pattern” doesn’t seem to work on tree supports.
Does anyone have any idea as how to fix this issue? I have added a picture of the latest failure as context.
Thanks in advance!
Dry your filament.
Wet filament over-extrudes and gets stringy. That causes excess filament to build up on the end of the extruder. When it gest big enough, that excess eventually gets randomly deposited on the top layer of whatever is being printed, where it cools in to a lump that is higher than the current layer height. So when the printhead comes around to that spot on the next layer it hits the blob. If whatever gets hit is solidly attached to the build plate, and strong enough, the nozzle rides over the lump and printing continues. If what it hits isn’t solidly attached to the build plate, it gets knocked over. If it’s not strong enough, it gets broken in half.
You don’t need stronger supports. You need to tune up your filament to eliminate the cause of the supports getting busted. 
hey thanks! ye i noticed it was quite stringy. i’ll do a dry cycle and see how it goes!
thanks for the help!
Also, calibrate all of your settings by doing Flow calibrations, as that usually helps a lot.
i do this almost every print and always when changing rolls but thanks for the tip!
You can make tree supports stronger by increasing Support Wall Loops. I had failed prints due to tree supports with eggshell thin walls. Upping the wall loops from 1 to 2 made the supports much more rigid and reliable, but at the expense of some filament.
Ok, I found a really good answer to this, with a caviot.
Several people have been asking for INFILL for supports… Well, its in there.
I was having the same clasic issue of tall trees being brittle, so I did lots of reading. LOTS.
What no one tried was STRONG tree supports. Guess what, they have internal INFILL. Not much, but it is in there. I have not tried to see if I can change the patern.
What I setuo with the Stratford Bunny was:
Orca Slicer 2.3.2-Beta 2 (Current Orca-Flashforge behaved the same)
Orca Slicer Tree Supports: Auto
Tree Strong
Support Loops: 2
Base Partern: Rectilinier
BIG NOTE. BIG: This drives Slicing time through the roof. My Slicing, on my real project, went from 5min to “go get some coffee” and my print time from 1+ days to almost 3 days.
Now, I have not printed using this yet, as it takes 2+ DAYS to see if it worked as it never fails in the first few hours. But I will take a long print time over a failed print any day.
