Try bumping interface layer to 3. Sometimes I find more layers help keep it more rigid and bonded while pulling off from the model. Still, I get the occasional strands, but it does seem fewer as most of it comes off in chunks.*
** disclaimer: experience in X1C. H2D may vary, but let’s dot the i’s and cross the t’s before saying so.
I have installed the Rosahl MDL-3 solid state dehumidifier on my AMS-2. it keeps the humidity down to 5% or 6% if you dry the filaments first or just let it run for weeks. (see CNC Kitchen solid state dehumidifier on youtube ). If you do this mod remember teflon tape for the bolts.
I am wondering with PVA or BVOH use, would a dedicated 24/7 dryer be better? I have the AMS-HT but it only runs on demand and when you aren’t printing…
My first roll of BVOH worked great with my settings (similar to yours : temp higher at 245c, Z offset lower at 0.08 instead of 0.20 , style=normal not tree. I also turned off cooling fan for better adhesion of BVOH to PLA (see filament settings).
My 2nd roll of BVOH must have shipped wet as I cant seem to dry it… The humidity in the AMS-HT is at 20% even after a 5 hour dry, it climbs pretty quick again… i dried it at 5 hours at 55c as recommended, And my same test prints are failing (clogged nozzle). I suspect from wet support filament. H2D makes changing nozzels easy and I bring it to the garage and clear it with blow torch and allen key like you and someone else suggested…
I’m dying to have a reliable dissolvable support material. The first roll was great for many prints, but then it must have gotten wet sitting in the AMS-HT idle for a few days…
I’m going to try moving it to the AMS2 with the rosahl to see if that solves it. If that fails, ill get a single spool holder that dries 24/7…
Keep drying your BVOH for longer I guess! Leave it be for another day or two. A 20% is super wet for the 55C temp it’s getting.
I have a full thread on how the new Bambu studio is much much different in its generated supports. Pretty much there’s a new “support transition layer” which is an extra interface layer and is uncontrollable. That’s one of the issues I’ve ran into, and I’m talking for single material supports, not dedicated support material.
All in all there’s big differences how supports are handles and generated now.
It’s definitely an optimization issue, more on the Bambu studio side, and yes it’s something that should worry you , you did not buy a tinker diy printer kit, nor you paid Bambus most expensive machine to set it up for them while wasting both your precious materials AND your time. Yes of course I did tinker to make it work, but to get there it involved a situation and process that is NOT what Bambu has come to be known for.
Additionally as of yesterday an issue with the tool head gantry arose, where the belts are rubbing against their rollers, indicating a not squared gantry. My machine within 7.5 days of printing has already shown excessive wear on the belts , to the point where the inner threads are showing. To my experience and from what I observe from the rest of my CoreXY machines, not only this creates premature wear and tear on the belts, but also leads to quality problems and Z issues.
This could very well be one of the factors , and even if not, it’s alarming for a machine of this caliber.
Edit: It appears that I have acquired a stalker. Dig more my little troll… thats all youre usefull for.