u/UndergroundBM

I recently made a post similar to this and got a lot of feedback yet nothing seemed to truly work but I at least think the culprit is the prime tower for the most part and it seems more like curling or dragging of the interface material (still curling problems on the model itself). I did lower stuff like External Bridge speed and support interface speed A LOT as well as really expanding the prime tower to MUCH larger volumes, widths, lower speeds, etc. Currently the settings for Prime Tower are rectangle with 100% spacing but I also used Rib with default 120% spacing and that failed too.

So I recently somehow probably by luck got a decent print with similar settings on a different model but very similar (it's an organically shaped mushroom cap, uneven rounded bumpy rim edges and all that) but I found I really like the resulting smoothness and look of using Bambu's Support for PLA/PETG (as opposed to just "for PLA") but for both of those I'm still having a terrible time printing it.
It keeps seemingly curling up even after reducing fan speeds to max 30% and even lowering fan speeds of the pla matte material I'm using to reduce the cooling of the surrounding interface material.

Adding my snapmaker orca settings for the 2 filaments (bambu pla matte and bambu support for pla/petg) as well as speed, support, and multimaterial tab settings.

What confuses me is my Bambu A1 prints this and similar prints flawlessly with stock settings, full speed, default cooling, all that, I tested multiple times recreating / importing the exact same project and all settings (every single tab of filament settings and print job settings).

What's frustrating is at this point my speed settings are so slow to accomodate for this that for a single color print (with interface material still being the 2nd material) the A1 is significantly faster, obviously wasting more filament but it's kinda ridiculous.

I really appreciate any help, I have been battling this for almost 2 weeks now.

Requesting any help to fix this issue, or seeing if I'm the only one with it. Sorry for the long wall of text.

So I have had nothing but trouble printing support material or petg as support interface. I am preparing to open my Etsy shop with 3d prints I modeled and made so I have been printing like crazy trying to finalize my prints so I can get flawless prints but have had to keep pushing it back because no matter what I CANNOT get support material as interface to print correctly.

I have spent every waking moment this past week on just trying to figure this out. I have 3 filaments I should ideally be able to use as interface material. Bambu Support for PLA, Bambu Support for PLA/PETG, and Bambu PETG Translucent. I have tried every setting possible, dozens of reddit posts claiming the perfect interface settings, I tried seeing if chatgpt could give me options to try and have tried them all, and every print I do, the support interface ends up dragging something or rising up or oozing or whatever it does and I end up with support material everywhere on the build plate. Have not had a single good print.

The funny part is I have tried multiple times printing the EXACT SAME file on my Bambu A1 with ams lite and have had perfect prints, but of course the A1 takes 2x longer and wastes much more material (same object, same orientation, size, all that and the EXACT SAME settings, at least applicable ones) with all 3 interface materials, I was surprised the petg translucent worked beautifully on my A1, it was the blue cap, but notice in my 2nd photo the U1 failed on one of the first layers, that failed print wasn't even as bad compared to my other prints but still its like the translucent petg bunched up or dragged. The first photo (orange and yellow object) has Bambu support for pla, which should be the most ideal and easy-to-work-with but even that fails. And yes, I have made sure the filament profiles were the same as Bambu.

The only things I can think of why the Bambu prints perfectly is:

1. because of its longer time between layer swaps

or 2) Perhaps support interface material favors bed slingers rather than violent z-hopping beds?

I have tried increasing the prime tower volume (all the way up to 90 mm^3/s), slowing down both interface and prime tower speed for the support material (down to 20-30 mm/s), made sure my wipe tower is the PLA material, tried rectilinear and rectilinear grid interface/base patterns, adding raft layers so interface isn't on the plate, different interface temperatures, max volumetric speed, and more.

That said, I do sometimes have prints that "finish" on the U1 but these are usually having errors/fails mid-print and it "looks" good so I just continue it or there is spaghetti detected on the plate but good to continue printing but this leads to broken material inside the print so there is a lot of broken loose internal filament that shakes loudly when moving the 3d print in hand.

Has anyone else had problems with this? I exhausted all my resources.

I used the Memory Guardian's front metal chestplate golden design as reference for the back since we never actually see the back of Memory Monk's hood.

27 hr print on Snapmaker U1 since I cannot hand-paint for my life.

Printed in crazy 60% humidity conditions so the print isn't ideal Dx

But I used Fiberology's FiberSatin green which, if conditions were better, looks amazing for fabric looking stuff.

I think this is one of the newer ProtoPasta filaments and I couldn't find any examples of the filament anywhere other than on the official ProtoPasta site, so I ai-generated 2 pairs of jeans (spent 2+ hours editing, refining until I got poses and realism to my liking) and tried the filament. Looks preeetty good imo.

Printed on Snapmaker U1, 0.4mm nozzle at 0.08 "high quality" layer height setting, used generic PLA profile, will have to see how it changes if i up or lower the temperature.

If someone has more experience with printing this specific filament or HTPLA for possible better results or any tips I'd appreciate it.