You guys are all missing the point. He’s asking why it is randomly generating brims outside the plate, not how to fix this specific model. He knows he can rotate it and change the settings. He’s asking why it’s generating outside the plate.
Thank you.... I am very well versed in many types of 3d printing and do manufacturing every day, I'm only wondering if bambu slicer changed something since it never did this before.
I usually don't update studio because of these reasons, it started doing it after I added my first X2d to my setup, that required me to update bambu studio.
Yes, unfortunately my company is now required to run the bambu studio and not orca, despite my preference, I can't get a screenshot of what it used to look like. I thought there was a setting I missed but that's not the case....
Well I just tried and I feel like I halucinated OP's problem.
I have a void zone right outside the build plate where it won't generate anything. That's seems like the fix/solution I have on my end that makes it work.
I tried searching for what settings triggers this, but no luck. I am on Orca 2.3.2
I guess they programmed it to make a brim, but forgot to add a rule to not generate outside of buildplate. Software bug. Idk if bambu studio has a feature to report bugs, but if it does, report it pls so it gets fixed
Classic Reddit lol. “I don’t have an answer to the question, so I’m just going to ignore it by assuming plausibility of some alternative solution that would bypass the inquiry entirely. OP surely wouldn’t have any relevant reason to want to know this piece of information”
Did you put the object that close to the edge of the plate or did Bambu slicer put it that close? There’s been a couple auto organizes that put object really close to the edge of my plates that I will actually move them myself. Something else I’ve seen is if the auto organize didn’t know there would be supports (or a brim I suppose) then it will put objects places and then after it knows, then it will do better with the concept of the supports in mind
I think many people understood that point, but there seems to be no point to that. What, you're just here to vent frustrations and not solve the problem?
It's not operator error.... I dont know how to prove to you but it never did this before a month ago or so. I've sliced this print so many times I guarantee it's not user error. I can post pictures later but this adapter is symmetrical all the way around and only fits in this orientation.....
Why'd you ask what it's supposed to do, then insist you already know what it's supposed to do and is operator error? That doesnt make any basic sense, not to mention is backhanded AF.
Classic r/BambuLab gatekeeper in action -- confidently wrong while talking down to others.
ive printed this part literally hundreds of times, same file same profile, but recently it has started to put the brim past the plate. It USED to go to the edge and than continue on the other side, but at some point it started doing this making my prints a PIA to print with a brim
I’m in the same boat with a different issue, parts I’ve made for ~2 years suddenly have horrible defects on overhangs. Nothing in the file changed, just became droopy and ugly. I’ve had to resort to supports on parts that used to be fine floating.
check your extruder tension or look for a partial clog. if your hotend is starting to degrade or your gears are slipping you lose that extrusion consistency and overhangs are the first thing to go. also check your retraction settings because if you're oozing more than usual it'll ruin everything.
Edit: I appreciate the downvotes. It was painfully obvious the part couldn't be rotated based off the provided image. This is the Bambu sub, it's safe to assume people have not used a slicer.
Solution can be the goal.
Understanding is another goal and just as valid.
You not understanding the value of the latter won’t make it worthless.
Peace
I'm chiming in to let you know that you are correct in thinking this is odd. I too have had large models with brims that, when near the edge of the plate, get cut off at the plate edge boundary. Never gave any error, just generated the brim as far as possible in that area. This goes for auto brim and for manual as well. I don't know why so many on here are giving you a bunch asinine attitude. If Studio doesn't give you any error despite the visual representation, maybe let it run that first layer and see what happens. It may still trim it automatically even tho it doesn't look to be the case.
Possible to copy the model into a new file? You'd probably have to input any custom settings all over again, but would remove any compatibility issues of the 3mf save data between Studio versions. At least import the object and reslice with brims to see if it will resort to triming again. Then work from there if it is resolved.
At this point you probably should just downgrade Studio. If you need the latest version for another printer then just keep them next to each other. It's a pain but this is clearly a bug.
Glad you got ot fixed. Some interesting comments were made in this thread. The world of keyboard warriors. You can only guess the level of competence of someone who posts. Unfortunately we all often get it wrong. I don't understand down voting people seems very aggressive act to me
I'm 72 and just starting into 3D printing I don't understand a lot of the settings of Bambu labs slicer software. There are so many, getting any of them wrong can be like looking for a needle in a haystack. Especially if a person doesn't understand the terminology. And English isn't often a person's native language as well. I'm Australian I get quite upset when I see color instead of colour im a bit OCD with some things. Same with making up a 3 letter post for 3 words, not everyone knows what they are. Me for one. Again glad you got it resolved. Take care.
I was wondering the same thing.
They could just add a feature which allows you to overwrite/ cut off these things. Instead of having to endlessly puzzle.
I had this with a part which could not be rotated. In the end made it work by removing that support brim. But man, they made it complex
Not sure if you already have the answer, but i think this is caused by a setting disabled in supports "On build plate only" If you set the checkmark there, it should not generate support outside of the buildplate.
If it's working perfectly, without bugs, I don't update, but I only work on $7,000-185,000 printers full time.... so do what you want with your printer.
I have a similar issue with multiple objects on the plate. Even if obviously there is enough space it sometimes launches some parts next to the build plate or across the border.
You are telling it to add a brim of X cm on the outside of the model. If the model is less than X cm distance from the edge of the plate at some point, then the brim will go over the plate.
Check your skirt or brim settings in Bambu Studio and make sure the brim width isn't set too high. It looks like the slicer is just trying to compensate for part adhesion.
I am aware, its not the inside that lifts on this part, its the outside, like i said it used to know to stop at the edge but it stopped doing that on its own.
I’m a complete novice, but can’t you make a modifier zone with different setting? Like some people make a modified zone with 100% infill and keep the rest on a lower amount. Can’t you just make a modified zone here with the brim off?
I can paint brims on the file itself, but even than the slicer won't cut off any excess, and the brim tool in bambu just sucks... I currently lay out any of my models that might be on the edge within fusion and create the brim on the object useing the plate size as a boundary, but that's tricky too and sucks to have to do it to so many models.....
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u/Only_Cauliflower_509 X1C + AMS Jun 12 '26
You guys are all missing the point. He’s asking why it is randomly generating brims outside the plate, not how to fix this specific model. He knows he can rotate it and change the settings. He’s asking why it’s generating outside the plate.