Fix Stuck Supports in Bambu Studio

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[DPrintStuff]

It was suggested that the tops fell off of the prints due to the flush volumes being too low. Here are some follow up shorts:
If you want to be sure there is no PETG left in the nozzle, 800mm^3 looks like the answer.
(edit: added link for 700, 800 and 900 testing)

[im.empimp]

To avoid breaking off the top of the PETG supported cubes, there is probably still just enough PETG mixed into the PLA, so that the PLA layers aren't adhering as much as they should. To fix this, you may need to increase the "Flushing volumes" for "from" yellow "to" green.
"Flushing volumes" is in the grey bar just above the filaments list.

[its_just_that_simple]

Your videos are seriously so helpful! I'm so tired of having to ask questions on the Bambu Labs reddit for no one to respond to my posts. Thank you for existing 😭

[legacyofbob]

Thanks for doing all this testing! Love seeing the follow-up shorts with the FV testing. I've been wanting to try this for a while and it's super helpful that you've taken the guess work out of the settings for me.

[darthtater]

Great video. I’ve used PETG as a support layer and have experienced “stickiness” to pla. Glad to see this is normal.

[JensNeumann-tf]

Thank you so much! Your video is quick and on point and helped me.
I have printed a part with PETG Translucent, where i were not able to remove the support, then the part got damaged.
I followed your advice and Z Top Offset was changed from 0.16 to 0.275.
With this setting, the print were perfect and the support very easy to remove.
The quality of the supported areas were very good.

[teabagNBG]

i always use 0, 6 top interface spacing, also 0, 3 on top Z distance! mostly works out

[kukoorooza]

This video helped me a bunch! Have a print that I will be doing a lot of and it has some nasty supports, this will hep greatly. Thank you!

[S.A.S.H.]

I have been wondering about the PETG support idea ever since I got my X1-Carbon a month or so ago. This video has convinced me to give it a try. Thanks!

[NickBaysingar]

I have had pretty good success with Polymaker's breakaway support filament for PLA. Not the cheapest stuff out there, but Bambu Lab has a filament profile for it and it automatically adjusts some settings when you set the breakaway filament as the interface material. So far it has made removing supports a much easier and cleaner process for me, but I only use it on more complex prints since doing multi-color prints is quite wasteful with the nozzle purging and priming.

They also make water dissolving support filament, which is pretty cool. But I have read that it's almost impossible to avoid it getting mixed in to the PLA when printing, which can lead to durability issues with your part. It's also like $60 per spool.

[Mogu]

I really REALLY hope Bambu comes out with a dual hotend machine

[robertparis]

i really wish there was a tool changer or dual extruder conversion for the bambu printers. dedicated support layers like this would be a game changer if they didn't require a purge tower.

[michaels]

Very impressive work and presentation.

[ludovic]

It brokers when using PETG interface because you didn’t purge enough. So your top layers are printed with a mix of PETG/PLA which reduces the layer adhesion.

[CraftyEnelrad]

Great video. I learned a lot about supports. Thank you. I use a Cricut weeding tool to get into those hard to reach places. It's small enough to dig into corners for lifting supports. It's a hardy tool and, imho, better than tweezers which have a tendency to bend under stress. I have found them at the dollar store in the craft section.

[DaveEtchells]

Super useful video! I’ve been interested in trying out PETG interface layers but didn’t want the hassle of figuring out the settings myself 😁👍

[lymnjuice]

Another major thing you can do is print supports 45 degrees rotated from your normal part, it causes the layers to bind less strongly and much easier to remove.

[GlerpidyGlarson]

Orca slicer - organic tree support - win

Also if you fine-tune the settings correctly you can make it so it just pops right off and uses the absolutely least amount of filament needed. Give it a shot

[mytuberforyou]

The addition of the PETG is requiring a filament change and creating a cold break when the PLA resumes, in turn creating a fault line that breaks easily in the PLA part.

[traxendregames]

very good video thank you a lot. do you think that for small parts like mini figurines or space ship using PETG is worth it? i have issue to remove supports and that ruine my prints. thanks