Bambu studio pointless supports

Bambu Lab Software
1

I just created a model in Onshape and Bambu Studio created two spindly little supports that went the full height of the model to support two little nubs at the top. The supports failed during the print as they were so long and thin but the print succeeded as it was able to re-establish the top of each support as they ran close to a vertical face. It strikes me that the bottom of each support was essentially redundant. See pic.

IMG_2506
IMG_25061701×3252 1.1 MB

My question is, is there a way to get Bambu studio to branch a support off an appropriate vertical face just below the item to be supported whilst keeping within sheer angle limits rather than wasting material going all the way back to the base plate?

2

There should be. Can you provide the .3mf file?

3

Hi Jon.

3mf file attached.

Dave

Vertical Profile - Part 1.3mf (160.4 KB)

4

From my experience none of the areas of this model require support so I would suggest just disabling it.

image
image758×554 87 KB

If you would like to test this area to verify it prints okay without support. Drop the model into the bed so it prints from just below this area.

image
image743×501 31.6 KB

2 Likes
5

+1 on no supports needed on that one.

But if you did, I would suggest trying to manually paint some larger supports (which may not work with straight up vertical supports), Tree supports, or modeled in supports (most likely what’s needed).

I’m sure there are better ways I didn’t touch on I’m curious to see if anyone else has tips.

6

Thanks both. I’ll also wait to see if anybody else has any other suggestions but based on my printer experience it does seem that there could be other alternatives for Bambu to explore with their support modelling which could be quicker, use less material and less likely to fail (one for the devs if they are listening?).

7

For my old printer and slicer I had the option to create tree supports and from there to modify them.
For a model like yours it would have been a flimsy thin tree as well, but I would have been able to create a branch to the vertical wall of the support, or two.
After that the bottom of the main branch could be deleted.
Was always a hit and miss as the slicer obviously tried to preserve the vertical wall without flaws.

I since found a workaround for very tall models that need supports high up the slicer can’t get right.
Below the support area I create and angled platform to hold the support.
Intentionally placed with a slight gap to the vertical wall.
Between 0.04 and 0.1 works depending on how you set the gap detection.
The first layer of this platform joins the model.
Quite easy to clean up and does the trick in terms of saving a lot of filament and print time.
Requires the right software and being able to modify a model …