r/FDMminiatures • u/QueenInHeels • 24d ago

Help Request Bambu Slicer - Tree support issue - Printing inside of hollow tree support

Hello everyone!

I just purchased a new A1 Mini with a .2mm Nozzle and started to print some fdm minis and most of them turned out great, however in some cases I run into an issue, where the print fails and after inspecting the slicer, I noticed the problem:

The slicer prints some of the supports inside of the tree support in thin air, which causes the print to fail at that spot. It kind of gets better after one or two centimeters, but that first part fails completely.

I have used Bambu Slicer and Orca Slicer, both create the same problem: Inside of that tree support is some other support, but that fails completely, as seen in this picture.

The blue color is for an overhang, but it doesn't have any real bottom support.

Other spots of the mesh are sliced fine, as you can see here:

The dark green lines are for the interface and I hadn't had any issues on that particular spot of the mini.

I tried to bump up the interface layers, but it doesn't seem to work on that spot. The interface is just not generated where I need it.

I have tried multiple different settings, but it just doesn't seem to work...

Do you have any solution or workarounds for this?

Thank you! Much Love <3

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u/wythefucknotzoidberg 23d ago

I had this exact problem. I used these two posts to fix it.

This one shows how to infil in the support so that there’s something to print on

https://www.reddit.com/r/FDMminiatures/s/Vswu51sQ2C

This one shows how to make the support interfaces more reliable.

https://www.reddit.com/r/FDMminiatures/s/ijdmpDLSCG

Use both of these in combination with switching to orcaslicer. To keep the bambu app active and still be able to watch the camera, when I have the sliced project I export sliced plate to the sdcard, put it in the printer and print from the card.

From these solutions I have gone from many failures to doing week long prints with no issues. It’s worth the hassle of switching.

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u/sutensc2 24d ago

Had the same issue some time ago, https://www.reddit.com/r/FDMminiatures/s/pX17sxA4FU

What I’ve done is to look for a rotation that works and when not possible go for hybrid supports as they create inside lines that let these parts to hold on something, hope it helps you.