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Supports appearing mid-air.


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Posted · Supports appearing mid-air.

Hi all,


    Newbie to 3D printers, using a Creality Ender 3 V2. In the attached file below, I am having an issue where supports on the triangles openings are appearing mid-air (starting layer 40). I tried printing at .2mm quality on a .4mm nozzle and the supports just fall apart and the print cannot continue. I have tried a bunch of different settings along with adding a ton of supports but I was wondering if there is a way to add a connection so I don't have to have a ton of support material in the inside.  Any help would be greatly appreciate, thank you in advance. 

Base 1.stl

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    Posted · Supports appearing mid-air.

    I have no idea what you mean by "supports appearing in thin air".  Can you please post a Cura screenshot showing the problem?


    Also rather than attach STL files, it's better to attach a project file.  A project file will include your machine (printer) settings, your STL, the profile you used, the material profile you used, and the settings you chose to override.  That way we can open your project file, hit slice and see exactly what you see.


    To create a project file do "file" "save...".


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    Posted · Supports appearing mid-air.

    @gr5 - I think he means the tall vertical supports that are trying to get to the upper triangles.



    That is an extremely tough model to print.  The thin walls mean that there will be bridging on all the triangles that have a flat edge on top.  Those flat areas are on a curve.  With nothing to press against - the plastic will come out of the nozzle and stay in a straight line until it crosses the gap.  That will be true even with perfect supports as there has to be some gap or the supports become part of the print.  The thin walls mean that any support that gets built in the gap of a triangle will likely fall out and fail.

    I would suggest using "Normal" support "Touching Build Plate" and allow the bridges to form across the gaps on all the triangle features while supporting the convex bottom.  A couple of layers above the triangles the print will straighten itself out again and resume the curve.

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