background-model. SLDPRT (77.1 KB)
Hello
What exactly is the problem?
Please put a photo or STEP file.
On which machine, with which filament?
Hello, I would like to 3D print this part that I made on Solidworks with Ultimaker 3. For this I downloaded the part in STL. But the software doesn't consider my part. The software does not add support. And refuses to print. I think he sees my piece as a closed surface and not as a solid. I tried with 0.1mm and 0.06mm.

Hello @Mattéo_Le_Moignne
I don't do 3D printing, from experience and often with WWTP I end up with surfaces, which have a lot of problems.
Check your tree structure to see if it's a body or a surface (see below)
This is a surface

If it's a surface, add thickness to it with the appropriate function. Or delete and redraw the part, create a block of the profile that you reinject into a sketch.
Good luck
print it " vertically, curvature on the tray " can be, no need for supports
Hello
I just saw your part and am not up to date on the 3D printing technique
But without support it holds? In this position there will be no problem of balance?
Hi exporting in STL it works very well
fond-maquette.zip (10.9 KB)
You can print it without a support but I would add a border

So maybe?

Indeed there is less material and it's stable
What material and thickness of this part?, personally with my printer I print - nozzle function and configuration - up to 0.1mm, a sheet ...
Also, depending on " the slope, the angle ", " it " can print without support, sometimes it's very convenient!!
