Cura Generating Supports Beside Model

[Adventurehill1 0]

I am having issues with Cura generating supports where I don't want them on this model. You can see the support going up the side. I'm wondering if this is a Cura problem or a model problem.

CalibrationCubeSupport.3mf

[gr5 2,334]

Cura is kind of dumb.  It sees that top of the X and thinks it needs support.  But it doesn't.

 

Cura has lots of features to fix this.  In the case of this exact issue, I'd use a feature called "support blockers".  But put the blocker up near the top of the X - where the surface is that cura thinks needs support.  Don't put the blocker where the support is that you want to take away.

 

In PREPARE mode, click the model, then on the left there is a tool you click called "support blocker".  Then click near the top of the X in your model.  A cube will appear.  Click the cube so only the cube is slected, then switch to the scale tool on the left side (second too from top?).  Now scale the "blocking" cube to include the top surfaces of the X.  You can select the move tool to move the cube around.  You can rotate the cube.  Etc.  It's possible to load an STL to be the support blocker - you don't have to use a cube but it will do for your purposes.

 

Slice again.

[GregValiant 1,492]

@gr5 I don't think the OP has to go through that for this project.  Just set "Support Horizontal Expansion" to 0.0 and turn off "Use Towers".

Edited March 13, 2024 by GregValiant

[gr5 2,334]

Yes.  I think the support blocker is a good one because sometimes you do need it.