Prevent auto-merge of shapes?


I’m new to 3D modelling, so please excuse, if my question is stupid.

I watched all the tutorial videos now and think I understood everything. But I have a really hard time to figure out when Shapr3D merges shapes automatically together.

I create all my sketches like in the tutorial videos, then I create my first shape, rename the group, create and activate a new group (like mentioned in one of the tutorial videos), but then, if I create my second shape (which I create to substract it from the first one) shapr3d shows me “calculating” and if finished I have not two objects in two groups, but one in one group. So how to prevent this behaviour? Because I need two objects to subtract them from each other.

Thank you very much!



Hi Alex,

Can you post a video / screenshot of what you are trying to do?

Would be easier to understand what the problem is.


Tap on the label that shows the height of the extrusion. Then select the appropriate method from the 4 options on the top (fuse, cut, section, new object).

Thank you very much. That was exactly what I was looking for! :sunglasses:

Now I have another question: How can I find the reason, why an “Intersect” throws an “operation failed”?

A number of things can cause the intersection operation to fail. Please post some screenshots/videos or send me the workspace so I can take a look at it!