Stress collision cylinder cube

3D Design Volume Model
1

Hello

I have an assembly with 2 parts which roughly have the shape of a cylinder and a cube. I don't necessarily want to set a constraint between these parts, but I just want them to stay placed so that the cylinder doesn't fit into the cube.

If I place a constraint with a distance of 0 between the face of the cylinder and the cube, I will be forced to select a particular face of the cube, and so if later I move the cylinder around the cube or rotate the cube on itself, the constraint will no longer work and I will have to change the face of the selected cube...

On top of that, I don't necessarily want them to be glued, I just don't want it to collide, so I would need a distance constraint greater than 0 and not equal to 0.

Would there be a way to simply tell 2 pieces not to touch each other? without necessarily setting a distance for them?

2

Hello

At first glance it looks like collision detection

http://help.solidworks.com/2016/French/SolidWorks/sldworks/t_Collision_Detection_SWassy.htm

But it's only going to work for manual movement. If the displacement comes from a modification of the constraints, I have no solution

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3

 SW is a customizable software

so if you want to put a component in an assembly

it will have to create constraints 

Nothing prevents you from creating constraints via the axis of the cylinder  on planes

So create 3 planes and it's these three planes that will be the ref of this cylinder

 

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4

Ok, well that's what I had already seen elsewhere, it doesn't suit me too much, too bad.

 

Otherwise, still within the constraints, is it possible to center one room in the center of another?

I have a rail with a carriage, and a ball screw with its nut, I would like to make the part that will sandwich the carriage and the nut, but since the nut is wider than I am the carriage, I would like the carriage to be centered in relation to the flat face of the nut collar .

Can I do this without using the distance constraint and having to put an approximate measurement?

5

For the first case, you also have the limit distance constraints in the advanced constraints.

 

For the second point, you can create a middle plane by selecting the 2 opposite sides of your cart. You will then have to put a conincidence between this plane and the axis or plane passing through the center of the nut.

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6

post a screenshot of your problem

for a better understanding of the thing

Thank you

@+

7

You can go into the advanced constraints and then choose "slide" or "symmetrical" according to your needs

 

With slide, you choose two sides of each piece (or two sides of a cube and the face of a tube) and then it centers.

 

With symmetrical, you need a plane of symmetry (3D face or plane) and two sides of the other part

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