Partial bevel/chamfer of an extruded profile

[autodesk_sbc]

Hi, I'm going to absolutely make a mess trying to describe what I'm trying to do, so apologies up front. I'm a Fusion (and general CAD) n00b trying to learn the ropes; I come from a visual effects background and am fluent in Houdini, so I am mocking up an idea for something that I want to make, but I have no idea how to make it in Fusion. 

I have an extruded sketch, it looks something like this:

I want to take this extruded rail and make a box from it; like so:

My problem is that the rails collide/intersect at the corners:

This is no good! So I want to - here is the part where I don't know what the proper CAD word is for what I want to do - "bevel" the rails so that they meet nicely, like so:

If I view just one of the rails, it looks like this:

Is there a correct term for this thing that I'm doing? And, how would I do something like this in Fusion? I've tried exploring the chamfer tool (but it seems to want to work on an edge, and all I have is a corner at the tips of the rails), and the Draft tool (which doesn't quite seem like what I want).

Thank you!

[g-andresen]

Hi,

please share the file for reply

File > export > save as f3d on local drive >attach to post

günther

[wersy]

Such profiles are not usually mitered. There are special corner connectors for this.
Did you design the profiles yourself?

If not, I don't think it is intended to tilt the profiles at the top and bottom.

[davebYYPCU]

Probably called a 3 way Mitre. (jount)

Might help....

[autodesk_sbc · Accepted solution]

After some clumsy banging around and learning, I think I got this figured out well enough for my needs. In case it's helpful to anyone else:

I was able to make the mitres (thanks for that word, that's a helpful one to know) through the use of construction planes that were aligned to faces of my rails. These rails are ones I'm designing, they are not an off-the-shelf part, and I need the corners to be open because I need to run wires through the rails, and want access to help with the threading. What I ended up with looks like this:

The rails are held together with corner fasteners (also self-designed) like so:

I think the useful lessons I learned were 1) not to be bashful about using construction planes + sketches to create tools exactly where I need them, and 2) using the Move tool to its full potential to align parts with one another via point-to-point movement to check fitting. I also only figured out after the fact that creating each rail as its own Component makes assembly much nicer than trying to move around Bodies. 

 

[davebYYPCU]

 2) using the Move tool to its full potential 

Not a good idea at all, 

Component and Joints are far more efficient.

I made one body and patterned the other 2 - no Move Tool at all.

Might help...

[g-andresen]

Hi,

follow @davebYYPCU 's recommendation and realize the connections of the profiles with 2 joints.
I show one way in the screencast.

günther