How to extrude on an ARC

[michael_ray_neal]

Having trouble extruding this simple design.  Notice that I have the basic shape (sketch #4) that has an arc on both ends.  I then what to extrude the triangle piece (sketch #10) across the the whole of sketch #4 but when I do, it of course  it extrudes on a straight line.  I have tried to work with creating a Plane along a path but that didn't work.  Can you please provide some guidance on how to get sketch #10 to extrude and keep the shape of sketch #4.

[jhackney1972 · Accepted solution]

I hope I am understanding what you desire.  Model is attached.  Please let me know if you need further help, if not, please click on the "Accept Solution" icon on my post.

[michael_ray_neal]

Yes and No.  I got this far with Sweep but the front of the wedge (lack of better word) has a gap that needs to be solid.  This is meant to be a wedge that a camera mount sits on and points at a angle towards the ground.  The problem is the flat piece of steel I plan on placing the wedge on has an arc in the back and the front causing the typical extrude not to work well (extrudes in a straight line and doesn't follow the arc. Long story short, the back looks fine but the from of the wedge  should be a sharp point.

[Drewpan · Accepted solution]

Hi,

What you want here is a sweep instead of extrude. Extrude will create a straight shape like pushing material through

a hole. Sweep will cause the shape to move along the curved "rails" instead. You may also need a third rail to get the

top of the triangle where you want it.

Cheers

Andrew

[michael_ray_neal]

I agree but can't get it to work.  Anyway you can use my drawing to fix it the right way and I can reverse engineer it to see how you did it.  Im pretty good with Fusion but my brain is fried...lol

[jhackney1972 · Accepted solution]

I am not sure what is the back or the front, a identifying screen capture would help.  I took another guess and I am submitting the model.  Take a look.

[johnsonshiue · Accepted solution]

Hi! Is this close to what you had in mind?

Many thanks!

[evanp4509U4JZ]

Like this?

[jhackney1972]

This is my guess as to the shape he wants, even if it is not, I wanted to say I like your method.  Clean and quick!

[jhackney1972 · Accepted solution]

Now that you have numerous proposed solutions to the shape you wanted, it would be nice for YOU to respond and indicate two things.  Did someone get your desired shape and if so, it would be nice to acknowledge that person.  Feedback to the Forum users that answer questions is important to them and I am one of them.  So take a moment and let all know if the shape is what you desire and tell the individual you appreciate their efforts by selecting the "Accept Solution" icon on their post.

[michael_ray_neal]

Writing for the whole thread to see as Im normally fast at my response but I fell and hurt my back and it's been a few days trying to get back to being able to walk without screaming profanities.  I appreciate everyones response as this group has always been very helpful.  This being said, I am going to redesign the major component thus not having the arc in it as most of you all have shown me that it isn't going to work the way I wanted it to.  Long story short it that the wedge (lack of a better word) without the arc works perfectly but when we try and arc the front of the wedge, and I place it flat on the arced piece of table edge, it should be pointed and flat laying on the table and the arc should just flow the edge of the table.  Most of you guys are not only bring the wedge to a point, but are curving the bottom of the wedge which should be flat across.  If this makes since I would love to know how this is done as Ive racked my brain with now good results.

[laughingcreek · Accepted solution]

maybe you could sketch a picture of what you actually want.  

[michael_ray_neal]

ok, maybe this helps a bit....Keep the laughing to a minimum. Notice the front of the wedge is pointed but on an arc.  I need this and every time someone tries to do it it arcs the bottom of the wedge and if the wedge is laid flat like the picture then there is a gap under the wedge.

Attaching the project file so you can see that I have the design without the arc but would rater have the design with the arc on the front and back.