Solids fillet problem

[Tom Matuszak from McCann Technical]

We are looking for some help on a part that one of our students is generating. He is designing a steering wheel that will be cut from aluminum for his Senior Project at our school. We have worked hard over the last few hours trying to get something to work with no success. I have up-loaded the drawing to the solids folder of the ftp site. The file name is steering2.mc9.

 

We are trying to put a .100 fillet on the 3 cutouts in the wheel. We choose the correct edges. The problem we are having is that it fillets the inner ring all the way around the entire diameter. Kevin, a senior in high school, would be greatly appreciate any help from the wise people of this board.

Thanks,

Tom Matuszak

Machine Technology Instructor

McCann Technical School

North Adams, MA

[kamman25]

Tom, look at the file joesteering2.mc9 in the same folder. is this what you want?

[Thad]

Tom,

 

They must be one solid to fillet them. The center piece is a separate solid. I only have Demo on a very slow computer here right now, so that's all I can offer. Use Solids-Boolean-Add to join them.

 

Thad

[Leehound]

I uploaded STEERING2-leehound.mc9

 

It should be what you are looking for.

[Tom Matuszak from McCann Technical]

Thanks everyone.. Although I very rarely post, I always watch and read. There is a tremendous amount of talent here. Many of the things have greatly helped me to teach my students. I figured the problem was because there was two solids, I didnt know how to combine them.

leehound ,thad and kamman25....thanks! I have shown Kevin and he is ready to go!

PS...I showed him, deleted it and made him start from scratch...

 

Thanks again

Tom

[medaq]

Also if you have trouble doing a fillet you know is possible. You can draw the arc fillet, and close it. The sweep it along the path you want..

 

Jim

[Tom Matuszak from McCann Technical]

I am trying to join them using boolean. I click boolean, add. It prompts for target body and i choose inner ring. It then prompts for tool body and i select outer ring. I click done and i get an error (parasolid kernel interface error, boolean error. face imprinting operation failed)

 

Leehound how did you combine them?

 

Tom

[Thad]

I got the same error.

 

quote:

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PS...I showed him, deleted it and made him start from scratch...

---

That's the best way to learn.

 

Thad

[kamman25]

Try makeing your center hub .0005 bigger than it is. just create a new arc and rechain the geometry of that solid. solids like to overlape when you use boolean.

[Tom Matuszak from McCann Technical]

I had him go back and redraw extruding the inner diameter and 3 webs first, then adding the outer ring as a swept boss. I think we have it!

As far as the boolean problem..he went back to an earlier drawing that doesnt have radii in the corners where the webs meet the inner circle and it worked. He is now trying to figure out why that was causing the problem. It is nice to have students who are this into things.

 

He has to add the column support and has some other neat features. I will post it up here with some pictures of the finished product when he is done.

 

Tom