# Thread: Dimensioning a circle in isometric view

1. ## Filleting

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I am having a problem filleting two circles. the drawing was done using 2D polyline per instructions from worldclass.com wesite. I have attached a copy of the drawing, and the drawing has two red arrows pointing to the circles in question. The radius of the fillet is supposed to be .5".

Solids Challenge OneA.jpg

Tony

2. Why not do that as 3D rather than fool with wireframe?

I once took an idiot exam that required that I do something like this as wireframe.
I simply did as 3D and exploded to 2D wireframe.
Increased my income by several thousand dollars by passing the "competency" exam.
The proctor never new the difference.

3. Originally Posted by Tony D
I am having a problem filleting two circles. the drawing was done using 2D polyline per instructions from worldclass.com wesite. I have attached a copy of the drawing, and the drawing has two red arrows pointing to the circles in question. The radius of the fillet is supposed to be .5".

Attachment 29633

Tony
Something doesn't look quite right. Are you trying to fillet between the 2 circles? If so, why? This appears to be some sort of housing with a bushing pressed into it. You have 3 concentric circles, so I presume the small one in the center is a hole, the next one is the outer edge of the part with the hole in it, and the outer most circle is the edge of the housing. See the illustration below.
tony.PNG

Or are you trying to fillet the edges like this?
tony2.PNG

4. scan0001.pdfTo Jack_O'neill,

Originally Posted by Jack_O'neill
Something doesn't look quite right. Are you trying to fillet between the 2 circles? If so, why?
See the attached copy of the drawing (note where the two red arrows are pointing to), it may help you to know what I am trying to convey, below:

Solids Challenge One B.jpg

Tony

5. To: JD Mather,

Originally Posted by JD Mather
Why not do that as 3D rather than fool with wireframe?
To answer your question the Instructor wants us to do the drawing using polylines. He has never mentioned anything about doing the drawing in 3D. Is it much more simpler to do it in 3D?

Tony

6. Ah, I see. That makes more sense. You should have mentioned that you were trying to draw a weld. In the images below, you'll see solid models, a wire frame view and a hidden view. I gave you the front, back and a cross section. On the back view, I pulled the round part up half way in the plate to have something to fillet to. If it needs to be flush, we'll have to do some more work with the shape of the inserted piece, but I think you can probably figure that out. If not, give a yell.

tony3.jpg
tony4.jpg
tony5.jpg

7. Originally Posted by Tony D
To: JD Mather,

To answer your question the Instructor wants us to do the drawing using polylines. He has never mentioned anything about doing the drawing in 3D. Is it much more simpler to do it in 3D?

Tony
Not that I would speak for JD, but absofrackinlutely! The images you see in my previous post took about 5 minutes to create.

8. To: Jack_O'neill,

Here is a copy of the drawing from the PDF document. You can see where he wants the fillet.
Hub Plate A.jpg

9. Ah yes, that makes much more sense. If I may, you have a small error in your drawing according to this. Notice the small hole in the center? You have it drawn as coming all the way to the end of the large round bit. It actually only penetrates the square plate. That's why you were having such a hard time figuring out what to do and it threw my drawing off as well. The red bit in those last images is not there. What want it to look like is this:
tony6.jpg

Your instructor is making you do this the hard way huh? Even the page you uploaded says something about using this "solid". I wonder why he's going to such lengths.

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The 1/2" Fillet (the T is pronounced) weld should be done with chamfer not a fillet.

I looked closer and see that chamfer is called out for all of the holes as well.

What course/school is this? I will move this to the Student Project Questions sub-forum.

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