Help student create an Arc on Ellipse to Ogee Curve.

Recommended Posts

Hello,

I'm a student taking a CAD class.

The drawing I'm working on is basically of a wrench. An "S" curve wrench.

I used "Ellipses" to make the ends of the wrench and an "Ogee curve" to make the body of the wrench.

I need to make Arcs where the Ellipses meet the Ogee curve(s). Arcs with a radius of .25.

I don't know how to do this other than make R.25 circles out in space, then move them into place via eyeball, which isn't accurate.

If anyone can describe other ways to do this, I'd appreciate it.

The ellipses diameters: One is 1.25 minor and 1.63 major. The other is 1.38 minor 1.75 major.

Distance between Ellipses (width), from center to center is 4.12

Distance between Ellipses (height), from center to center is 2.00

The Ellipses are vertical.

Scale is 1:1 on a sheet size of 11 x 8 1/2 inches.

Share on other sites

I have to be honest, I can't picture in my mind what you mean, but 2 alternative methods for creating curves at junctions of other geometry that I can think of, would either be the fillet command with a radius of .25 or use the offset command with a distance of .25 on the ellipse and the curve and this should give you the center point for the circle. If those don't help maybe you could post a dwg or an image to show what you are wanting to do.

Share on other sites

• 4 months later...

Remember this trouble.

Create the arc using "tangent, tangent radius" to define position and size.

Share on other sites

Yeah the famous for over 30 years the "Fillet" command. One day Autodesk will fix it.

Join the conversation

You can post now and register later. If you have an account, sign in now to post with your account.
Note: Your post will require moderator approval before it will be visible.

Unfortunately, your content contains terms that we do not allow. Please edit your content to remove the highlighted words below.

×   Pasted as rich text.   Restore formatting

Only 75 emoji are allowed.