Fillet radius problem?

[matt4]

Hi,

 

I am having a issue with fillet radius or something of that sort. The first image is what my drawing should look like.

 

 

The second is what mine looks like.

 

 

The area circled is the problem area. As you can see it appears the fillet radius is too large. However on my engineering drawing it shows only one dimension showing the outer radius to be 6 (nothing for inner radius's). Which mine is correctly set at for all three fillets. Am I assuming the dimensions correctly for the inner fillets?

 

Any suggestions to whats going wrong here?

 

Thanks,

[CarlB]

Without seeing the criteria we have no way to know.

My guess is the inner arc is concentric with the outer arc, so its radius is 6 minus the separation (offset). Which eyeballs to an inner radius about 2 or 3.

[matt4]

I would scan the drawing but my scanner is 60 miles away at the moment.

 

Thanks for the suggestion that the inner arc maybe concentric though.

[skipsophrenic]

Matt, is this that practice drawing towards the end of the 4353 course?

[matt4]

Nope, It isn't.

[JD Mather]

It appears that the inside radius (the smaller one) is a shell thickness (outside radius - shell thickness). Therefore if you were given a shell thickness the smaller radius does not need to be explicitely given. When in doubt always do a 3D model.

[AVITWeb]

Did you simply offset that curve or did you use fillet?

[Tankman]

Looks like you have the same radius on ALL.

 

Radius needs to be adjusted; i.e.: large, smaller, smallest.

They, the radii, need to be adjusted accordingly.

[mugshot]

maybe you should convert the inner line to be a polyline, radius and then offset so that you will ave an equal distance curve.