Guitar neck

[Docskyhawk]

I am having trouble getting the radius on the back of a guitar neck done. I have tried creating the 2d shape and extruding it but then I have to cut down the different widths at each end but then the radius isn't correct. I have tried fillet but this is the best I have gotten from it:

View attachment 957View attachment 958

How can I get a smooth radius on a piece that is 2" wide on one end and 1.5" on the other as an example?

 

[Docskyhawk]

I am having trouble getting the radius on the back of a guitar neck done. I have tried creating the 2d shape and extruding it but then I have to cut down the different widths at each end but then the radius isn't correct. I have tried fillet but this is the best I have gotten from it:

View attachment 957View attachment 958

How can I get a smooth radius on a piece that is 2" wide on one end and 1.5" on the other as an example?

Quick followup: I was able to get very close with a variable fillet but it is taking material off of the flat side's width. Is there anyway to keep that fixed so that the fillet does not cut it?

 

[dpryor]

Is this what you are looking for? Try drawing a sketch at each end and lofting between them. Note the small end is a radius and large end is half of an ellipse.

View attachment 960View attachment 961

 

[Docskyhawk]

Yes! I have not really dug into this yet but how do you get the smoother curves instead of the multiple straight lines?

 

[dpryor]

View attachment 962
Just lofted between two sketches.
I can email you the file and let you change the dimensions to what you need.

 

[Docskyhawk]

View attachment 962
Just lofted between two sketches.
I can email you the file and let you change the dimensions to what you need.

I tried to loft cut out of a "block" and it works great for cutting the shape out of the center but how do you do the opposite and cut away around the loft?

 

[Docskyhawk]

Update: I have been able to figure out the loft cut thank you!

View attachment 963