You’re trying to find the radius dimension? From your screen shot it doesn’t look like an arc. That is it doesn’t look like it is part of a circle. For an arc of unknown radius you can use the Protractor tool to place guidelines perpendicular edge segments at the segment midpoints. Then measure from the intersection of the guides to a vertex on the arc. This wouldn’t be useful for curves that are not arcs, though. On the other hand, curves that aren’t arcs don’t have radii.
Here’s an example using a curve that is not an arc. The guides are all placed at 90° to the segments and throughthe midpoints. No radius since there’s no common center.
That doesn’t look like it is part of a circle, so it won’t have a single radius
Thats why I guess I was having such a hard time. Maybe I can use a 30deg or more depending on how thin I want the front piece to be. Its a hold down clamp to use on cnc machines, I think its called a toe clamp. Appreciate the help as usual DaveR you mentioed to me some years ago about doing certain things in CAD so I had to start learning CAD.
You’re quite welcome.
What is it that is driving the shape of that curve? Is that exact shape critical? What would you do with the radius if there was a radius to find? Maybe there’s a different way to approach this thing.
From what I see in your screen shot, I would be inclined to redraw the entire thing from scratch to make a suitable curve.
Maybe it is a toe clamp but I’m not seeing how it would work unless there’s some place for the bolt that isn’t shown.
