Complicated angle

[[SH...]]

My whatsapp friend asked how to check this angle?. It is a taper circular profile . How can I do it with curve and without curve. I don't know he has curve.angle 16 degree want to check.

IMG-20211203-WA0000.jpgIMG-20211203-WA0001.jpg

[[Ma...]]

With curve it can be really simple - just calculate angle from curve length and delta Z from start to end point.

I am strugling with scanning path without curve - he can play with really big cylinder to make helix path.

Isn't somewhere ability to project it to plane as perimeter? Like scan helix to get projected line?

[[Jo...]]

As stated with Curve, use a cylinder cutting object to create a path down center of ramp.

Next option would be probe 2 points in ramp to create a line. Use self center strategy so it will follow curvature(scan).
The tricky part will be recalling or projecting that into 2d line so you get only A1 or A2, NOT a compound angle.

[[Cl...]]

Does he have a model? Section 3 or 4 equally spaced portions of that inside form, and create curves.
After scanning them, get the Minimum Coordinate from each one of them. Recall those into a 3d line
(That might be a little tricky due to that inside curved surface).

[[Er...]]

We do not have curve. Since that should be a cylinder bent around the center that would make it a torus.

If torus won't work I'd try one small cylinder on one end 8mm long scanned with lines. Then another at the other end. Create a line between recalled features.

Then compare back to a plane.

[[Cl...]]

I would think that surface profile alone would be a better callout?