Profil on a Spline

Eugen

Hello guys and girls

I start the profil in an angle of 90° and want to finish it in an angle of maybe 0°. How to do this?

S1mon

Add sections to both ends, Loft with a path instead of Sweep.

steve_shubin

@Eugen

https://cad.onshape.com/documents/7af57b44fe139792806a3e29/w/5db11394284e047d6b2cb2fb/e/43396c0ff3e8cde1a737b6aa

This method uses loft

It does NOT require any intermediary profiles

This profile rotates 1/4 turn from end to end

The twist happens all along the path at a constant rate of rotation from end to end

The twist is built around the 3D Spiral FS

Also, a shout out to @Evan_Reese for his Freeform Spline FS

Never used it on anything before. Didn't bother reading anything

Played with it for a few minutes and was able to pick it up -- because of the well designed interface !!

Like the ability to insert and easily edit. Great tool.

steve_shubin

Eugen said:

I start the profil in an angle of 90° and want to finish it in an angle of maybe 0°. How to do this?

You want a twist of 1/4 revolution (90°)

The 3D Spiral featurescript will only do whole number revolutions
So I have to use a LEAD IN to chew up 3/4 of a revolution

So the straight lead in needs to be 3 times longer than the freeform spline
3 parts of straight line to 1 part of freeform spline

Another way to say it is, for the one revolution of the spirals ------
3/4 of the length needs to be in the straight line
1/4 of the length needs to be in the freeform spline

This means that there will only be 1/4 of a revolution left for the spirals by the time they get to the freeform spline

EvanReese

steve_shubin said:

Also, a shout out to @Evan_Reese for his Freeform Spline FS

Never used it on anything before. Didn't bother reading anything

Played with it for a few minutes and was able to pick it up -- because of the well designed interface !!

Like the ability to insert and easily edit. Great tool.

Aw shucks. Gee thanks mister!