Circular Pattern, Partial giving wrong result - Why?

[I_B_Jones]

First time I've used Circular Pattern (Partial) in Fusion Design and I'm getting an odd result. Why?

My error or a bug? A Full circle works as expected.

Screenshot of Test design attached.

I created a Sketch on XY plane of a Wedge (30 degrees arc) and saved.

Extruded Wedge to a Body.

View from Top.

Do Circular Pattern Partial on Object=Wedge body, Axis=Z, Angle=90 degrees and Quantity=3 items.

So I expected to see 3 adjacent Wedges over 90 degrees ( 3 x 30 degrees), and no spaces between them.

But no, I see gaps between the wedges and extending well over 90 deg.

What am I mis-understanding? Or is this a bug?

[davebYYPCU · Accepted solution]

You have what you asked for.

Drill down to the highlighted wedge, horizontal lower edge.  Say it’s East and Zero degrees.

Where is that same edge on the last pattern item.

North or 90 degrees, from my referenced edge.

What you want, is partial angle = 60 degrees.

Might help….

[I_B_Jones]

Thank you @davebYYPCU .

My stupid! I should know better than to design late at night!!! Yes, it's like the 4 posts but 3 gaps scenario that I'm well aware of. I should have realised Angle was the displacement angle, not the total angle. Stupid mistake.

Thank you.

[davebYYPCU]

Go easy on yourself, simple somewhat optical illusion.

Happy to help...