Why I cannot select the origin point as central point for a pattern?

[thburn]

Hi,

I want to create a circular pattern around the coordinate system origin point.

But for some reason I cannot select the coordinate system origin point (from the browser list) as center point 'Center Point' still shows 'no selection'.

Other points like e.g. end of lines I can select but this I don't want.

How can I select the coordinate system origin point as center for a circular pattern?

Thanks!

[San_Escobar]

Hi thburn 

For 2D Geometry you can, as circular pattern tool only requires a point, based on plane that you are sketching.

But for 3D Circular Pattern, it does not work, as the origin point is the intersection of 3 axis, XYZ, therefore it does not work as axle for revolution

Hope it helps.Happy Modelling

[thburn]

Hi Blownfish,

thanks for reply. But in a sketch this does not work as you can see in my screencast:

https://knowledge.autodesk.com/community/screencast/a56afdf2-9c2b-4898-bd48-e0b9325155c6

What I am missing?

[TrippyLighting]

How about selecting that center point in the viewport ?

[thburn]

Hi TrippyLighting,

thanks for reply, but this won't help in my case. At the origin of the coordinate system I have a lot of starting points, end points of sketch lines, construction lines they are all stacked at the same position (the origin).

If I click the origin in the viewport I don't get the origin point but e.g. a starting point from a construction line since it is the topmost on the stack.

This is not what I want. I need a way to pick the coordinate origin point regardless if at same position other points are located.

[Anonymous]

You can pick origin point for circular pattern, just you need to pick it form viewport, not from browser. Turn on visibility of origin and it will work fine.

[thburn]

Hi alechowski,

thanks for reply. But your approach works only if you have no other objects starting from/ending at the origin point.

If you have other objects starting from / ending at the origin point (e.g. lines, construction lines, etc.) then you have many points stacked at the position of the origin.

If you then click on the origin point you will activate the topmost point of the stacked points (e.g. one start point of a construction line) and not necessarily the origin itself.

[michallach81]

Can you elaborate why it can be any point that is at origin, why it must be the origin?

[michallach81 · Accepted solution]

One more thing, when you create new sketch Fusion creates Sketch Point at origin by default it's not visible but it's there. To pick any other entity hold LMB over origin, than a window will pop-up, and you would be able to pick some points beneath the top one.

[HughesTooling · Accepted solution]

If you hold the mouse button down you get a list of items to pick from. The list is newest at the top, so the point at the bottom will be the sketch origin.

Mark

[thburn]

Hi HughesTooling,

thanks for reply, I know that list it's called 'Select Other', but the annoying thing as that you do not know which 'Sketch Point' belongs to which part of the sketch.
I did not knew that the elements in this list are ordered by creation time, so may your approach could help...