topic Re: How to dimension a circular pattern around a point in Inventor Forum

How to dimension a circular pattern around a point

timothyhwilliams — Mon, 06 Mar 2023 17:15:48 GMT

I have a circular hole pattern on a rectangular part that does not have a hole in the center of the pattern. How do I dimension a hole pattern around a point?

Inventor 2023

Re: How to dimension a circular pattern around a point

JDMather — Mon, 06 Mar 2023 17:14:26 GMT

@timothyhwilliams

Can you Attach your *.ipt file here for demonstration in drawing annotation?

Re: How to dimension a circular pattern around a point

timothyhwilliams — Mon, 06 Mar 2023 17:18:24 GMT

Here you go

Re: How to dimension a circular pattern around a point

timothyhwilliams — Mon, 06 Mar 2023 17:19:19 GMT

Here you go

Re: How to dimension a circular pattern around a point

CCarreiras — Mon, 06 Mar 2023 18:07:01 GMT

Hi!

You can create an axis (intersection between the sketch center point and the sketch face).

After creating a hole, you can create a circular pattern, selecting the hole as the source and the axis as the rotation reference.

Re: How to dimension a circular pattern around a point

timothyhwilliams — Mon, 06 Mar 2023 18:18:57 GMT

How would I dimension the circular pattern in a drawing?

Re: How to dimension a circular pattern around a point

CCarreiras — Mon, 06 Mar 2023 18:42:00 GMT

Try to avoid doing patterns in sketches.
Maintain the sketches simple and clean.

It's easier to control the 3D feature's patterns.

Anyway, i don't know if i understand your question.... but in this case, the pattern is controlled by the circle diameter, the number of repetitions in the scope (in this case 4 rep. in 360deg)

Re: How to dimension a circular pattern around a point

timothyhwilliams — Mon, 06 Mar 2023 18:56:09 GMT

I can create the hole pattern but when I make a .idw using the .ipt I do not know how to dimension the circular Hole pattern.

rn.

Re: How to dimension a circular pattern around a point

CGBenner — Mon, 06 Mar 2023 19:00:48 GMT

@timothyhwilliams

I think you may be looking for Annotation\Centered Pattern.

Re: How to dimension a circular pattern around a point

timothyhwilliams — Mon, 06 Mar 2023 19:12:38 GMT

Re: How to dimension a circular pattern around a point

CCarreiras — Mon, 06 Mar 2023 19:30:47 GMT

Ok, now i understand what you need.

First, include the axis you did to center reference the 3D circular pattern:

Now you can use the tool that @CGBenner suggested:

Check it here:

https://knowledge.autodesk.com/community/screencast/163cc202-8c03-42e1-bd7b-bb631d37bc7c

Re: How to dimension a circular pattern around a point

timothyhwilliams — Mon, 06 Mar 2023 19:37:49 GMT

Thanks for your help!!!

Re: How to dimension a circular pattern around a point

jtylerbc — Mon, 06 Mar 2023 21:32:17 GMT

In addition to the methods already shown, there is also a way to get Inventor to figure out the center of the pattern itself. Right click the view, and click "Automated Centerlines". Make sure the option for Centered Patterns is turned on (you may have to turn off some options you don't want as well), then click OK.