equal distances

[Anonymous]

Hello

The attached part file has a cylinder with 12 blades.The blades are are taller on the outside and slowly decrease in height toward the middle.I`m am having problems with obtaining equal distances between the blades.Could someone please view my part and advise me where i may have gone wrong.Are there other techniques/commands which may result in a better way of producing these blades.Thank you

Terry

INV 2012 EDU

[Dennis_Jeffrey]

Use the origin X axis for the pattern direction instead of the circular edge. Then flip the direction of the pattern.

[Anonymous]

Thanks Dennis

I applied the origin X axis for the pattern direction and then flipped the direction of the pattern as you suggested.It did create equal distances between the blades but the pattern lost the curvature.

Cheers

Terry

[Dennis_Jeffrey]

Sorry, I missread. I'll look at it again.

[nmunro]

A couple of solutions attached. (Inventor 2012)

equal distance 2.ipt - If equal distance between the blades is not critical, you can base the pattern on the length of the curve. The curve needs to be adjusted to provide a symmetrical solution.

equal distance 3.ipt - Since Inventor does not have a point based pattern (pattern based on selected points) you'll have to manually create relationships between the blades. The model shows one way you might approach it, there are a number of other ways it could be done. Not as flexible as a pattern if you need to adjust the number of blades.

[Anonymous]

Hello nmunro

Thank you

Terry

[Anonymous]

Can the Chamfers i created on the 12 blades be performed in 1 command instead of creating them individualy for each blade

Best Regard

Terry

[Anonymous]

Hi

Following up on my previous post.I was able to get the shape on the blades by using the chamfer command but i had to use the chamfer command for each blade.. Is there a option with the chamfer command so i can do all 12 blades in a single go with the chamfer command.Any suggestions on other ways i could get the desired shape on the blades?

Much appreciated

Terry

Inventor 2012

[JDMather]

You do not need to create a new Chamfer Feature for each edge - simply click all of the desired edges in one go (and include in mirror as well).