How Can I put holes in a pattern on helix shape object?

[Anonymous]

I am new to Autodesk Inventor, and I want to put holes on 2 sides of helix shape object.   The holes are about 0.125" deep and 0.80" wide and next to each other.   Encluded the shape.

Thanks for your help

[sam_m]

Welcome to the forum.

Whenever posting please list the version of Inventor you are using as anyone on an older release is unable to open any example files (and commands/abilities change with releases) - so it helps to prevent frustration for everyone to know the version from the start 😉

I have been able to open the file, so you're at least on Iv2012 (or older)...

1) all your sketches are unconstained and missing dimensions.  Without any dimensions the sketches can change freely and have no concept of scale - you say you want 0.8" diameter holes, but what if you sketch is only 0.1" wide to start with, or 100"...  Plus it needs to be constrained to either the origin, or a fixed point, to prevent the sketches moving about...  I know this probably sounds confusing, or even unnecessary, but with more and more use of Inventor it soon becomes vital.

For help, it's worth reading through JD Mather's tips for beginners guide as it will give you a great start with Inventor:

http://home.pct.edu/~jmather/SkillsUSA%20University.pdf 

2) I can see a helical rib running around a rod/shaft but I'm still lost where you're wanting your holes.  Can you post a sketch/photo/image of what you're wanting.  "2 sides of helix shape object.... and next to each other" isn't massively descriptive.

[JDMather]

See Tip #47  http://home.pct.edu/~jmather/SkillsUSA%20University.pdf

I am curious,

how did you get your geometry to exact sizes without dimensions.

Did you originally have dimensions and then delete them?
If so, why?

 Have you installd Service Packs 1 & 2 and Update 3 for 2012?

http://usa.autodesk.com/adsk/servlet/ps/dl/index?siteID=123112&id=2334435&linkID=9242019#section25

[Anonymous]

I am started to work with Autodesk Inventor since Thursday and every now and then.   I still do not know many of basic of AutoDesk Inventor.

[Anonymous]

Thanks for replying.

I have downloaded the PDF, and will create a new diagram with everyone recommedations.  

Viewed tip #47, and still is confusing.

[JDMather]

That document was a shortened version of this one

http://home.pct.edu/~jmather/AU2007/MA105-1L%20Mather.pdf

You will do a curve driven pattern using the Rectangular Pattern tool.

Make a attempt and then post it here.
I could give you a "solution" but it will help you learn if you try it yourself first (it is tricky).

[Anonymous]

I try it and I could not figured out.  Please give the solution.  

Thanks for your help

[JDMather]

Post your attempt here - it doesn't matter if it is incorrect.

[Anonymous]

I could not even create a hole on helix surface.? I can create a hole square side, but I do not want?it there.
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This is part of a pet project.? I?do greatly apperiate your help.?? Please send me the solution.
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Thanks