How to create this geometry?

[drawingsCHR7R]

Hi guys,

Attached is an image of locking 'teeth' that I want to try and recreate, I have tried doing a profile with a 3D sketch to get the path but my attempts thus far have not been all the successful, could someone please assist me in this so that I may learn how to do this better going forward. 

Thanks!

[aurel_e]

My attempt attached (Inventor 2019)

[drawingsCHR7R]

How would one do this in an ipt? Because the part I am doing is actually a casted part and not a sheet metal?

Great attempt though!

[aurel_e]

"Bend part" does work with the extruded part as well. Doesn't have to be a sheet metal plate. You can also use "Convert to part" and add other features.

[JDMather]

What version of Inventor are you using?

Can you Attach the *.ipt file of what you have so far?

[drawingsCHR7R]

I am not too familiar with how that would work on the current piece that i am doing, attached is the part I want to make those 'teeth' on. Would you be able to show me how it is done on this piece?

[drawingsCHR7R]

Hi JD,

I am using IV2021,

attached is the part.

[drawingsCHR7R]

Hi guys,

Took some time but I found a result that I am happy with.

If anyone has a suggestion for a better workflow I would love to hear it.

[freesbee · Accepted solution]

(sorry, I cannot try it because I do not have a 2021 or a 2020.3 under my hands now)

From your picture it looks like a coil feature. Or maybe I've missed anything?

[drawingsCHR7R]

Hi there,

it is not a coil feature, it is a locking mechanism of sorts that prevents the part that sits on top of it from rotating in a certain direction using 'teeth'.

[freesbee · Accepted solution]

...sorry, I was in a hurry and I probably expressed myself wrongly.

I understood that it is a locking mechanism using those teeth to prevent release. My suggestion was to use the inventor coil feature to model that shape. I have done the same in this part (it's a special safety washer that I have authored in a content center), which also has some similar teeth preventing release (even if the real part is much more complicated). They were done with a coil feature, and they look very similar to the picture you have posted (again, maybe I misunderstood).

I hope it helps 

 

[drawingsCHR7R]

Ahh, I see. Yes I actually ended up using the coil feature to get what I wanted, it worked perfectly!

[freesbee · Accepted solution]

...sorry, I have to correct myself once again. In this specific washer I have used a revolution (one can tell it from the shape of the short edge of the teeth), but for the shape of the teeth from your picture, the coil is better.

[drawingsCHR7R]

Agreed, could i see the part file where you used revolution by any chance?

[freesbee · Accepted solution]

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@drawingsCHR7R wrote:

Agreed, could i see the part file where you used revolution by any chance?

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Here it is.

I've used some math to keep it under control: I didn't want too many geometries but still a decent representation of the component.

[drawingsCHR7R]

Thanks a lot! Appreciate all the help.