Double Wound Helix

[Anonymous]

Hi, 

I'm trying to model a Double Wound Helix Condensor, I've tried the Coil command as well as the sweep command, but I'm having a hard time getting it to the right shape. Any input or any ideas on how to approach this problem will be appreciated. Thanks

I have attached the DWG and STP files

[IgorMir]

Hello!

You are missing the point here. Your model is no different in approach to what Walter has done. While from manufacturing point of view your model is quite valid, but it is not what the original design was asking for. Here are two files for you to compare.

Best Regards,

Igor.

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@TheCADWhisperer wrote:

I will come back later and tweak and finish this up later - but I have to go get the yard mowed.  (no time for card games here)

[TheCADWhisperer]

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@IgorMir wrote:

...but it is not what the original design was asking for.

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What did I miss from the original design?

Here is what I did.

I had great trouble in virtual world so I went back to the real world and retrieved a length of hose from the garage.

I then formed coils to roughly the dimensions indicated in the AutoCAD drawing.

Then taped in position to keep it stable.

Compared my real world "solution" to the original AutoCAD drawing and saw that the AutoCAD was a simplified 2D depiction of the real world.  I strived to use same dimensions as those given in the original AutoCAD drawing.

Using my real world model I then modeled it in Inventor.  I could still tweak it here and there, but I am satisfied that it pretty closely represents what could actually be manufactured.

Nearly all of my dimensions match the original AutoCAD drawing dimensions.

I think that my "solution" would be easier to edit than the solution that Walter posted.

Your Coil2 example looks like it might be useable, but I would have to experiment with the original AutoCAD dimensions to see if it could be edited to match the drawing.

One thing that has made it confusing for me to follow is that there are at least 3 different threads on this part discussion.

[IgorMir]

Hi TheCADWhisperer;

All I am saying is that I did follow the design shape of the coil as exactly as it was presented in the drawing. No presumption was taken. And the difference in our models are clearly seen in the JPEG images I have posted earlier. Yet I agree that from manufacturing point of view yours and Walter's suggestions are more then satisfactory. Should the need arise to make such a part - I sure thing would get it done in accordance with your approach to the model.

As for the editing my model - there are three main parameters. Two are in the Sketch1 which controls diameter of the pipe and the radius of the coil. And one - which controls the Thickness of the pipe's wall. That's if the amount of coils themself is constant. If not - then a bit more work will be needed to make one parameter to address the follow up ones for the coil's turns. But I leave that one to work out by the OP. 

And yes, the OP has asked the same question in three different threads. I too wonder why?

Cheers,

Igor.

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@TheCADWhisperer wrote:

---

@IgorMir wrote:

...but it is not what the original design was asking for.

---

What did I miss from the original design?

Here is what I did.

I had great trouble in virtual world so I went back to the real world and retrieved a length of hose from the garage.

I then formed coils to roughly the dimensions indicated in the AutoCAD drawing.

Then taped in position to keep it stable.

Compared my real world "solution" to the original AutoCAD drawing and saw that the AutoCAD was a simplified 2D depiction of the real world.  I strived to use same dimensions as those given in the original AutoCAD drawing.

Using my real world model I then modeled it in Inventor.  I could still tweak it here and there, but I am satisfied that it pretty closely represents what could actually be manufactured.

Nearly all of my dimensions match the original AutoCAD drawing dimensions.

I think that my "solution" would be easier to edit than the solution that Walter posted.

Your Coil2 example looks like it might be useable, but I would have to experiment with the original AutoCAD dimensions to see if it could be edited to match the drawing.

One thing that has made it confusing for me to follow is that there are at least 3 different threads on this part discussion.