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Valued Contributor
simon_toaldo
Posts: 73
Registered: ‎04-19-2012
Message 1 of 6 (293 Views)

need help with this shape

293 Views, 5 Replies
05-11-2012 10:17 AM

how would one model up this part shape?the part of the model i need some guidance with is where the black lines are situated...using 2013

how would you make this shape?

Simon

*Expert Elite*
cwhetten
Posts: 1,073
Registered: ‎09-03-2008
Message 2 of 6 (276 Views)

Re: need help with this shape

05-11-2012 11:01 AM in reply to: simon_toaldo

How accurate of a shape do you need?  Are you actually manufacturing that pump body, or is it just a representation for use as a purchased component?

 

If it's the latter, then you could create a coil feature (spiral, not helix).  Then sweep the last segment for the vertical discharge.

 

Search the forum for "volute" and you may find some good results.  I think this question comes up frequently.

 

Attach what you have so far and someone may be able to help you further (I am on 2012).

Valued Contributor
simon_toaldo
Posts: 73
Registered: ‎04-19-2012
Message 3 of 6 (267 Views)

Re: need help with this shape

05-11-2012 11:23 AM in reply to: cwhetten

Hi cwhetten

I never even thought of the coil feature .. will try that method..

It is for representation.

I have attached a example but i would like to get the shape a liitle more accurate...i took a picture of my attempt

 

If you do have some time could you give me a example using the coil feature please for the picture i attached previously

 

thanks for the tip

 

Simon

*Expert Elite*
cwhetten
Posts: 1,073
Registered: ‎09-03-2008
Message 4 of 6 (235 Views)

Re: need help with this shape

05-11-2012 01:20 PM in reply to: simon_toaldo

Attached is an example of using the coil feature and a sweep.  I actually had to use two coil features because Inventor will not allow a coil feature to intersect itself.

 

You can tweak the two user parameters to change the sizes.

Valued Mentor
Rich.O.3d
Posts: 525
Registered: ‎08-19-2008
Message 5 of 6 (193 Views)

Re: need help with this shape

05-11-2012 04:51 PM in reply to: cwhetten

If its only for representation, then I probably woudnlt use the coil feature as its pretty memory intensive and will bloat your file size unnecesarily, put a few of these pumps in a mechanical ga and see how your performance drops off

I would just approximate the shape with a couple of arcs, extrude and fillet the edge

 

ps...warman provide 3d blocks of most of there pumps if you contact them

CAD Management 101:
You can do it your own way,
If its done just how I say!
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Valued Contributor
simon_toaldo
Posts: 73
Registered: ‎04-19-2012
Message 6 of 6 (164 Views)

Re: need help with this shape

05-12-2012 04:16 AM in reply to: simon_toaldo

cheers for the example and suggestions.Gives me some things to work with

Simon

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