How to create this in 3D

[CAnnondale]

Hi Guys,

 

I need some help in here. I want to draw a dresser coupling and I am stuck on how and where to start. Can any body again extend their knowledge on this matter. I really do not know how to start.

 

I have attached a link and an image as a reference,

 

Thank you & appreciate it much.

 

 

Style 38 for CIP

[CAnnondale]

Appreciate if you could give an .ipt on how to do it.

[rdharvey]

Could you extrude a solid profile and the n create 3d sketches to produce a surface and then surface cut to leave the *wavey profile*?

[Be_cool]

Just wait for JD

[rdharvey]

what's that supposed to mean?

[Be_cool]

I'm just joking...if no one can solve this problem J.D. Mather will do it in 10 minutes.

[JD Mather]

Revolve

Cut

Extrude

Loft

Mirror Loft

Circular Pattern

Done.

[rdharvey]

 

If you create your construction geometry as shown in the image you can select the points for the curvature of your surface .... simple way of doing it.

 

once your offset surfaces are made you can cut from you circular extrude your surface to leave a wavy effect..

 

if jd has another way of doing it then fair enough.

[Be_cool]

HAhahahah loool!!! That's what I'm talking about

[rdharvey]

depends what approach you want to take it could be produced using simple revolve - cut - mirror and loft functions... surfaces look fancy though lol

[rdharvey]

oh JD has replied. lol didnt take long

[JD Mather]

I'll try to post an actual solution when I get a chance, but a bit busy today.

The wavy spring doesn't look right and more complicated to create.

The I think the key to this one (to simplify) will be lofting to faces (not sketches) and set tangent, to avoid having to create 3D sketch intersection rails, but even that shouldn't be too difficult. (said the one who hasn't tried yet)

[CAnnondale]

Hi guys,

 

Good morning. Thank u all for the replies. Anyway, i did try to create it using loft surface using a 3D sketch. It did somehow shows that shape but on some portion of the surface it is not 90deg perpendicular.

 

I will post an image when i get to the office.

[CAnnondale]

Here is the image of what I have done.

 

 

Issues encounter:

 

1. Can not get the 90³ perpendicularity after lofting to surface.

2. Can not thicken the surface to more than 4mm.

[JD Mather]

I don't see the Extrude I suggested earlier in that picture?

There is a planar feature for the clamping face of the fasteners.

That needs to transition (Loft) to the cylindrical face.

Attach your file here.

 

That planar face is easy to create and needed for the tangent loft.

It is hard to say from the pic if the other face is cylindrical or conic, but either case is easy to model.

 

The trick is to then get the tanget transition Loft from the planar to the cylindrical (or conic) feature. It may or may not require a 3D sketch for rails. (I don't see a need for surfaces).

 

If the 3D sketch is needed I would create it using an intersection of two 2D sketches.

Post your file and I'll fix it up.

[CAnnondale]

I don't see the Extrude I suggested earlier in that picture?

There is a planar feature for the clamping face of the fasteners.

That needs to transition (Loft) to the cylindrical face.

Attach your file here.

 

That planar face is easy to create and needed for the tangent loft.

It is hard to say from the pic if the other face is cylindrical or conic, but either case is easy to model.

 

The trick is to then get the tanget transition Loft from the planar to the cylindrical (or conic) feature. It may or may not require a 3D sketch for rails. (I don't see a need for surfaces).

 

If the 3D sketch is needed I would create it using an intersection of two 2D sketches.

Post your file and I'll fix it up.

 

 

Hi JD,

 

Here is the file .ipt for your reference. appreciate the help you guys are doing.

Dresser Coupling Style 38 150#.ipt

[JD Mather]

Clamp_jd.zip

My first attempt to understand the geometry.

Now that I see where I'm going wrong, I'll try to post back in a couple of days with another solution.

[pluissand]

I think that this a good aproximation

[CAnnondale]

I think that this a good aproximation

 

Ummmm... Close but that is not actually the shape of the curls.

[ReMark]

Close but no cigar.