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Trouble starting with surfacing

I've been using solidedge for years but have never needed to use the surfacing commands to do much other than the occational loft.  I've looked over a few tutorials and tried my hand at creating this shape but I just cant seem to wrap my head around it.  Could someone provide a sample so that I could pick apart how you did it?

 

 

16 REPLIES

Re: Trouble starting with surfacing

I can see symmetry about at least one vertical plane.

A closely similar object is the baby bottle for which a tutorial exist on this page.

See if you find it useful for a start.

 

~Tushar

 

Re: Trouble starting with surfacing

Thanks for the link.  Your correct on the symmetry.  I went through the tutorial but I'm still struggling to come up with anything even close.  I can create this monstrosity using bluesurfs and working in quardrants.

 

 

I was able to find a solidworks file of this same shape but it looks like it was built using slices.

Re: Trouble starting with surfacing

Are you trying to replicate in CAD one of the ones from the shelf? Do you have a drawing to work from, or at least some camera shots? You need a picture/drawing from the top/front/right, to make a start at this. 

Dan Staples
Director, Solid Edge Product Development

Re: Trouble starting with surfacing

The photo is one I found online as I dont have one,  but the part file (drawn by someone else)  attached to my last reply is pretty much the profile I'm looking to recreate.

Re: Trouble starting with surfacing

Have you tried to strip the cross sections from the model you provided adn just lost or create a blue surf between them.?  that looks promising.

 

Re: Trouble starting with surfacing

OK. So we are in the final stages of testing ST8 and its all hands on deck -- including me. So for the next hour, I will seeing how far I get on your falconry handle. I'll send installments.

 

1. First I created an ASM with the SolidWorks part.

2. Then I used Synchronous to move it to centered on the coordinate system and rotated so Z is up.

3. Then I did Create in Place to start a new part.

4. Then I LOOSELY traced the shape, using the Curve command. I did not try to snap to stuff. 

(Put your curves in Synchronous and your surfaces in Ordered)

5. The plan is to try BlueSurfing to a point at the top -- so I have two major curves that join at the top and are curvature continuous. 

6. Realise that the bottom is probably more like a continuous revolve and then there will be a major body surface and a blend between them. 

7. Here is "so far" 

Dan Staples
Director, Solid Edge Product Development

Re: Trouble starting with surfacing

Made a bit more progress. Logged a PR. :-) It's addictive. Think I am getting close - -pretty compact tree -- only 3 major surfaces. I use "Chrome" style which has a built in sphere map to look at surface quality -- you can see for example it is curvature continuous across the seams. Needs a bit more tweaking but on the right vector.

 

 

Dan Staples
Director, Solid Edge Product Development
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Accepted by topic author fabricationdesigns
‎08-26-2015 04:32 AM

Re: Trouble starting with surfacing

Here are a few big picture tips on approaching this:

 

1. Three major surfaces: One for the major knob. One for the revolved base. One for the blend between the two.

 

 

 

 

Dan Staples
Director, Solid Edge Product Development

Re: Trouble starting with surfacing

Thank you so much for spending time on this. I can't wait to get back in front of my workstation and give it another shot. I spent far too much time pulling my hair out today. Would you be able to upload the assembly file you ended up with? The photos will be a huge help but sometimes I understand methods better by deconstructing them.