Best Approach?

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 From:  Don (DON_CHEKE)
4431.1 
Can anyone recommend the best approach to create the upper cap of this steam iron handle? I tried creating a network.

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Don Cheke
Visit: Textual Creations
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 From:  Mike K4ICY (MAJIKMIKE)
4431.2 In reply to 4431.1 
Hi Don,

Problems start to arise when trying to match separate surfaces through whatever various methods, and tangent transitions are required.

With NURBS geometry and MoI it is best as Michael has pointed out to "think whole-istically".
Or to try to achieve as much of the overall shape as possible with one tool action.

If not, then you are forced to find ways to blend surfaces while maintaining tangents, while also charged with avoiding construction methods that create those ugly pinched and bunched areas common with Revolving.

Speaking of tangent surfaces, the Blend tool would be perfect -

In this pic, I used a Loft to create the body of the iron and used Extrude to form a tangent reference surface needed for the Blend tool to go from.
Mirror the new Blend and Loft combination over and join everything together.



By the way Don, really nice iron model! I dig that kind of modeling.

Mike
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 From:  Mike K4ICY (MAJIKMIKE)
4431.3 In reply to 4431.1 


Oh no, I just didn't make that shape from three curves and a loft?! ...yes, I did. ;-)




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 From:  ed (EDDYF)
4431.4 In reply to 4431.3 
Very cool MM. Don't think I've seen a loft done quite that way before. Looks like you got the problem ironed out.

Ed
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 From:  Michael Gibson
4431.5 In reply to 4431.1 
Hi Don, is it possible for you to include the 3DM model file along with your post so that others can use your actual geometry to work with to make suggestions? That helps a lot - otherwise people are going to have to do the work to create the other parts of your model in order to show you some examples. And possibly the things they create may be slightly different than what you have in shape or topology or whatever.

It looks like Mike has some good recommendations for you above - probably the easiest thing to try is the Blend tool. Normally the blend tool is for making a smooth surface that connects 2 surfaces that have some space separating them, see here:
http://moi3d.com/2.0/docs/moi_command_reference7.htm#blend

But you can also use it when you've got 2 edges that touch each other just at their ends and have an open area in between them, so if you've got 2 edges at the top of something like this:


You can select both the edges there (note - for this kind of a Blend you've got to select the edge of the surface - if you've got any curve objects that were used to build the surfaces hide those to get them out of the way so that you can select the surface edge as the blend input), and then run Construct > Blend to build a smooth piece between them:



- Michael

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 From:  Don (DON_CHEKE)
4431.6 
Thanks for the pointers, but I just can't get exactly what I want. I am so used of precision drawing that getting something 'close' does not feel right. I will need to experiment further. I have not had much time to practice with MoI for the last few months so I am a bit rusty.

Michael, I know it is good to upload one's models for others to look, but I don't always like to post my models on the public forum as one can easily lose them to the masses.

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Don Cheke
Visit: Textual Creations
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 From:  Michael Gibson
4431.7 In reply to 4431.6 
Hi Don, you don't necessarily have to post the entire model - for example in this case just those top side surfaces of the handle that you're trying to place the cap on would work.

Without any kind of geometry to work with I'm afraid it is much more difficult to give very good suggestions.

- Michael
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