Is Sweep the right to for modelling a bracelet?
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 From:  Mike K4ICY (MAJIKMIKE)
4860.4 In reply to 4860.2 
Stevecim,

Go to your Options>View> and lower the "Mesh Angle" number. The smaller the angle, the more polygons have to be written to the vid card.
But if you are patient and can wait until MoI re-draws to the card, then you can get a smooth looking surface that is great for saving screen captures of.
Before going back to manipulating the model, just change the number back to something higher.

For your convenience, put this script in your shortcut keys list in the Options:

code:
script: /* Toggle mesh angle */ var newang, ang = moi.view.meshAngle; if ( ang == 5 ) newang = 15; else if ( ang == 15 ) newang = 25; else newang = 5; moi.view.meshAngle = newang; var sidepane = moi.ui.getUIPanel('moi://ui/SidePane.htm').document; if ( !sidepane.getElementById('meshangval') ) { sidepane.body.insertAdjacentHTML( 'beforeEnd', '<div id="meshangval" style="position:absolute; right:5px; bottom:5px;"></div>' ); } sidepane.getElementById('meshangval').innerText = newang;


Then you can toggle through a few mesh angle choices on the fly, and the number will be displayed at the bottom of your command panel.
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 From:  Michael Gibson
4860.5 In reply to 4860.2 
Hi Steve,

> Hmmm, Since I'm working in mm, the gap between surface
> and the profile is .02mm at largest point, so I guessing to
> the naked eye it will look smooth.?

It probably would be hard to notice it - but the gap there is just a gap between the on-screen "realtime" display mesh and the edge curve, it's not a gap in the actual surface itself.

When you go to export to a mesh format like STL or whatever, you will be able to adjust the export options to generate a denser mesh at that time if you want, and if you made it denser than that display mesh you would see that area actually get filled in with polygons to make it smoother than that.

You end up seeing a gap in this case in the on-screen display because curves get displayed by the display engine to a high degree of accuracy - they're continuously refined until the on-screen display is within a screen pixel of the true curve geometry.

But unfortunately it would take too long to do that equivalent "1 pixel display accuracy" type thing with surfaces, so surfaces get a somewhat rougher display mesh calculated for them just one time and then that display mesh is used for all display of it after that, it's not recalculated when you zoom in closely unlike the curve display.

So anyway, that's why you may see some disagreement between the shaded surface display and the display of an edge curve - the edge curve display is much closer to the actual model geometry while the surface display is kind of rougher in order to keep things fast.

That rougher surface display does not mean that your actual surface itself is rough though, it's just that current on-screen display that looks like that, when you go to export you can generate a denser mesh at that time if you want to.

- Michael
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 From:  Michael Gibson
4860.6 In reply to 4860.1 
Hi Steve, also to answer your actual question - Sweep is probably the right tool for what you're trying to do.

It's a little hard for me to be 100% sure because I only see just one view of your model there and it's a little bit hard for me to understand the full shape that you're trying to create. When you post a question, it can really help if you also attach the 3DM model file with your actual objects in it so I can actually load the model file and look at it from various angles and zoom in on it, etc... all of which can't be done with just a screenshot.

- Michael
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 From:  Mike K4ICY (MAJIKMIKE)
4860.7 In reply to 4860.6 
> also to answer your actual question...

You can also use the Revolve command, choosing the center axis of the bracelet and choosing you profile. Same result.

There are about three other ways I can think of to get the same result, MoI is good that way.
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 From:  stevecim
4860.8 In reply to 4860.7 
Big Thank you to everyone that responded.

I managed to get what I wanted using both sweep and revole and learnt a bit more about MoI :)

In my book, any day you learn something is a good day :)
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