Posted: 18 July 2008 at 4:06am | IP Logged

Hi Everyone,

I'm trying to model a carton.  I have been supplied with the outside profile so am starting to model the top section which I see as the more complex bit.

So far I have modelled it using boundary blends but from recent posts I think I may get a better result using Variable Section Sweeps.  Unfortunately I'm struggling with it and not getting very far.  Can anyone guide me in the right direction please?  Model is attached.2008-07-18_040530_carton-04.prt.zip

Any help would be greatly appreciated.

Thanks

Posted: 18 July 2008 at 7:16am | IP Logged

Davisdony, What do you mean by 'i think you have put the pictures on the planes'?

The sketched curves in the model was the proifles I am using to create the boundary blend.  See link to model on 1st post!!  I did attach it so people could see what I'm talking about.

Posted: 18 July 2008 at 10:03am | IP Logged

Jacek,

Thanks, so I'm on the right road then??

I couldn't access the images on your link so I couldn't see how similar it is.  The shape of the carton was given to me by a client.

Posted: 18 July 2008 at 10:09am | IP Logged

Hi Micheal, I dont think your model is too bad, like you say you are limited to the constraints in the sketches that you have been given.  The curvature analysis isnt too bad but I guess the reflection could look better.  I guess its a matter of controlling what happens in between your sketches, adding a few more controlling datum curves etc.

 I am no master at surfacing but I am also trying to learn little by little every day, if I get chance i`ll see if I can improve on yours... doubt it though

Posted: 20 July 2008 at 6:12am | IP Logged

Thanks Skint, the client seemed happy enough with the basic shape though as you say the reflection could look better, I'm just not too sure how to improve it.

Now to add the handle, no doubt I'll be back asking more questions!!

Posted: 21 July 2008 at 3:15am | IP Logged

A decent attempt Jacek and good to see how you created your surfaces, I see you took a similar approach to Radge from pdf :)  It doesnt use the exact base curves which michael was constrained to though does it.

Posted: 21 July 2008 at 3:37am | IP Logged

I can't open rar files in work, only zip files, but will do it when I get home so I can see what you've done Jacek.

I suppose if a model is constrained in the way this one is, there's only so much can be done to get a good surface.  Am I right?