Turning corners with crown moulding

[philvanderloo]

What's the best way to miter crown moulding in inside and outside corners? I watched a youtube vid where a 90 degree spline was created and he took the crown profile and did an extrude along spline. Every time I try it the extrusion is in the center and the corner forms an X, They overlap but don't cut off like in the vid. I keep moving the pivot point on the profile to different places but it doesn't change anything.

[SkylineArch]

I'm assuming in Max. You can create your crown profile, then draw your crown "path". Select that path spline and apply a Sweep Modifier to it and pick the profile spline.

[philvanderloo]

Mark I tried that a while back and posted it to this forum. That was a disaster and no one ever did offer a solution. I'm sure there's a way to make that work but I spent hours trying and it just didn't work. Wish I kept the screen shots of the result but I'm sure it's floatin around here somewhere.

Here I just dug one of the images out of the recycle bin- Other results included gigantic crown, upside down crown.

Thank You though

 

[SkylineArch]

This is very simplistic, but it's an example. I mainly model in SketchUp, so I'm not sure what else to offer.

 

 

[marius e]

Draw shape as one continuous spline in max. Then draw your profile that you want to use as a sweep. (custom shape)

 

Untick 'banking' and there you go, just fiddle with the pivot alighnment...

[Francisco Penaloza]

I use sweep modifier all the time, never had a problem, from the screen shot first alight your molding profile exactly perpendicular to your path. Then after applying the sweep modifier you can control your shape with the Mirror check box, if it is pointing upside down or facing the worn way, then un-check smooth path to avoid Max to try to keep soft curves in the corners, and also you can control the position of your molding with respect to the path with the "align pivot" option click on any of those black dots forming a square pattern, to alight your profile as you need it, I also recommend to un-check "Banking" to keep all your light straight.

With all that you should be able to so nice moldings without any problems.

Check this quick video

 

Edit:

oops lots of answers while I was typing this, now if you can't do a decent molding after all these, Shame on you !

Edited November 14, 2013 by fco3d

[philvanderloo]

Here's my latest attempt. I've tried this 80 different ways with I don't know how many profiles in different scenes and it just isn't working. Can anyone see where I'm going wrong.

Thank You

 

http://youtu.be/6r-e3uTbQBA

[stuartkemp]

That's strange... Have you made sure your pivot point is in the correct position and rotation?

 

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[philvanderloo]

Stuart,

I've moved the pivot point to every vertice on the profile. The results vary but it's always a disaster.

As far as rotation? I haven't seen where to adjust that? OTher than align to object and align to world. Tried both.

[stuartkemp]

Do you want to email me one of your files? I can't see where you're going wrong but I'm intrigued now!

 

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[Francisco Penaloza]

I also think it is pivot related or scale related.

The path for your molding was created in max or other software?

Also the profile was modeled in max? Or it is coming from CAD or REVIT.

One way to check is select the path and apply Reset XForm, the same for the profile

After that select the path and reset the pivot to center of the object, the same thing for the profile and let us know.

[philvanderloo]

Sent you a private message Stuart.

Thank You

[RyderSK]

--) Weld---)Reset Xform (On everything)

[philvanderloo]

Did that Juraj. Better but still twisted. I moved the resetxform above and below the sweep in the modify dialog. No change there.

 

 

[Francisco Penaloza]

I am at home now, So if you like send me only the path with the profile, in Max 2012 format.

I still think is your pivot that it got twisted in some moment.

I can see from your video that the pivot is pointing down

[philvanderloo]

OK guys I'm back at it and still getting a big fat "F"ail. I seem to have most of the issues worked out except the scale. I'm hoping this is an easy one.

Everything is sweeping correctly but the scale is huge.

 

http://youtu.be/T-hy2A20yNw

[CliveG]

Everything is sweeping correctly but the scale is huge.

]

 

Try re-scaling the profile in vertex mode.... or it's possibly easier simply retrace a fresh spline.

[Francisco Penaloza]

That's so strange,

are you modeling everything in MAX? or still working between REVIT &Max I am asking you because I read other post from you talking about both software, nothing wrong with this, just asking because to me this look like a scale issue, but a imported scale issue. apply Reset X from to that profile collapse and try again it should work.

Still strange thou the file I send you didn't have that problem after I applied the reset X form a to it and reset the pivot, that was pointing down.

[philvanderloo]

Francisco,

I modeled the scene in Revit. Imported as an fbx and selected everything and did a reset xform. Then I drew the profile tracing a jpeg in another max file and did an import/merge, selecting the crown profile from the other .max file. Then did a reset xform on the crown profile and moved the pivot point to the bottom corner of the crown where I wanted the crown to follow the sweep and this is how it ended up.

Guess I'll try to retrace the profile in this file as CG suggested and see how that works.

[notamondayfan]

Mark I tried that a while back and posted it to this forum. That was a disaster and no one ever did offer a solution. I'm sure there's a way to make that work but I spent hours trying and it just didn't work. Wish I kept the screen shots of the result but I'm sure it's floatin around here somewhere.

Here I just dug one of the images out of the recycle bin- Other results included gigantic crown, upside down crown.

Thank You though

 

[ATTACH=CONFIG]50310[/ATTACH]

 

I sometimes come across this problem with sweeps. I find rebuilding the splines in the correct view port (ie top for ceiling paths, front for door frame paths) will sort this problem.

 

Dean

[Jose Negrete]

You can try creating a rectangle>convert to edit spline>attach your profile to it>delete rectangle at sub object level, leaving behind your profile>re-position pivot>attempt your sweep again.

[Francisco Penaloza]

Check your units in the max file that you created your profile, also I usually don't move the pivot of the shape, the buttons of alignment in the sweep panel and the X Y controls are more than enough to align the path as need it.