....... path extrude in Rhino 3 .......

[Maximus3D]

Hi

1. Draw the shapecurve you wanna extrude
2. Draw the pathcurve you wanna extrude along
3. Use "Sweep 1-Rail" or "Extrude Planar Curve - Along Path", one of those tools should do the job for you.

/ Max

[popoff]

Hi

1. Draw the shapecurve you wanna extrude
2. Draw the pathcurve you wanna extrude along
3. Use "Sweep 1-Rail" or "Extrude Planar Curve - Along Path", one of those tools should do the job for you.

/ Max

... i try "Extrude Planar Curve - Along Path" , but result was sick ... :sad:

[JimCarruthers]

Sweep1 should work fine for that exact example, though it's not so good at handling sharp corners in a single sweep.

[popoff]

Sweep1 should work fine for that exact example, though it's not so good at handling sharp corners in a single sweep.

... thanks Jim , i`ll try sweep 1 rail ...
glad to see somebody in Canada using Rhino :)

regards

[jcorpe]

For this particular shape, I would recommend placing the profile at the beginning (like you have), copy and snap the profile to the corners of all the radii and to the end as well. This keeps the profile from twisting as it turns the corner. It's a little more work but it will come out much more precise.

[popoff]

For this particular shape, I would recommend placing the profile at the beginning (like you have), copy and snap the profile to the corners of all the radii and to the end as well. This keeps the profile from twisting as it turns the corner. It's a little more work but it will come out much more precise.

... thanx for an answer ... solid modeler of rhino is definitely not the best ...
when i loft surface , offset the same surface and blend edges ( i make this one object - adding polysurfaces with puzzle button ) , so this must be solid ... right ?!

on those kind of objects booleans are inverted - i press union - becomes subtract , when i press subtract - becomes union , well intersect works ( i think so )

...

[jcorpe]

Well your description is not complete so I don't know if you have a "solid" for sure. I've never really gotten into the blend tools so I can't help there. Usually Booleans fail or have problems when a) you've forgotten to cap a hole or two or b) you have two surfaces somewhere in the boolean operation that are perfectly aligned in space. This last one may have been fixed recently but when I model, I make sure that parts overlap entirely when I plan on doing booleans. To find problems with leaks, you can use "Analyze > Edge Tools > Show Edges and if there are any naked edges found, you should try to fix the area in question. Generally, you know a polysurface is closed (solid) when you've joined all your surfaces and the part is no longer highlighted. The command line will also tell you if you have a closed polysurface after joining. Otherwise, if the parts stays highlighted after you clicked on your last surface, something isn't correct and finding the naked edges will help. Lastly, if you don't already know, on parts that end where a flat plane could close the polysurface (an extrusion is the best example) use the Solid > Cap Planar Holes feature.

[JimCarruthers]

Rhino uses the normal directions to determine which way is "out" when booleaning objets that aren't closed, so when a boolean does something unexpected that's why.

There is a 'solid' option in offestsrf, but it's not yet a real 'shelling' tool, you have to do some manual cleanup--albeit of things that can also cause 'solid' modelers trouble too. There's a section on that on my "Form Vs Shape 1" advanced training cd, http://www.hydraulicdesign.net/advancedtraining.htm . The latest release of V3 also has a mesh 'shelling' tool, so if you need a thick object for some particular purpose you can mesh it then thicken that.

[popoff]

Well your description is not complete so I don't know if you have a "solid" for sure. I've never really gotten into the blend tools so I can't help there. Usually Booleans fail or have problems when a) you've forgotten to cap a hole or two or b) you have two surfaces somewhere in the boolean operation that are perfectly aligned in space. This last one may have been fixed recently but when I model, I make sure that parts overlap entirely when I plan on doing booleans. To find problems with leaks, you can use "Analyze > Edge Tools > Show Edges and if there are any naked edges found, you should try to fix the area in question. Generally, you know a polysurface is closed (solid) when you've joined all your surfaces and the part is no longer highlighted. The command line will also tell you if you have a closed polysurface after joining. Otherwise, if the parts stays highlighted after you clicked on your last surface, something isn't correct and finding the naked edges will help. Lastly, if you don't already know, on parts that end where a flat plane could close the polysurface (an extrusion is the best example) use the Solid > Cap Planar Holes feature.

... sorry i`m new in Rhino ( i make my first model now http://www.sharepic.info/userfiles/popeye/rhino-problem-01.gif <= early version) , once again thanks for reply ...

:thumbsup:

[JimCarruthers]

What you show in your image there is how extrude along curve works, it doesn't rotate the section at all. You'd use Pipe or Sweep1 for something like that.

[popoff]

What you show in your image there is how extrude along curve works, it doesn't rotate the section at all. You'd use Pipe or Sweep1 for something like that.

... that`s pic for an old topic ...
i already use pipe command ...
i have harder problem now - my laptop ( Toshiba Sattelite P30 , CPU 3.2GHz , 512Mb RAM , 128 Mb video ) cannot render nothing ( i try max and vue ) , after some minutes of working , laptop just switch off ....

however thanx for reply :thumbsup:

[Maximus3D]

I'd guess it shutsdown itself due to overheating if you try to render on it, unless you have special cooling for your laptop then it might work better and be more stable. But ofcourse it could be a crappy XP installation also or some broken .dll file or anything else causing it.

/ Max

[popoff]

I'd guess it shutsdown itself due to overheating if you try to render on it, unless you have special cooling for your laptop then it might work better and be more stable. But ofcourse it could be a crappy XP installation also or some broken .dll file or anything else causing it.

/ Max

... well i install XP two months ago ... Vue ( on Rendering ) and Rhino ( on fillet operations ) also shut down my laptop ... i already start making some simple parts for my CAT model :sad: ...

... i`ll add more RAM ( 512mb ) ...

...

[JimCarruthers]

Of course if you're doing rendering on a laptop you want to temporarily disable the power-saving features, it's quite apt to just be kind of a slow machine(especially if it's old enough that it didn't ship with XP) and going to sleep before getting anything done. More memory probably would help too.

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