Filleting and other issues

#1

Hello all.

I have been an AutoCAD draftsman for 15 years, and Rhino seems like the perfect 3d modeler for me since it acts just like AutoCAD.

But, I am having a few issues with it.

When I fillet edge an entire box, after the fillet is created it is really obvious as to where the fillet starts and ends, almost like the planes aren’t tangent to the fillet. I have spent several hours researching this but can find no answer. I can find stuff on blends and g0-g4 stuff (which confuses me) but nothing to just make a plane old rounded edges box.

When I change a setting, like background color or anything in the display options dialogue, the screen goes white, the hour glass comes up for about 10 seconds and then the change takes effect.

The viewport stutters and stalls during even slow rotation/ panning and zooming, even when I have only two objects displayed, like two attempts at the aforementioned rounded edges box (listed below). I use a 3D Connexion space mouse, but have the settings adjusted for medium speeds. I thought this might be an undo history using all the RAM, but it occurs on a clean open.

polysurface
Render Material:
source = from layer
Geometry:
Valid polysurface.
Closed solid polysurface with 13 surfaces.
Edge Tally:
27 manifold edges
Edge Tolerances: all 0.000
Vertex Tolerances: all 0.000
Render mesh: 13 meshes 1139 vertices 1254 polygons
Analysis mesh: none present

polysurface
source = from layer
index = -1
Geometry:
Valid polysurface.
Closed solid polysurface with 26 surfaces.
Edge Tally:
48 manifold edges
Edge Tolerances: 0.000468904 to 0.000547392
median = 0.000314933 average = 0.000261944
Vertex Tolerances: all 0.000547392
Render mesh: 26 meshes 5894 vertices 6474 polygons
Analysis mesh: 26 meshes 5219 vertices 5677 polygons

It does this on rendered and shaded display options, but not wireframe. I prefer to work in rendered mode so this presents a problem.

I have a dell XPS, with win XP 32 bit sp2 OS, dual core [Intel® Core™2 CPU 6600 @ 2.40GHz], 4gig of ram and an nvidia 8800 GTX card.

I have just recently learned that I should be running a workstation card instead of a gaming card, but having just dropped $1,600 on the Rhino bundle, I am in no position to do so.

I usually have nothing running in the background, except perhaps the Rhino manual since I am new to the software, and haven’t decided to order the printed versions.

Thank you for any help

#2

Hello,
some screen shots might help?
Is this what you are trying to do?
This is Rhino V4 SR3

Rich

#3

Hi,

First thing, this is not the place for actual technical questions about Rhino, go to Help->Technical Support in Rhino to find a link to the “real” support newsgroup. That said…

Filleting a box leaves obvious seams because that’s what happens when you fillet a box, you’re going from zero curvature instantaneously to some. “Tangency” doesn’t mean “smooth.” What you’re talking about is probably just the roughness of the render mesh, which can be adjusted.

Some of the settings setting stuff is annoyingly slow, certain plugins seem to be sources of trouble, but something sounds odd there, probably related to…

Your system sounds fine, the OpenGl acceleration is probably disabled or something in Wndows. You do not need a workstation card to run Rhino, a couple of the machines I’ve been using have awful Intel integrated video, on Vista even, and it works adequately, that’s the sort of advice you get from people who aren’t on the official Rhino newsgroup. :slight_smile:

#4

thanks for the replies and the screenshot.

what i really wanted is blend surface, not fillet. blend surface gives me the look i want, it just takes a little while to get it.

from what i gather there is no way to set fillet to g4, which is the look i want, but now that i semi-comprehend the work-around i am very happy i chose Rhino.

i am just used to filleting from AutoCAD, and it is so much quicker and easier to fillet all the edges at once than blending six surfaces and patching the corners. but i got it done.

i posted on the newsgroup but no answers to the display issues. thanks for the advice about the roughness of the surface mesh, i will investigate this possiblity as soon as i can.

i usually post all my questions here (i try a lot of different things), as the responses generally are much faster and less complicated, but you are right i should post there, at least first :slight_smile:

#5

Hi there BanzaiGonzo!

I love to hear of AutoCAD users turning Rhino users, I used to work with AutoCAD myself, and Rhino is the best choice I have ever made =)

Your display issue, sounds like a driver problem to me… In general nVidia drivers are full of bugs to begin with, but before you do anything else update all drivers. Your system is (waaaaay) good enough for even complex modells, its by no chance an hardware issue. I trust you use WinXP? If you use Vista, reinstall XP, try running rhino.exe in “xp-mode” or just wait for the next vista sp. Vista simply isn’t finished.

As for your filleting issues… mmmhm suspecting this is a issue of viewport mesh settings, like JimCarruthers pointed out… I chould look into it - and maybe Im wrong - but a fillet should in theory give you the same result as a blendsrf… and what on earth do you need a g4 fillet for? Only the car industry uses those :stuck_out_tongue:

#6

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