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View Full Version : Applying radii to edges, simple objective yet hard to do!



Gigmahabir
2008-10-29, 02:08 PM
This one seems easy to me but for some reason I just can't get it to work. Brain fog? I've attached images of what I'm trying to do, which is apply radiused edges to a few corners. I've built my solid extrusion and I'm applying void sweeps that define the radius to the denoted corners. I keep getting can't create sweep and can't keep elements joined.

I figured the void sweep can't be created because the profile is intersecting itself along the arced portion of the path. How then do I apply equal radii to all the edges that I want?

The void sweep picture shows the radius profile I'm trying to use and also shows the path I'm trying to follow. At the point I took this screen cap I was trying to break the path into invididual segments, hence why you see a seperate void sweep for the arced path.

I need a router!

tomnewsom
2008-10-29, 02:18 PM
It's a pain, this one. I had to resort to Revolves for each corner last time I faced this problem. There might be another answer though.

tedg
2008-10-29, 02:22 PM
This one seems easy to me but for some reason I just can't get it to work. Brain fog? I've attached images of what I'm trying to do, which is apply radiused edges to a few corners. I've built my solid extrusion and I'm applying void sweeps that define the radius to the denoted corners. I keep getting can't create sweep and can't keep elements joined.

I figured the void sweep can't be created because the profile is intersecting itself along the arced portion of the path. How then do I apply equal radii to all the edges that I want?

The void sweep picture shows the radius profile I'm trying to use and also shows the path I'm trying to follow. At the point I took this screen cap I was trying to break the path into invididual segments, hence why you see a seperate void sweep for the arced path.

I need a router!
Not sure it this helps but did you try "aecfillet"?

Gigmahabir
2008-10-29, 02:34 PM
Tom, thanks for the suggestion - there I was thinking that if only I could sweep the profile while holding one end fixed - the revolve tool! Classic "doh" (homer simpson) moment!

It makes sense though with regards to the way a sweep works and a the way revolve works. Sweeps push or pull a profile along a path with the behaviour that along a curve there is potential for the sweep to intersect itself should the radius of the curved path be too small, or the profile too big for that curved path.

Ted, I think "aecfillet" is an ADT command, but I'm using Revit.

Thank you both for your help!

clog boy
2008-10-29, 02:48 PM
You could probably try to put the sketch extreme right or left from the 2D path, so it doesn't intersect itself. ie starting point of arc = origin
If the radius gets too big because of that then it can't be created in the real world as well.


What are you trying to make if I may ask?

tedg
2008-10-29, 03:12 PM
Tom, thanks for the suggestion - there I was thinking that if only I could sweep the profile while holding one end fixed - the revolve tool! Classic "doh" (homer simpson) moment!

It makes sense though with regards to the way a sweep works and a the way revolve works. Sweeps push or pull a profile along a path with the behaviour that along a curve there is potential for the sweep to intersect itself should the radius of the curved path be too small, or the profile too big for that curved path.

Ted, I think "aecfillet" is an ADT command, but I'm using Revit.

Thank you both for your help!
OOPS sorry, I wasn't paying attention to the forum title.
But if you were in ADT......this would have worked for you :p

Gigmahabir
2008-10-29, 04:20 PM
I'm stumped, I used Tom's advice on creating the radius located at the edge with a void revolve and it worked on a test file. However, when I try it in the family I'm creating it simply won't work...what's more is that in the test file if I try to create another void revolve similar to the one that is already there, it also gives me an error!