fillet options

[ParaCAD]

See the attached image. I'm trying to creat a fillet around this boss. The top area should be a large fillet then get small quickly as it routes down & around. Any thoughts on the best way to go about this. I've had trouble with the variable round. I'd like it to just calculate the larges possible radius as it goes around but it won't.

thanks for the help!!

AJ

Adam
Solidworks 2005 SP01.1
Windows 2000

 

[ctopher]

I don't remember the exact settings. You need to change the settings during fillet to get the result. Sorry, I don't have SW here to try it right now.
This may or may not help ...

http://home.pct.edu/~jmather/content/DSG322/solidworks_surface_tutorials.htm

CHris

Chris
Systems Analyst
SolidWorks/PDMWorks 05
AutoCAD 05
ctopher's home site (updated 06-21-05)
FAQ559-1100
FAQ559-716

 

[rfus]

You have a very small face in there. These can always cause problems. Did you try selecting that edge. It may not be tangent or you may not have tangent propogation selected. The best thing you can do is not end up with these small faces in your design.

Here is one thing I would try. First, remove that fillet at the top edge of the plane surrouding you hole. Then go in and select all the faces that are lofting from the circular plane to the filleted 90 degree surfaces. Use delete face with the delete and fill option selected. See if you can create one surface with this feature and then try and fillet it. Then go back and fillet the top circular plane. You may end up with what you are looking for.

 

[support69]

Varaible fillet is the way to do this. You select the edge and it gives you points along that edge. Pick each point and give a % of the fillet to go in that area. THe first and last points you specifiy the Size of hte fillet used.

support69

 

[dezignstuff]

One way is the variable radius fillet you already tried. That usually works, if you post the model someone could give you a hand with it.

Another way that sometimes gives better (smoother) results is the "hold line fillet", where you make a split line around the boss representing where you want the fillet to end, and then use that edge as a hold line.

It would be a good idea to get rid of those face breaks around the boss if you can. It's not clear what's causing them, but on something this simple, you should be able to have a clean edge going all the way around.

SW won't automatically find the largest workable fillet. I've requested this one a few times. It would be a very useful function in some situations.

 

[ParaCAD]

Thanks guys. I was able to work with the variable fillet.

I will try that hold line fillet. thanks for the suggestion. With the variable it doesn't seem as smooth as id like.

Adam
Solidworks 2005 SP01.1
Windows 2000

 

[ctopher]

Good for you.
Also, for your next post and want to show a pic, see faq559-1100. Thanks.

Chris
Systems Analyst
SolidWorks/PDMWorks 05
AutoCAD 05
ctopher's home site (updated 06-21-05)
FAQ559-1100
FAQ559-716

 

[Theophilus]

I think part of your problem is the way you formed the boss--looks like you made two extrusions instead of making a single loft--hence the small surfaces.

Anyway, with the face blend fillet you can use the hold line as mentioned above--that's probably your best option in this case. Remove the small fillet around the edge first, since it's so small (best practices start with large fillets and move to the smaller last--not for dogmatic reasons, but for logical--things work better).

You can smooth variable fillets with some tweaking--check the in-between points (in red when you re-click on a segment), but that can take some time.


Jeff Mowry

http://www.industrialdesignhaus.com

Reality is no respecter of good intentions.