logo
NOTICE:  This is the new PunchCAD forum. You should have received an email with your new password around August 27, 2014. If you did not, or would like it reset, simply use the Lost Password feature, and enter Answer as the security answer.
Welcome Guest! To enable all features please Login or Register.

Notification

Icon
Error
Blending edge against surface (#3109)
Options
Go to last post Go to first unread
Previous Topic Next Topic
SG2009  
#1 Posted : Monday, April 12, 2010 7:51:59 PM(UTC)
SG2009

Rank: Junior Member

Joined: 12/26/2009(UTC)
Posts: 14
Newbie question:
I am modeling a handle that protrudes from the top of a box.
The handle outline will be cut with a 0.5 dia mill.
After the handle is cut, the edges of the handle will be rounded over, from both sides, with a "rounding over bit" with a 0.125 radius. The tool can't round over flush to the top surface.
How is the best way to model this? I am using ViaCad 2D/3D. When I use the blend tool it blends all the way to the surface.
Thanks for your help.
Back to top
jdi000  
#2 Posted : Monday, April 12, 2010 8:30:02 PM(UTC)
jdi000

Rank: Administration

Joined: 7/29/2007(UTC)
Posts: 1,862
United States

Thanks: 1 times
Was thanked: 87 time(s) in 81 post(s)
Originally Posted by: SG2009 Go to Quoted Post
Newbie question:
I am modeling a handle that protrudes from the top of a box.
The handle outline will be cut with a 0.5 dia mill.
After the handle is cut, the edges of the handle will be rounded over, from both sides, with a "rounding over bit" with a 0.125 radius. The tool can't round over flush to the top surface.
How is the best way to model this? I am using ViaCad 2D/3D. When I use the blend tool it blends all the way to the surface.
Thanks for your help.


Hi

Did you try the blend with the chained edges option unchecked?
Maybe you could post a pic of what you are blending?
Regards
Jason
jdi000 attached the following image(s):
blendops.PNG (15kb) downloaded 4 time(s).

You cannot view/download attachments. Try to login or register.
Windows 11, 10
Back to top
SG2009  
#3 Posted : Tuesday, April 13, 2010 7:19:29 PM(UTC)
SG2009

Rank: Junior Member

Joined: 12/26/2009(UTC)
Posts: 14
Thanks for your reply. I have attached a file with the detail of what I am doing.
The part protruding up along y needs to be rounded over. The tool would be oriented on the Z axis. Rounding from the maximum y point to the surface in the z-x plane, a point will be reached where the edge of the round over bit will contact the surface. The root of the protrusion cannot be fully rounded rounded over. Starting from the root where the tool edge just hits the surface, the round over tapers from full to zero against the z-x surface.
I tried all the permutations of the options, with no help, though I am glad you suggested it since I didn't realize they were there.
Is the setback parameter active? What does it do?
Thanks again.
File Attachment(s):
test.vc3 (30kb) downloaded 5 time(s).

You cannot view/download attachments. Try to login or register.
Back to top
jdi000  
#4 Posted : Wednesday, April 14, 2010 3:45:54 AM(UTC)
jdi000

Rank: Administration

Joined: 7/29/2007(UTC)
Posts: 1,862
United States

Thanks: 1 times
Was thanked: 87 time(s) in 81 post(s)
Hi

See attached file if this is what you are looking for you can use a variable blend , option in drop down set to by position, Mark the part with .125 and 0. In the options box uncheck all options before picking edges.


Regards
Jason
File Attachment(s):
test w blends.vc3 (71kb) downloaded 4 time(s).
jdi000 attached the following image(s):
vblenpositions.PNG (50kb) downloaded 5 time(s).

You cannot view/download attachments. Try to login or register.
Windows 11, 10
Back to top
Steve.M  
#5 Posted : Thursday, April 15, 2010 6:41:40 AM(UTC)
Steve.M

Rank: Senior Member

Joined: 6/18/2008(UTC)
Posts: 978

Was thanked: 1 time(s) in 1 post(s)
Originally Posted by: SG2009 Go to Quoted Post
Is the setback parameter active? What does it do?


The setback on the blend is for use (if required) when 3 or more edges meet.

The pics attached show with and without setback applied.
Steve.M attached the following image(s):
01.png (18kb) downloaded 4 time(s).
02.png (22kb) downloaded 4 time(s).

You cannot view/download attachments. Try to login or register.
Back to top
SG2009  
#6 Posted : Saturday, May 8, 2010 9:24:04 AM(UTC)
SG2009

Rank: Junior Member

Joined: 12/26/2009(UTC)
Posts: 14
jdi00 and Steve.M - Thanks for your replies. I tried them both. And I apologize for taking so long to look at them. I got pulled off to do other things.

Jason, Thanks. I would have never guessed to try this. I don't seem to remember seeing it in the documentation. I think this is the way to go.

Steve. M, Thanks. I tried your suggestion. ViaCad reports that the geometry or topology at end of blend too complex. I guess the program has some math difficulties. I tried it on an intersecting corner and it is interesting. I am not sure how you would machine this. It looks like more material is removed then without a setback.

Thanks again.
Back to top
Steve.M  
#7 Posted : Saturday, May 8, 2010 9:36:39 AM(UTC)
Steve.M

Rank: Senior Member

Joined: 6/18/2008(UTC)
Posts: 978

Was thanked: 1 time(s) in 1 post(s)
Originally Posted by: SG2009 Go to Quoted Post
I guess the program has some math difficulties.

What, Acis/VC, never :rolleyes: :D
Back to top
Users browsing this topic
Guest
Forum Jump  
You cannot post new topics in this forum.
You cannot reply to topics in this forum.
You cannot delete your posts in this forum.
You cannot edit your posts in this forum.
You cannot create polls in this forum.
You cannot vote in polls in this forum.

Powered by YAF.NET 2.1.2 | YAF.NET © 2003-2024, Yet Another Forum.NET