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
Spherical helix
Options
Go to last post Go to first unread
Previous Topic Next Topic
digitalphaser  
#1 Posted : Friday, April 17, 2015 1:48:41 PM(UTC)
digitalphaser

Rank: Senior Member

Joined: 4/17/2015(UTC)
Posts: 256
Man
Germany
Location: Berlin

Thanks: 17 times
Was thanked: 72 time(s) in 51 post(s)
Hi! I use a viaCad Pro 9. Has anyone any idea how to make a spherical Helix.

UserPostedImage

Thanks!

Edited by user Friday, April 17, 2015 1:49:24 PM(UTC)  | Reason: Not specified
Back to top
NickB  
#2 Posted : Friday, April 17, 2015 4:38:40 PM(UTC)
NickB

Rank: Senior Member

Joined: 2/19/2007(UTC)
Posts: 501

Was thanked: 2 time(s) in 1 post(s)
I think I have it.

Using the Helix Spline tool, create two paths one of a small diameter, and an outer of a diameter greater than the diameter of your finished part.
Extrude a spiral surface between these two helixes.
Create a surface sphere of the diameter that you want your final sphere to be (minus the radius of your wire).
Use the spiral surface to cut the sphere surface.
Use the Explode Curve tool to create a spherical helix that follows the path of the cut on the sphere.
Finally use the extrude pipe tool to create a rod that follows the spherical helix path that you created.
File Attachment(s):
Spherical helix.sfx (936kb) downloaded 16 time(s).
NickB attached the following image(s):
SphericalHelix.png (83kb) downloaded 7 time(s).

You cannot view/download attachments. Try to login or register.
Shark FX 9 build 1143
OS X 9.5
3.6 GHz Core i7, 8GB, GTX 760 2GB

matter.cc
Back to top
WWW
thanks 2 users thanked NickB for this useful post.
digitalphaser on 4/18/2015(UTC), ProUser on 7/12/2015(UTC)
Tim Olson  
#3 Posted : Saturday, April 18, 2015 12:10:29 AM(UTC)
Tim Olson

Rank: Senior Member

Joined: 2/2/2007(UTC)
Posts: 5,447
United States

Was thanked: 499 time(s) in 353 post(s)
Nick very clever approach!

I noticed the surface was a bit heavy as a 2 rail sweep and found a ruled surface lighter.

Tim
Tim Olson
IMSI Design/Encore
Back to top
digitalphaser  
#4 Posted : Saturday, April 18, 2015 6:53:06 AM(UTC)
digitalphaser

Rank: Senior Member

Joined: 4/17/2015(UTC)
Posts: 256
Man
Germany
Location: Berlin

Thanks: 17 times
Was thanked: 72 time(s) in 51 post(s)
Many thanks to @NickB.
I have seen a similar solution in SolidWorks. But did not think, how can I use this method in viaCAD. My mistake was. I took the solid sphere and tried to split it.

Special thanks for the attached file.
Back to top
NickB  
#5 Posted : Saturday, April 18, 2015 4:55:30 PM(UTC)
NickB

Rank: Senior Member

Joined: 2/19/2007(UTC)
Posts: 501

Was thanked: 2 time(s) in 1 post(s)
Originally Posted by: Tim Olson Go to Quoted Post
Nick very clever approach!

I noticed the surface was a bit heavy as a 2 rail sweep and found a ruled surface lighter.

Tim


Yes. The two rail sweep was really funky, but it looked good enough to get a very good approximation of a spiral.
Shark FX 9 build 1143
OS X 9.5
3.6 GHz Core i7, 8GB, GTX 760 2GB

matter.cc
Back to top
WWW
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