canted spring model creation

[s_pme20]

Hii All,

I need to model canted spring. But, not sure how to start even.

could some1 help me plz.
model looks like:
View attachment 5446

 

[kenppy]

not quite, but it might be a start
resume suppressed


2011-11-23_074908_canted_spring.prt.zip

 

[Bob_W]

Sachin:

I just made one this morning in WF4 that may be of some help. I haven't looked at kenppy's solution but you should now have two options.

2011-11-23_082329_canted_spring.prt.zip

Bob

 

[s_pme20]

thanks kenppy..
U seems to be very good at surfacing..
by the way, i still didnt get: how can I control second sweep pitch...I dont want any wxact dimension, but for representation purpose, I want it to look more dence (more number of turns)..

Thanks again,
Sachin

 

[s_pme20]

thanks Bob,

approach of both are similar..
but couldn't edit as mentioned in previous post.

 

[Bob_W]

I just made another one to complete the full circle. For this to work I used a semi circle for the first trajectory. The first trajectory simply made a normal helical surface with an edge that was to used in the next VSS. The parameter TURNS was used to control the turns as you would guess. The second VSS was a second surface that was created by a single line that was sketched in the direction of the coil. The length of this was controled by a Cosine relation to cause the cant. Then I rotated the the half circle to complete the full diameter and solidified.

Hope this made sense

2011-11-23_084048_canted_spring_2.prt.zip

Bob

 

[s_pme20]

excellent...

Thanks both of u

 

[kenppy]

Looks like Bob's got the full solution, I couldn't quite see how to drive the cant!

 

[Bob_W]

Sachin

Glad to help. You helped me with family tables in drawings and hope I was able to help you a little bit. The last one should have been able to be scaled to fit. If changing the coil diameter it probably would be best to reduce the turns first.

Bob

 

[s_pme20]

Thanks Bob,

I understood whole procedure and can change every parameter to suit with my need.
One thing I noticed that u used relations in sketcher.I would prefer to use relations out of sketcher like.
so relations can be visible outside and one can easily figure out.

 

[Bob_W]

I use them both ways and confuse myself sometimes

If I know I am going to have a bunch of relations I try to do them like you suggested as it is a little more difficult for others to find them when they are embedded in the sketches.

Bob

 

[jsantangelo]

I had this same question back in March 2009. Unfortunately the forum crash lost the images. I do have them on my work computer along with the WF4 part file from it.

Here is a link to the file, 4MB: santangelo-eng.com/proe_tuts/WF4_angled_helix.zip