• This forum is the machine-generated translation of www.cad3d.it/forum1 - the Italian design community. Several terms are not translated correctly.

design of a spring

  • Thread starter Thread starter lollone
  • Start date Start date

lollone

Guest
Hi.
I'm trying to draw a spring trying to have a real geometry.
the spring has the last and the first spire making a full ride to another step.zone where it is molated to get the plans.
So I guess I have to use the variable step helical sweep...but I can't find the "right" of the chart.
Can anyone please explain this to me?
or can you attach a file of a spring from which I can understand the procedure?
Thank you!
 
place the file of a constant step spring, cut out above and below a plan that determines the support of the same.
Hi.
 

Attachments

Sorry but I can't open it because I have wf3.
when you draw,with the constant section, I imagine that cuts on 2 floors that determine the free length.I usually do so nail,
but the spring I have to draw has the first spire with a lower step (just more than the d. of the spring wire).The latter is the one that is moved to get the plan.
I would like to represent a geometry like this. but I don't understand how to change the variable step chart.
Any advice?
 
the advice is to create the sweep curve, acting on the control points you go to create, where you need.. .

I understand what you mean.. at the ends there is a sort of "spira in more" almost perpendicular to the axis, or however with the drastically reduced step, tending to zero; this to also give stability once it is placed
 
downloaded alibre xpress (gratis), has a special option to check when you generate a helid.
 
That's right!... I see you've understood me great.. .
I don't have a problem with it, but it seems impossible that there is no more automatic way. Thank you.
 
lollone said:
That's right!... I see you've understood me great.. .
I don't have a problem with it, but it seems impossible that there is no more automatic way. Thank you.
Click to expand...
you could create two "mozzicons" of the same and then join them but at that point the problem would be to ensure tangency/continuity

Try it anyway. . created the central body at constant pace and the two (races) ends at step decidedly:biggrin: decreasing
 
Yes, I did! the result is not great though!
but at this point I will settle!
Thank you!
 
I'm pretty sure I saw something once!
But I don't remember.
I would like to... thank you maxopus
 
lollone said:
Hi.
I'm trying to draw a spring trying to have a real geometry.
the spring has the last and the first spire making a full ride to another step.zone where it is molated to get the plans.
So I guess I have to use the variable step helical sweep...but I can't find the "right" of the chart.
Can anyone please explain this to me?
or can you attach a file of a spring from which I can understand the procedure?
Thank you!
Click to expand...
Bye-bye
I don't think I am absolutely a modeling expert in pro-e, but "girovagando" on the internet I came across a site of a great... :-) several times also mentioned on this forum.
you put two links pointing to two of his tutorials on springs, I hope they can serve you. . .
http://www.e-cognition.net/pages/helicals.html
http://www.e-cognition.net/pages/datumgraph.html
 
I managed with a little work, but without using the helical function and variable step.

I also automated everything because I use a family table.

cmq I made 3 pieces of helical sweep.
the central with step that is equal to (free length-2d_filo) / number of useful edges
extreme parts with pitch equal to d_filo
then to make grinding I made a cutting extrusion above and below.

If you want I can post the model, but I use the wf4.

Hi.
 
great,maxopus... now I understand! ! !
I didn't come because I didn't segment the spring development line.
I couldn't take the steps for step change!

interesting also the other method (the one of the videos).
more complex but interesting!
 
BLU BUGATTI said:
I managed with a little work, but without using the helical function and variable step.

I also automated everything because I use a family table.

cmq I made 3 pieces of helical sweep.
the central with step that is equal to (free length-2d_filo) / number of useful edges
extreme parts with pitch equal to d_filo
then to make grinding I made a cutting extrusion above and below.

If you want I can post the model, but I use the wf4.

Hi.
Click to expand...
I'd like to see him... (I hope to go to 4 in a bit)
but you have no problem with the tangences between the various helical sweeps?
 
maxopus said:
Why do you complicate your life?
I'm finishing the film five minutes and the pizzas are ready:-)

There he is. www.aureaservizi.com/archive/filmat...iabile/sweep elicoidale a pass variabile.html
Click to expand...
so the last edges are not perfectly closed.
still remains the fastest method to create a spring with few features.
lollone said:
I'd like to see him... (I hope to go to 4 in a bit)
but you have no problem with the tangences between the various helical sweeps?
Click to expand...
depends on the type of spring.. sometimes it is slightly serrated because there is a sharp step change.
I attach the model made with wf4
 

Attachments

the function "trajpar" I used it to make the particular attachment!
Maybe someone remembers it!
I was going crazy!
 

Attachments

  • Immagine.webp
    Immagine.webp
    89.8 KB · Views: 28
depends on the type of spring.. sometimes it is slightly serrated because there is a sharp step change.
I attach the model made with wf4[/QUOTE]I've drawn them a lot like this...
we are satisfied with cmq.
Thank you.
I thank you!
always unique!
 

Forum statistics

Threads
44,997
Messages
339,767
Members
4
Latest member
ibt

Members online

No members online now.
Total: 4 (members: 0, guests: 4)
Back
Top