Creating Coil Length

[bazzafal]

Any help you could offer me I would greatly apprecuiate it, im trying to create a coil ,i have the outside diameter and i have length of pipe i need to work with. Or if you have an equation i could work with , thank you!

 

[sip]

Can you use a helical feature?


Sip

 

[james.lynch]

hey bazzafal,


can you give us a little more information on exacty what you are trying to achieve? (a picture maybe?)


is it a straight or bent pipe? is there a fixed number of coils over the entire length? or if the length was to change would the number of coils increase?


Cheers,


James


P.s. where abouts in Ireland areya?

 

[Brian_Adkins]

This does not appear to be a "tip or trick".... moving to Modeling forum.

 

[bazzafal]

working in longford.


there is no fixed number of coils. the over all diameter has to be limited to 70mm, i have it sort of done, but unsure as if its correct, il post a jpeg of what iv drawn shortly....(using helical sweep) just was wondering if anyone knew how to properly use th "piping application" which might have it

 

[slashct]

I think what you want to do is use a curve and the wrap functionality around the pipe. Maybe something like this?


View attachment 2497

 

[bazzafal]

cool yes thanks, i actually wanna put it inside a pipe but i can do the same just opposite...if you know what i mean! thanks again!

 

[slashct]

I'll repost a model later if I can get to it. In a nutshell, this is how I would create it. I would make a cylindrical surface of the ID of the pipe, than creat a curve that shows the length of the wire aligned (or offeset)to both ends of the length of the curve.Wrap this curve on the surface (select curve, edit, wrap). Creat a sweep select trajectory and use the formed curve. Than thicken the surface to make your pipe.


You can make a solid and do the same, just that the surface allows you to see the wrap easier when you create it.

 

[Dell_Boy]

Bazzafal,

The maths behind this is dead easy.

If the drum inside diameter is D and Length L and the pipe is diameter d and length l

l

 

[slashct]

View attachment 2508


Here is the part2006-07-21_143137_coil_demo.prt.zip