modeling coil pipe

[tecnico_plast]

Bye to all,
After years of modeling, I happened a piece that I can't draw.
It is a tube coil, in a few words I have to wrap a pipe in pe ø20 on a cardboard soul.
inner diameter of the coil 400 mm, external diameter 800 mm, variable height.
Obviously it is not a helical sweep, at the moment there are no other solutions. . .

 

[320i S]

hello, unfortunately I can't understand what this is about, because you put this "variable height", I of tube coils (I call them dwarfs), I do many at work and the length of maximum tube, I make it compute to the system with discreet precision, but in my case it is a matter of spires, until you reach the maximum capacity planned.
Please put a sketch by hand.

 

[tecnico_plast]

Hello, first of all thank you for the answer.
variable height in the sense that the coils can be of different heights.
to understand us better, we are talking about coils of this type:
clicca quiclicca qui

 

[320i S]

ok, then make a revolution around the coil axis, of a series of circles with outer diameter like the tube you need to wrap, each circle must be spaced from the other of at least 0.1mm (to avoid mathematical errors), you can decide whether to put the circles arranged to rectangle, or to triangle.
made the revolution (which is not a single trajectory, but of concentric rings), I create with sweep the initial and final traits of the naspo.
to lighten the mathematics and sketch, do not make the corresponding circles inside the tubes, idem the sweeps do not have the inner section.
creates a surface measurement as a feature and measures the section of one of the ends
(if you don't want to create the measuring feature, you can insert the end area value directly)
for calculation of length, create a parameter "real number" type "length"
in post-regeneration relations, create a relationship so:
length==pro_mp_volume/(measuring feature)/1000

"1000" is used to convert from mm to meters

so you have the maximum internal length (if you want to increase a percentage or sum us a fixed value, add to the report.

for weight, since tube suppliers, give weight to the meter, put under the previous relationship (always in post regeneration), this report:

pro_mp_alt_mass=length*(weight per meter)

Maybe you can create the weight parameter per meter so you don't have to change it in relation.

aesthetically the rolled tube seems perfect, but it is parameterized and with some adjustment, even finish in the bom.

 

[tecnico_plast]

I thought of something like that.
I wondered if there was a way to sweep on a spiral, but evident you can't do it.
Thank you.

 

[320i S]

I thought of something like that.
I wondered if there was a way to sweep on a spiral, but evident you can't do it.
Thank you.

in a single step no, but also doing it equal to reality or almost, in case you have to derive a similar file but with different measures, it becomes difficult to put hands on it.
with the system I put you, generate any type of parametric model, in very fast times and ready to be inserted in the bom.

 

[tecnico_plast]

Thank you for your help.