Helical Sweep along a path

[78finn]

Hi all,


I'm trying to figure out how to model a helical sweep that is constructured along a path (open path - consisting of a number of curves). Can anyone help me with this as I'm pretty stuck. I know how to create a helical sweep, but have no idea how to do so in conjunction with a path...


If anyone out there could shed any light in the way of an explanation or link to such I would really appreciate it.


Thanks then


Mikey

 

[jbuckl]

create a variable section sweep (surface) along your trajectory;


The sweep should be a line length(sd0)sketched at an angle (sd1) to a plane or centreline through the end of the trajectory.


The length should be radius sd0 of helical sweep


The angle should be sd1*360*trajpar*no of rotations.


The next feature can be swept down the outside of the helical surface.


Send your trajectory / curves if youre unsure


Jbuckl

 

[kirancitd]

Go through the following link


[url]http://www.mcadcentral.com/articles/templates/proe.asp?artic leid=13&zoneid=2[/url]

 

[jbuckl]

kirancitd,


I think you might have missed the requirement of 78 finn......


the link you posted uses a helical sweep which is not suitablefor 78 finns requirement (s)


this is because a helical sweep only follows a linear trajectory.


maybe the second part of the feature is relevant though.


a variable section feature can be constructed to make a helical sweep along a non linear trajectory.

 

[ReinhardN]

will a formed datum curve be helpful ?
http://www.ptc.com/cs/cs_23/howto/ngf1656/ngf1656.htm
ReinhardN