Having probs creating a helix

[ShiftZ]

I'm having some difficulties creating a helix pattern on a diameter. I use "create rectangular shapes", locate my datum and establish my length and height. After that I add rads to the left end from the datum and delete the entity at the reference point(meaning the vertical line that joins the box). From that point I change my view to isometric and locate the pocket toolpath feature. From there I chain a toolpath, making sure that I have selected the "open" for pocket shape. No problems. I then switch on the grid feature making sure that it matches my diameter and is brightly attired. From that point I insert a circle center point to match the diameter. Now I'm lost. I do realize that I need to extend a line from the center of the circle matching the circumfrence and draw a line back to the "oal" but before I do that I need to "XForm Roll" and it's here that I encounter all of my pain. Help out a newbie boyz, Salute!

[Mike-T]

Both in versions 9 and x, There is a create helix.

This doesn't work for you ?

[ShiftZ]

I'm creating a full machined path that takes out 70% of a surface diameter, not a thread.

[ShiftZ]

Not only that but the surface is relived, that is to say that there are two diameters that will be in place after machining. This isn't a hack job. The helix approaches to one point from 180 degrees by two arcs over 360 degrees, simple for mastercam guys. I did it with a calculator two years ago but have since decided that 4 hours of manual programming can be done in 30 seconds of understanding how cad works. I need help, not snide comments.

[Matt Berube at Ferron Mold]

ShiftZ,

 

In spite of your detailed description I can't picture what you're after. Do you have something to post on the ftp for people to look at ?

[Guest]

I agree with Matt seeing your probelm should make it a lot easier to help you solve.

[Mcam Nut]

I dont really see what you are looking for either, but can you not just create a helix from 180 degrees to 360 degrees on the centerline, then do a swept surface of the geometry of the helix?

[crazy^millman]

Need to be a little less sensitve as well. WE have no clue who you are what your back ground is and if someone is asking a question it is not a snide remark. I have done tons of helix stuff anf been doing Machining for about 20 years and I am also scratching my head wondering what yopu are trying to do here. The old saying a pciture is worth a 1000 word really applies here.

 

BTW welcome to the Forum.

 

Also do you know anything about C-planes and switching between them for making geometry?

[88Matt]

I think I see what he wants and rolldie would be the best bet.

 

That is if they've got it fix for X yet.

 

Matt