When I Rail Sweep the triangle, the apex always points towards the center of the 3D Polyline.  I am unable to get it to point towards the center of the frame.

I was able to do this before with a different project (and a different version of TurboCAD) by rotating the outline and re-applying the Rail Sweep, so I'm thinking I have forgotten something.


Thanks in advance for any assistance,

Jeff

To change the profile for 'rail sweep' so it cuts a groove, you need to reverse the 'z' direction.  The way I do it is, draw a box, set the workplane on a face of the box how I want it.  Select the profile and use place on workplane, this will change the 'z' direction (and x/y) according to the new workplane.   One can probably mess around with editing a workplane, but the above is a quick way.   

All I did was make a Mirror Copy of the profile, then that copy swept properly.

All I did was make a Mirror Copy of the profile, then that copy swept properly.

That did not work for me.  Exactly the same result.  If it helps debugging, I rotated the triangle to be seen from the front, set the Workplane to Plane by Active View, then mirrored along the horizontal dimension.


Jeff

To change the profile for 'rail sweep' so it cuts a groove, you need to reverse the 'z' direction.  The way I do it is, draw a box, set the workplane on a face of the box how I want it.  Select the profile and use place on workplane, this will change the 'z' direction (and x/y) according to the new workplane.

Tried several variations (different facet, rotating after Place on Workplane, etc.).  Got the same result each time.


Jeff

Here again I think Sweep is a better approach than Rail Sweep.

Henry H

In the attached file shows how I did it, not saying its the right way, just 'appears' to work for me with rail sweep, if this is what you are after.

The blue arrows show the + z axes direction I'd expect the profiles to follow, two profiles required because going off your earlier picture, you mirrored the paths. I angled the profile to try and compensate for some twist, before applying place on workplane to set the z axes.  The extra 'dimple' I added to the profiles was just so I could see better when the rail sweep was roughly correct.

I've no idea if this helps or not.   I totally agree with Henry.  Sweep is often much easier to set up than Rail Sweep.

Here again I think Sweep is a better approach than Rail Sweep.

I have to agree.  With the proper placement of the triangle, I did not have to worry about rotation, although I did have to Join Polyline  with 3D activated to get it to work (got an ACIS Solid Intersection error when I tried to sweep along the lower right Polyline.

Thanks for the help,

Jeff

I angled the profile to try and compensate for some twist, before applying place on workplane to set the z axes.

I wonder why my rotation of the profile didn't work.  Maybe I did that out of order (after the Place on Workplane instead of before).

Thanks for the help.


Jeff