Highspeed transition

[Quickmike]

When using surface rough contour with the highspeed transition the output is linear 3 axis moves. I think it should output a helical move. Why not?

[Guest CNC Apps Guy 1]

Maybe your post linearizes helixes.

[Quickmike]

I am using mpmaster post. I thought it would output helix moves but I'm not sure. We are running a Haas macining center which will read the helical move. I don't have any experience reading nci code, but I was curious whether or not mastercam is outputing nci code with linear moves or helical on the transition motion.I looked at the post and it supports helical moves. In the general output settings helix_arc is set to 1. This leads me to wonder if the nci is a helix. Any insight on this would be greatly appreciated.

 

[ 04-30-2002, 10:46 AM: Message edited by: Quickmike ]

[Quickmike]

I have not seen any follow up posts on this thread but I'm still looking for an answer whether or not mastercam outputs a helix or 3d line segments. (In the nci.)

 

[ 05-09-2002, 09:20 AM: Message edited by: Quickmike ]

[Trevor Bailey]

Look in your post. It should be there as to how you can output what you want. Also, check you filter setting if you are using V9.

[Allan Brown]

Backplot the transition with the save geometry option on. Analyze your resulting geometry. Splines will end up as linear moves. Helical arcs end up as flat arcs (as they can't be represented as arcs in the geometry - a helical arc is not really an arc.)

 

If you have helical arcs in your NCI, but lines in the posted code, this points to a post issue. If you have lines in the NCI, this is how Mastercam is handling the smooth transition.