flowline toolpath Help with multiaxis toolpath - flow

[deejflat]

I am having trouble with the flowline toolpath.  I am machining an undercut of -5 degrees.  My first attempts would try and machine both sides of this surface.  I added all surfaces of the part into collision control under check surfaces.  Now everything is correct except the exit.  The toolpath tries to exit into the part. 

I have a 1/8 lollipop cutter already defined from a previous job, Flow parameters selects only the surfaces with the undercut, tool axis control is set to Lines because this is being worked on a 3 axis machine with output format 4axis rotary axis - X axis, lead angle side angle both set at 0, collision control compensation surfaces I have only the selected surface with an undercut, gouge check is off, etc.

My linking parameters seem to be based off of the x axis.  Everything seems to work except the path wants to exit into the part (the opposite side that it starts on.)

 

Anyone know how to force the flowline path to start and exit near the same area?

[JParis]

File so someone can evaluate?

[deejflat]

I could maybe post a picture of the toolpath and a close up of the area worked on, but most of the work we do isn't supposed to be public. 

[JParis]

1 minute ago, deejflat said:

I could maybe post a picture of the toolpath and a close up of the area worked on, but most of the work we do isn't supposed to be public. 

We all run into this...strip out everything but just the related surfaces...

[deejflat]

I saved it under a different name.  It will probably be alright. 

FLOWLINE_HELP.mcam

[JParis]

You have a surface normal issue.....

Click on Surfaces >> Change , the arrow is pointing inward, you want it the other way...

I looked quickly at toolpath 13 and the exit move corrected

You want this 

 

to be like this

[Colin Gilchrist]

One thing you should note:

The "display" of Surface Normals is 'disabled' by default.

Go to the 'View Tab'.

Enable the button that says "Backside". This shows you the 'back side' of the Surface, in a light-green color.

[Guest]

8 minutes ago, Colin Gilchrist said:

One thing you should note:

The "display" of Surface Normals is 'disabled' by default.

Go to the 'View Tab'.

Enable the button that says "Backside". This shows you the 'back side' of the Surface, in a light-green color.

I wish they hadn't changed this.

[deejflat]

Thank you guys.  Much appreciated.  All your advice was spot on!