Wrapped contour outputs far too many rapid repositions

[vworpi]

When generating a wrapped contour around a cylinder, I've noticed fusion creates a lot of rapid repositions to go from the end of the contour back to its start.

Net result is that the rapid time is wasted by having a couple of hundred very small movements rather than one or two big ones.

Anything I can tweak to reduce this?

[engineguy]

@vworpi 

Is this a 2D Contour ? If so do you have the "Keep Tool Down" option under the "Linking" tab enabled ?

Always best if you can just upload the Fusion f3d file so settings can be checked 🙂 🙂

[vworpi]

Yeas, it's a 2D contour, keep tool down isn't set.

I've found that if I set high feedrate mode to "Always use high feed", and set the high feedrate to 24000mm/min, I can emulate a rapid movement. This alone has knocked an hour off the job. I dread to think what a less capable machine must run like with all these small 4th axis movements.

[engineguy]

@vworpi 

Odd toolpath for the Model, really needs 5 axis to get the correct shape of the Model.

However, looking at the Contour as cut with the "Keep Tool Down" set in the Linking Tab and also setting the direction to "Both Ways" then there are no Rapid movements from finish to start and back, as you are using a decent size tool at 16mm and it is only cutting a thickness of 5mm and only taking 1.5mm per pass then I think that may work for you, one pass Climb Milling then back using a Conventional Milling pass, then do a Finish Pass that will do Climb Milling for better finish. Might end up slower though as you would be doing both directions at feed speed 🙂

Just a suggestion, it all depends on your machine/work holding etc, etc, of course but worth a look maybe ??