topic Re: Ramping height for 3D contour in Machining Discussions Forum

Ramping height for 3D contour

Anonymous — Tue, 05 Apr 2016 07:13:00 GMT

Hello there,

I have encountered something I am kind of desperate about. When I use 3D Contour and set ramping to "plunge", no matter what "Ramp Clearance Height" I set I always get the same height from which the tool starts the first plunge to cutting. I am enclosing a picture so you know what I am talking about.

What are my options to make the tool start plunging higher above the material?

I can kind of do that using lead-in diameter but that's actually something I do not want to.

Thanks in advance!

Re: Ramping height for 3D contour

Laurens-3DTechDraw — Tue, 05 Apr 2016 08:00:55 GMT

What are your heights set to?

Re: Ramping height for 3D contour

Anonymous — Tue, 05 Apr 2016 08:05:18 GMT

Clearance height:
10mm from retract height

Retract height:
30mm from stock top

Top:
0 from stock top

Bottom:
0 from model bottom

Re: Ramping height for 3D contour

Laurens-3DTechDraw — Tue, 05 Apr 2016 08:13:09 GMT

Safe distance will help.

@jeff.walters or @dave.anderson Can you explain why the changing of the ramp clearance height doesn't do anything?

Re: Ramping height for 3D contour

Anonymous — Tue, 05 Apr 2016 08:22:18 GMT

Safe distance? Where is that? I must be blind! Spent quite some time trying to solve this WITHOUT having lead-in radius. I am looking forward to having this solved. Thanks in advance!

Re: Ramping height for 3D contour

Laurens-3DTechDraw — Tue, 05 Apr 2016 08:24:25 GMT

On the linking tab. Just below preserve rapid movement.

Re: Ramping height for 3D contour

Anonymous — Tue, 05 Apr 2016 08:33:43 GMT

The problem, might be the fact that safe distance was set lower than then demanded ramp height? .... it works for other operations though. Well, safe distance helps!
Thanks!

Re: Ramping height for 3D contour

jeff.walters — Tue, 05 Apr 2016 14:36:18 GMT

The safe distance is a “zone” around the part where the tool isn’t allowed to rapid. If you do an offset surface where the tool is coming into the part you should see that it’s stopping when the tool hits the Safe Zone and then should be feeding from there.

Re: Ramping height for 3D contour

Laurens-3DTechDraw — Tue, 05 Apr 2016 14:52:16 GMT

@jeff.walters I get that.

But what should the ramp clearance height value box do?

Re: Ramping height for 3D contour

jeff.walters — Tue, 05 Apr 2016 18:07:23 GMT

Got it!! It should be stopping at the higher of the two. But obviously it’s ignoring the ramp clearance height. I have reported this on ticket CAM-3763