2D pocket: mill cuts part of the body which should not be touched

[Anonymous]

Hello,

I'm trying to mill a pocket with the 2D Pocket feature but the mill also cuts parts of the body away.

I also tried it with 3D Pockets but without success.

What is the correct way to define the pocket so that the mill doesn't cut the body?

In the first picture i marked the pocket which i want to mill. But when i select this shape no toolpath is created which is ok.

When I select the bottom surface of the pocket a wrong toolpath is created which mills away a part of the body:

I also tried to select edges instead of surfaces but i can't get it to generate the correct toolpath. Also changing the diameter of the mill makes no difference.

The only workarround i have so far is to remove the cut out on the right side then create the program only for this pocket and copy paste it to the rest of the program which is not a very nice solution.

Thanks in advance for any help!

Chris

[HughesTooling]

It will be a lot easier to show you how to do this if you upload the model. From the file menu pick export and save as an F3D file then attach.

Thanks Mark

[Anonymous]

Hello Mark,

thanks for the reply.

I attached it as F3Z hope that is ok.

Chris

[j_cavender]

i tried to open it and take a look and it wouldnt open.

[HughesTooling]

I think most of the problem is down to the Helical Ramp clearance.

I broke the links to the external design and I've attached the f3d file. Look at the ramp settings and how I've selected the bottom height by selecting a face. I think I'd want to use a 3d op for this because as you've found the 2d ops don't look at the 3d model they just machine to the curves!

Mark

[HughesTooling]

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@j_cavender wrote:

i tried to open it and take a look and it wouldnt open.

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You need to upload into a project using the data panel for FZ3 files.

Mark

[j_cavender · Accepted solution]

i got a working path on that area i went around and picked the geometry to make it a closed pocket. its kinda of a funky ramping path though. it seemed like it wanted to do it as an open pocket though.

[Anonymous]

Thanks a lot J.

That was the trick to move the bottom layer down - good idea!

Cheers

Chris