How to use a ket cutter to surface underneath a flange

[VINK]

So I have this part that is going to have a KF Vacuum flange mill on it. The bottom side of the flange has a taper on it that I'd like to try and surface using a key cutter (actually I think it's a T-Slot cutter) that has 1/8" radii on either edge.

 

I've never tried surfacing underneath anything before....can you do it? Will Mastercam comp to the uppermost edge?

 

Thanks for all help

[VINK]

Thanks Colin,

 

I am still having an issue though. Although I selected the surface from the backside it wants to surface the top side. It's not clear to me how to select the bottom of the surface

[VINK]

Since the shape is ring like I am using a radial tool path. I am still new to the X interface and I don't even see arrows indicating which side is the normal.

 

I'll play with it a bit and see what I can wreck!

[Mike S @ S4A]

Now that's the spirit!!

...Colin's got you on the right track, hopefully your reseller's got some training options for you too...

as Colin said, "depending on which toolpath..."

you may want to look in the advanced settings/roll tool at surface edge behavior also...

[#Rekd™]

Hi Vink,

 

Turn your shading off and look for the arrows (normals).

 

John

[Fred from Université de Sherbrooke]

You can't use Radial toolpath to do a undercut. Only surf contour and flowline.

[Fred from Université de Sherbrooke]

...and you can use wireframe toolpaths too.

[VINK]

So I got the normals set correctly. Flowline ignores the flange and blows through it and Contour seems to want to do both sides of the surface! I set a containment but then contour decided to just to the side of the surface that is not what I want.

 

I appreciate all the help you guys are giving by the way.

[cobra95kev]

Can you post or e-mail a file?

[VINK]

I'll go ahead and post to the FTP if you guys got time....now to figure how to post to the FTP!

[Hardmill]

Just run it over to me, im right here at JPL

You can email it here if youd like.

 

 

PEACE

[VINK]

Okay, I'm officially lame and have to resort to hijacking my own thread...I am following the FTP upload instructions but when I drag the file from windows explorer to dump into the "X3_files" folder it prompts me to open the file that I am trying to save onto the FTP. Is this normal?