Need Help!- Surface to Surface Filleting and Trimming

[cowpoke]

MasterCam Version 9

Have been trying to fillet the edges of the attached part and can only get it complete to the shown stage.

Using surface/surface fillet with trim surfaces enabled, but the upper flat surface does not trim. Could not get the 2 surfaces to fillet in a single operation and had to use pick a pair and work my way around the contoured part to obtain the shown result.

Also have been trying to surface/surface trim the 2 protruding surfaces at the part pointed end but no success there either.

Then tried surfacing the part as drawn but I keep getting a "self intersecting" message. Followed the prompts to change color of the intersection but never see it show up on the drawing.

Would really appreciate someone taking a look and give me some guidance as to what I am missing and doing wrong. Feel like I am close but just can't get over the hump.

TIA,

cem

[tstom]

Not at my MC computer today but make sure both your surface normals are facing the same way

[cowpoke]

Checked the norms and had 2 reversed. Flipped the two but still get the message of self intersecting surface.
I tell it to change the color when asked but can never see anything change color on the screen.

[Superman]

Checked your file

Problem area is in the 2 tight rad " fingers"

Turn on shading , you can see the swept radius fillets have "top hats" ( these are the self-intersecting surfaces )

Remedy
Extrude your profile , before filleting the top face edges ( you may have problems filleting this particular area due to the actual geometry )

Extruding will give you a solid block, as a starting point

[cowpoke]

Extruding and then filleting the solid worked like a charm. See attached.

Can you suggest a strategy for surfacing this. I get to a point in solid surfacing where I am asked to select a drive surface but can find nothing that will highlight and select.

My first attempt at surfacing a solid.

Thanks,

cem

[Superman]

As a beginner, create surfaces from solid

1- change color and level
2- <create><surfaces><next menu><from solid> ( solids=Y faces=N ) select the solid <done>
3- turn off level 1
4- select the surfaces now created that make up the filleting part for the surfacing op


BTW should you be using a Radius form tool (RAD MILL) for this operation ?

[cowpoke]

Hi Steve,
Think I have it.
Thank you so, so much for your help.
Will let you know how it turns out.
cem