milling a boss on a round surface

[krystof]

I'm trying mill a 1.125 dia. boss on a 2.5 dia. surface. Project will not work and I can't get pencil to work for me any suggestions.

thank you

krystof

[Trevor Bailey]

Project the needed geometry onto the surface and use CONTOUR as you would a 2d toolpath. Depending on what Version you are running, MC will automatically pick up that it is a 3d contour. If you are running V7, make sure your your final depth is set to incremental and "0" depth.

[postman]

Trevors idea will work as long as the surface in question is perpindicular to the tool axis. However, if you need to keep the tool tangent and checked to a irregular of tilted surface you will need to use project. The c/l of the tool needs to be able to see the surface along the tool axis. You may need to extend the surface if the tool radius is >= .625 in this case.

[krystof]

We tried that and it didn't give us what we wanted. I download a mc8 file called boss and we want to keep a round dia. on top. We would like to take a .750 dia. ballnose tool and run around it, the we are doing it now is using a smaller ballnose tool and going around it.

Thanks

krystof

[Trevor Bailey]

I have placed a file, boss_rev1.mc8, on the FTP site. You will see what I mentioned earlier will work. The file should be self explainitory. If you have any more questions, please let me know.

Jay, I forgot what version I was in and put a .MC9 file of the same name in the directory. Could you please erase it?

Thanks.

[cadcam]

Hey Trevor you got it.

i copied so i could look at it then removed from the FTP..

Hope all is well.

How is Buss?

[Trevor Bailey]

Jay, fortunately, everything is going well for this time of year and the new year looks even better. If I have not told you yet, I hope you and yours are having a great Holiday Season.

[Guest CNC Apps Guy 1]

So Trev,

WHat are you gonna do when @Home dies in February? You have something else lined up?

BTW, I hope you have a Merry Christmas if I do not talk to you before then.

[Trevor Bailey]

I got a meesage the other day saying that Cox has come to some agreement with Excite and service will not be enterupted. We'll see. I do not know what I would do without my cable!!!!!

Merry Christmas to you also James. I am planning a ski trip in Jays backyard at Mt High. Maybe we can all get the families together for a day.