ANGLED HOLE DRILLING ON A 4TH AXIS

[BOB BOURBON]

Ok I am drilling some holes on 38 degrees on the 4th axis. I am putting 4th axis on a sine plate and kicking it up. I got it programmed in mastercam and it backplots right. But when I go to post it out it says to select a axis paralell to x.

I have the part in the top view then rotated gview about y the right degrees. So I think it is seing the x axis running at a angle. Do I need to set the wcs different or what. Or can I even do this.

Usually I just program one drill point on x0. and set that in my machine over where the hole is supposed to be. and copy it however many rotations and just leave it on 0.0. But I am tired of doing that. Can someone help.

[John Summers]

A 4-axis post won't see the 38 degree angle. The post must make a rotation about X, then Y, if I understand your setup correctly. That's a 5-axis post. Do you have one?

[crazy^millman]

Well if you lied and used the WCS through the center of the 4th axis you might could make something work. However I would agree with John a 5 axis post would be your better approach. What you would do is strip out the Extra axis posting in the post, but then get posting that would allow you to do what you are after very easily without having to jump through any special hoops. I would contact your dealer and they should be able to point you in the right direction.

 

HTH

[BOB BOURBON]

I dont have a 5th axis post yet but I am working with my dealer on the wcs manipulation. So when or if i do figure it out I will let you guys know what i had to do. Thanks for your replies.

[Cad-Camr]

So is this a round part with holes around the OD or rectangular with holes on different faces?

[GoetzInd]

Hey Bob,

What company do you work at? A buddy of mine works at a shop in O'FALLON.

 

Mike

[BOB BOURBON]

I work at a place called planet tool and engineering.

 

This part is round and it has a chamfered edge around it with holes going through it tru to that chamfered edge.

like if you put a 45 degree chamfer around a tube and then put holes thru that chamfer tru to its angled face.

[Cad-Camr]

If I understand your set-up correctly you should be able to create a WCS named view using geometry of the hole created normal to the spindle (perp).

From there use transform rotate toolpath to get the rest of the holes. If you are prompted for Axis of rotation pickX normal to the machine. The fact that your part is at an angle shouldnt matter. Again Im assuming this is fairly straight forward ring of holes around the OD at 38 deg. Good Luck!

[BOB BOURBON]

That is what I did I know How to program it and use the transform toolpath. I guess my question is more of a post question I cant get it to post. It wont except it. It does everything right when you backplot and verify it. but when you go to post it. It wont recognize it.