3D pocket clearing

[emre_sahin9PU3F]

Hi,

"I'm creating a program for my part using the 3D roughing command. The tool rotates around the stock twice, and it makes unnecessary empty passes in the air. I also checked it on the machine. After entering the material, it makes one empty pass, and then it re-enters the material. Why doesn't it start and rough in a single motion?

 

[Laurens-3DTechDraw]

This could be because of your containment settings. But hard to judge without looking at the actual file.

[emre_sahin9PU3F]

I attacehed this file

[programming2C78B]

All I had to do was set your Stock contour properly and use a None boundary. 

[emre_sahin9PU3F]

Did you try it yourself? I did what you said and it didn't work. Did you review my file? If you want to review it, you will see and understand what I mean.

[programming2C78B]

yes otherwise why would I say it? The resulting toolpath is 3 minutes faster. 

you could also just program the outside as a simple 2D contour with a 1.7mm ramp height. Much simpler and faster.

[emre_sahin9PU3F]

Could you send the file?

[seth.madore]

Here's your file back. Your toolpath was 19min, the improved one is a bit under 10.

[programming2C78B]

I got it down to around 7 🙂

[emre_sahin9PU3F]

Hi @seth.madore ,

I think I expressed it wrong in explaining exactly what I want. I'm sorry. In the file you sent me, I want to process the outside of the cylinder stock. I'm enlarging the stock. The problem starts when I want the entire tool to go down to the bottom of the part. The tool makes 2 turns around the part. 1 turn is wasted. I used the ramp method after your program. It makes one turn around the outermost part of the part. But in the rough program, it makes 2 turns and one turn is wasted. I hope I could explain what I want. I kindly ask you to examine the rough and ramp programs while machining the outermost part of the part?

[emre_sahin9PU3F]

Thank you for your help. I will send you a file. Can you examine the rough and ramp tool paths? While turning the outermost part, the rough program makes 2 turns. 1 turn returns empty. While turning the outermost part in the ramp program, it turns in one turn as it should. The rough program should finish by making a single turn while turning the outermost part. For example, if I select the same outer surface in the 2.5 axis contour program, it will process the part without turning 2 turns.

[emre_sahin9PU3F]

Hi,

If you examine the tool paths in the nx program, you can understand better. You can examine the rough tool paths in the powermill webinar.



https://www.youtube.com/watch?v=Lsdx1kN5G9I
https://www.youtube.com/watch?v=Nbo9yw_V-dU
https://www.youtube.com/watch?v=-DKLVVhbDqM

[emre_sahin9PU3F]

Hi,

If you examine the tool paths in the nx program, you can understand better. You can examine the rough tool paths in the powermill webinar.



https://www.youtube.com/watch?v=Lsdx1kN5G9I
https://www.youtube.com/watch?v=Nbo9yw_V-dU
https://www.youtube.com/watch?v=-DKLVVhbDqM

[Laurens-3DTechDraw · Accepted solution]

I've edited the toolpath to be exactly like the Cavity mill in the PART-1 Video.
I removed the Machining boundary and turned on Rest Machining. If you don't have that on, the system will think there is an infinite amount of material and, therefore, do the extra pass around the outside because it needs to remove all of it. If you use Rest Machining it will know how much material there really is and produce the toolpath you want.

[emre_sahin9PU3F]

Hi @Laurens-3DTechDraw ,

Finally someone who understands what I want 😉 . Thank you for your help.