Dynamic Peel issue

[jeff]

I love peel mill, but when I'm cutting 1 wall, and running the end of the toolpath off the end of the stock it always leaves a post sticking up. 

That post either snaps the tool, or snaps off the part and deforming it a little bit.

How do you guys deal with situations like this?

1/2" endmill, 1.1" deep leaves a tall post, I could take shallower cuts but that would increase my cycle time by a ton.

Pic is Front View.

 

[Leon82]

I make my machining zone the part rectangle.

Then would add 2 lines in your removal area and chain them as avoidance with the remaining outside of the part and use dynamic high speed. May have to break the outside profile so you can make a full chain

This has worked good for me and having parts of the same chain in machining/avoidance doesn't seem to make an error.

 

Hopefully I explained correctly

[Leon82]

Whatever you don't want to cut make it the same chain as the machining zone.

[Leon82]

Crude drawing

[sweeper]

I am guessing we get fries with that explanation. jk

[Leon82]

9 minutes ago, sweeper said:

I am guessing we get fries with that explanation. jk

Lol , they gone now

[nickbe10]

Try 2D High Speed instead of Peel mill.

Use your avoidance boundary to force the direction of cut you want

[htm01]

couldn't you rotate the piece 180 and the peel mill would start from off the piece

[jeff]

1 hour ago, htm01 said:

couldn't you rotate the piece 180 and the peel mill would start from off the piece

I just might.  Can't believe I didn't think of that yesterday.

[jeff]

14 hours ago, nickbe10 said:

Try 2D High Speed instead of Peel mill.

Use your avoidance boundary to force the direction of cut you want

That's what I went with. But I might try peel mill towards the wall entering from the open area

Thanks guys!

[nickbe10]

45 minutes ago, jeff said:

That's what I went with. But I might try peel mill towards the wall entering from the open area

In situations like this I think I get more "bang for the buck" using 2D high Speed because it will deal with any corners in a "pocket" situation(albeit an open pocket here) more effectively, whereas Peelmill is a far simpler "repeating" toolpath, which also has its place, horses for courses and all that.....and of course personal preference....

[Colin Gilchrist]

Hi Jeff,

I agree with what others have said: Peel Mill is generally designed to cut Slots in material.

I'd recommend learning the other HST tools and techniques, as they serve you far better in situations like this. They adapt more easily to odd contours and shapes.

There are some new "chaining" tools for telling Mastercam "what is stock", "what is the part", and "what sides are open (air chaining)".

Just my .02₵

[mkd]

On 9/28/2017 at 0:49 PM, jeff said:

Pic is Front View.

 

 

so from top view, you're facing up yo the shoulder? If so i would think blend is an easy slam-dunk. I probably misinterpreted.

[Ewood42]

On 9/29/2017 at 7:11 AM, Colin Gilchrist said:

Just my .02₵

Pennies come in 1/50th of a cent denominations now?? Geeze, I thought they were useless before...

[jeff]

On 9/29/2017 at 6:18 PM, mkd said:

so from top view, you're facing up yo the shoulder? If so i would think blend is an easy slam-dunk. I probably misinterpreted.

Yes going from right to left along a shoulder on the right, and the left side is open ended. I don't think I've ever used Blend but I'll try it next time.

[crazy^millman]

Opti-Rough with the correct boundary would work in this situation also.

[mkd]

1 hour ago, jeff said:

Yes going from right to left along a shoulder on the right, and the left side is open ended. I don't think I've ever used Blend but I'll try it next time.

All that is required for geometry are two lines. Cutter comp will plunge off the ledge and keep away from shoulder.

 best to be running along the shoulder,  with this path, as stepover are at abrupt 90s