Peel Mill Help

[gcode]

I'm trying to use a peel mill type toolpath to rough out a closed slot.

Picture a U

1.25" wide.. the legs are 1" long and the end is a full radius..

the open end is the edge of the stock

 

I want to use a 1/2" tool and its kicking my butt.

I can chain the 2 straight lines and it works great.. but doesn't rough the closed radius.

I can fake it by putting another full radius on it and using high speed area mill

but that cuts a ton of air.

Is there an efficient way to do this??

[neurosis]

If you dont mind creating a very small amount of construction geometry why not just use 2d dynamic core?

[gcode]

I tried that but the tool path was no good.

It did not peel the stock out, it contoured the slot all the way tot he center of the arc and step out from there

[neurosis]

I tried that but the tool path was no good.

It did not peel the stock out, it contoured the slot all the way tot he center of the arc and step out from there

 

 

I hope that I am not misunderstanding you, but is this what you are looking for?

[gcode]

Yes

I drew 2 rectangles then trimmed the open end of the slot out of one rectangle.

The tool's first pass went all the way down the C/L of the slot , then stepped out to rough the slot

You've got the slot closed and its doing what I want.

I'll give that a try..

Thanks

 

 

[neurosis]

Try using the square as profile 1 and use the entire horse shoe shape as profile two. That will give you what you want. Green as profile and blue as other.

 

I usually cheat and just close the end of the slot and use the same geometry twice for the two profiles but I dont know if that is a good standard practice to use..

[gcode]

Weird..

I got it working the way I want it.. and the geometry is basically the same as what failed earlier this afternoon.

I'd tried a jillion things with the toolpath, changing from blend to peel to core to area etc etc.

I'll bet that if I'd just deleted it and rechained with a fresh toolpath, it would have worked correctly.

[MIL-TFP-41]

just saw this post the other day.....maybe a different way...

http://www.emastercam.com/board/index.php?showtopic=32976