Facing w/ x6

[Haas ST40]

I am still a little green with MasterCam, and have a question about facing.

 

When I create a facing toolpath, I want it to complete 2 passes, where the 1st pass leaves .020 stock and the 2nd pass taking it to 0.0.

 

The only way I have found to do this is with 2 toolpaths. Is it possible to do this in a single toolpath?

 

Thanks.

[MikronGuy]

use depth cuts and keep the tool down so it does not retract but changes the z depth at the end of the first depth pass

[Haas ST40]

I see no options for depth cuts in the toolpath parameters or the face parameters.

 

I don't use the stock option (not sure if that matters) as I am only concerned w/ geometry so I use the "select points" option.

[Clarence L Cook]

Are you talking about a lathe facing operation?

 

If so, what I do is select two points with one at the origin and the other at diameter and about +.05". Then I check rough stepover and make sure that finish stepover is check and has a value, in your case .020".

 

That should generate a roughing pass and a finish pass in one operation.

[Haas ST40]

Still no luck... The rough step over is selected as well as the finish step over. Finish step over is set to .020 and below is the code generated.

The line in red should read Z0.020 which is why I added the Z0.020 after it.

 

Thanks

 

 

%

O36001

(PROGRAM NAME - M- 2136 ROLLS)

G20

(TOOL - 1 OFFSET - 1)

(FACING TOOL - 80 DEG. INSERT - CNMG-432)

( CREATE TWO POINT FOR STOCK BOUNDRY )

G00 T0101

M8

G97 S187 M4

G00 G54 X10.2058 Z0. Z0.02

G50 S1000

G96 S500

G99 G01 X2.6 F.008

G00 Z.1

X10.2058

Z0.

G01 X2.6

G00 Z.1

M9

G28 U0. W0. M5

T0100

M30

%

[RayD]

You need to define stock (Z+ stock) or Use the "Select points" in the Lathe Face parameters.

 

The toolpath wont cut air, you need to define that there is material for it to cut

[Haas ST40]

I use the select points option.

 

I can do this with 2 toolpaths, I am just wanting to see if it can be done in a single toolpath.