3d contour with arcs

[jlw™]

Gentlemen,

 

I'm at a point I've not come to in a while and can't remember how I overcame it.  I'm trying to create a 3d contour with the tool control at center.  Whenever I use filtering the arc flattens to G17XY plane.  You can tell from the picture what I want it to do.  When I let it linearize I get the path I want.  However, I really want to use arcs for this path.  I went into control def and arcs are supported in all 3 planes.

 

Any suggestions?

 

mg]

[Guest]

Use the Filter and turn on arcs for that plane

[jlw™]

[Rstewart]

Check Output 3D arcs? 

[crazy^millman]

Dumb question, but is the edge an arc?

[jlw™]

no, the edge is a straight segment.

 

I posted the code and the code is good but the backplot is wacky.  Verify shows it correctly as well.  Hmmm on backplot.

[jlw™]

Diggin up bones here.

 

I can not get this dang 3d arc box to stay checked to save my life.  New part style in the same family as when I originally posted this.  I want to run a 3d contour and get arcs.  What am I doing wrong here guys?

 

[Matthew Hajicek - Singularity]

You'll get cleaner code from a Wireframe toolpath.

[jlw™]

It is a wireframe path, "2D" geo driving a 3d contour.  I can't get the 3d arcs check box to stay checked.

[BenK]

It is a wireframe path, "2D" geo driving a 3d contour.  I can't get the 3d arcs check box to stay checked.

 

Kids these days. There is a group of paths called Wireframe. Right click in the operation manager, select Mill Toolpaths and go down to the bottom. 

[jlw™]

Will it allow me to use cutter comp?

[crazy^millman]

Diggin up bones here.

 

I can not get this dang 3d arc box to stay checked to save my life.  New part style in the same family as when I originally posted this.  I want to run a 3d contour and get arcs.  What am I doing wrong here guys?

 

 

Bug. I think 2018 finally fixes this issue.

[Matthew Hajicek - Singularity]

Will it allow me to use cutter comp?

 

Not in XY, but anything will let you use cutter comp in Z which is what will effect your surface, if I'm correctly understanding what you're trying to do.

 

Try Toolpaths, Wireframe, Swept 2D (you can still get there by right-clicking in the ops manager) :

 

%
O0000 (TOOLPATH GROUP-1)
(POSTABILITY 5-AXIS HAAS TR160Y TRUNNION)
(MACHINE GROUP-1)
(MASTERCAM - X9)
(MCX FILE  - T)
(POST      - MPPOSTABILITY_HAAS_TR160Y.PST)
(PROGRAM   - TOOLPATH GROUP-1.NC)
(DATE      - 2017.02.20)
(TIME      - 12:27 PM)
(T3   - .25 X .5 BALL 4-FLUTE HSV-SR-40250-BN - H3   - D3)
( - D0.2500" - R0.1250")
G00 G17 G20 G40 G80 G90
G91 G28 Z0.
N1
T3 M06 (.25 X .5 BALL 4-FLUTE HSV-SR-40250-BN)
G54 G17 G90
G00 A0. B0.
G01 G94 X-2.1429 Y0. S11340 M03 F833.
G43 H3 Z0.
M09
M74
M89
Z-2.0417 F51.1
G18 G02 X2.1429 I2.1429 K1.9167
G01 Y-.05
G03 X-2.1429 I-2.1429 K1.9167
G01 Y-.1
G02 X2.1429 I2.1429 K1.9167
G01 Y-.15
G03 X-2.1429 I-2.1429 K1.9167
G01 Y-.2
G02 X2.1429 I2.1429 K1.9167
G01 Y-.25
G03 X-2.1429 I-2.1429 K1.9167
G01 Y-.3
G02 X2.1429 I2.1429 K1.9167
G01 Y-.35
G03 X-2.1429 I-2.1429 K1.9167
G01 Y-.4
G02 X2.1429 I2.1429 K1.9167
G01 Y-.45
G03 X-2.1429 I-2.1429 K1.9167
G01 Y-.5
G02 X2.1429 I2.1429 K1.9167
G01 Y-.55
G03 X-2.1429 I-2.1429 K1.9167
G01 Y-.6
G02 X2.1429 I2.1429 K1.9167
G01 Y-.65
G03 X-2.1429 I-2.1429 K1.9167
G01 Y-.7
G02 X2.1429 I2.1429 K1.9167
G01 Y-.75
G03 X-2.1429 I-2.1429 K1.9167
G01 Y-.8
G02 X2.1429 I2.1429 K1.9167
G01 Y-.85
G03 X-2.1429 I-2.1429 K1.9167
G01 Y-.9
G02 X2.1429 I2.1429 K1.9167
G01 Y-.95
G03 X-2.1429 I-2.1429 K1.9167
G01 Y-1.
G02 X2.1429 I2.1429 K1.9167
G01 Z0. F833.
G49
M09
M74
M89
M05
G91 G28 Z0.
G28 Y0.
G00 G54 G90 X0. A0. B0.
M30
%

The only drawback I see is it's limited to zigzag; it doesn't have a one-way option.

[Brian Pallas]

I think it's the "Swept2R" Chook that will take a wireframe path and change it from zig zag to cutting in one direction.

[Thad]

I think it's the "Swept2R" Chook that will take a wireframe path and change it from zig zag to cutting in one direction.

 

You are correct! Swept2R is your friend   Just make sure you backplot your toolpath afterward. I've seen some weird results from time to time.

[jlw™]

 

now what?

[Matthew Hajicek - Singularity]

Maybe select the op before running the chook?

[jlw™]

so do i create a 2d op first?  can you email me a file?

[Matthew Hajicek - Singularity]

That's what I would presume.  Never used swept2r myself though.

[jlw™]

Can some one share an example of this?

[Matthew Hajicek - Singularity]

Okay, here you go.  Start with this file.

 

1. Make sure the operation is selected.

2. Hit <Alt>+<C> for C-Hooks.

3. Select and run Swept2R.dll

4. Uncheck "Rough passes".

5. Make sure "One way" is selected.

6. Click the green check.

 

[Matthew Hajicek - Singularity]

File didn't attach.  Trying again.

2D Swept Example.mcx-9

[Jayson Kramer]

So you know the Swept2R is the roughing chook for Swept 2D then there is Swept3D.

[jlw™]

This will output arcs and cc?

[Matthew Hajicek - Singularity]

Arcs yes, CC no.  You'd need 3D CC for it anyway since it's surfacing.  Motion in the example is in X and Z, stepover in Y.