5 ax, axis reversal issue

[DaveR]

I got a rotary issue resolved, then discovered a new one I can't figure out

 

Machine is a Haas Vf2, with a TR110

 

have a proven post, mach and control def so there should not be any issues here but there are

 

I have a file with six drill points, one center, one on each side and one in the x-y- quadrant (the last hole listed in the code)

 

The trunion platter sits 3.1" above the center of rotation, the geometry I have about 6.3" above center of rotation in the software

 

The trunion table appears to be moving correctly (in real life) so far but the y axis looks reversed, tries to come down behind my trunion table (opposite side from the platter)

 

also the last hole in the code...the one programmed from tplane =top

 

if I post it alone I get this

 

 

 

 

%

O0001 ( PROGRAM - OP-1 )

( DATE - 27-02-11 TIME - 21:35 )

G20

G0 G17 G40 G49 G80 G90

G0 G28 G91 Z0.

( 1/4 DRILL TOOL - 1 DIA. OFF. - 1 LEN. - 1 DIA. - .25 )

M11

M13

T1 M6

 

(correct position in x, y)

 

G0 G54 G90 X-1. Y-1. B0. A0. S3667 M3

M10

M12

G43 H1 Z6.

G81 G98 Z3.75 R5.1 F8.8

G80

M5

G0 G28 G91 Z0.

M30

%

 

 

which is correct as far as position in x-y-

 

 

if I post it with the other holes I get this

 

(it's the last hole listed)

 

See how it reversed X?

 

and in the other holes it appears the Y direction is wrong?

 

 

 

 

%

O0001 ( PROGRAM - OP-2 )

( DATE - 27-02-11 TIME - 21:36 )

G20

G0 G17 G40 G49 G80 G90

G0 G28 G91 Z0.

( 1/4 DRILL )

( TOP - A0B0 )

M11

M13

T1 M6

G0 G54 G90 X0. Y.002 B0. A0. S3667 M3

M10

M12

G43 H1 Z9.875

G81 G98 Z8.625 R8.975 F8.8

G80

( NEW BACK - A90 B0 )

M11

M13

B180. A-90.

M10

M12

 

(this should be a -Y as the trunnion is tilted toward the operator and sits above the rotary center line by 6.3")

Y6.375

Z2.752

G81 G98 Z.752 R1.852 F8.8

G80

( RIGHT - A90 B-90 )

M13

B90.

M12

X.002

Z2.75

G81 G98 Z.75 R1.85 F8.8

G80

( NEW FRONT - A90 B-180 )

M13

B0.

M12

X0.

Z2.748

G81 G98 Z.748 R1.848 F8.8

G80

( LEFT - A90 B-270 )

Z2.75

X-.002

M13

B-90.

M12

G81 G98 Z.75 R1.85 F8.8

G80

Z6.

 

 

(should be x-1. y-1. as programmed)

X1. Y-1.

M11

A0.

M10

G81 G98 Z3.75 R5.1 F8.8

G80

M5

G0 G28 G91 Z0.

M30

%

 

 

So freaking lost here.

 

LOL

 

I know this is probably something simple but I have been banging away at this all day and just gotten nowhere.

 

Any ideas appreciated.

 

Dave

[gcode]

have you tried using one 5x drill tool path instead of multiple toolplane controlled toolpaths

[Jayson Kramer]

is this a custom made post? if so have you tried the 5x trunion post that came with the install?

 

Also are you doing like Gcode said or are you setting a plane for each one?

[DaveR]

A plane was set for each face

 

Yes I tried the stock post the rotary moves are opposite of what they should be.

 

I got those corrected now discover this x/y issue.

 

I'm figuring that even if the 5 ax drill works then my x and y will still be off if I do 5 ax positional right?

 

I will try the 5 axis drill thing later when I have time, never done that before though I'm new to the 5 axis world anything special to know or it it pretty intuitive?

[gcode]

if I do 5 ax positional right?

 

 

how are you building your tool planes..

I get the best results by starting with the 6 default plane

and using the plane rotate commond to get the values I need

[DaveR]

I did not build the ones in the file, it was Trevors.

 

I don't know what to make of this.

 

 

 

I post out three hole locations in one drill op (the last in the program), all top plane. All in minus Y space. It looks as it should as far as hole locations.

 

( 1/4 DRILL TOOL - 1 DIA. OFF. - 1 LEN. - 1 DIA. - .25 )

M11

M13

T1 M6

G0 G54 G90 X-2. Y-2. B0. A0. S3667 M3

M10

M12

G43 H1 Z8.

G81 G98 Z6. R7.1 F8.8

G80

X-.5368 Y-8.3584

Z6.

G81 G98 Z4. R5.1 F8.8

X.5376 Y-16.6773

G80

M5

G0 G28 G91 Z0.

M30

%

 

 

 

If I post out the whole program I get this....check out the last three hole locations....all the same as the above but X and Y are reversed, or the Y has changed signs?

 

I just cant figure that out. It back plots fine.

 

 

---------------------------

( LEFT - A90 B-270 )

M13

B-270.

M12

G81 G98 Z.75 R1.85 F8.8

G80

Z8.

X-2. Y2.

M11

A0.

M10

G81 G98 Z6. R7.1 F8.8

G80

X-8.3584 Y.5368

Z6.

G81 G98 Z4. R5.1 F8.8

X-16.6773 Y-.5376

G80

M5

G0 G28 G91 Z0.

[gcode]

The B axis is still at B270

 

The B0 A0 toolpaths are rotated to respect the B270 table position..

This is a weak link in the post... thre is no way I know of to force the B to 0

except force a toolchange..

 

The code is correct and will make a good part... but it's dangerous

because the operator will be confused and may put a B0 command in by hand.

I've seen this many times..

 

M13

B-270. <--------------------------------------------- previous drill op

M12

G81 G98 Z.75 R1.85 F8.8

G80

Z8.

X-2. Y2.

M11

A0. <---------------------------------------------- A move but no B

M10

G81 G98 Z6. R7.1 F8.8

G80

 

 

 

[DaveR]

Ahhh

 

 

You got it!

 

 

Damn I did not think of that I was so focused on the locations I did not look at the rotary moves I just don't think in multi axis yet

 

 

Driving me nuts!

 

thank you!

 

 

 

 

Dave