Mazatrol Nexus - EIA - Bar Pull and Parting-off?

[Isak Andersson]

Hi. I am trying to make a macro to make the bar-pulling and parting-off operations a bit more optimized and automated. I based my macro on the code example in this post:

Need lathe EIA example with live tools and subspindle

Recently purchased a lathe with Fusion 640T control. I'm a Fanuc guy and I can't find any information in our EIA manual about codes for either live tools or subspindle work. Can someone please share an example program that will get me going? It will be greatly appreciated!

www.practicalmachinist.com

I have a few questions about the M-Codes:
1. What does M360 do? The example says (S.S ORIENT CLAMP) but in the M-Code List its Function is left blank.
2. Same thing with M359.
3. In M502 (MAIN AND SUB SYNC) the program locks up. Do I need a different M-Code or do I need to prepare it with other M or G-Codes?

The machine is a QT Nexus 250-II MS




This is my macro so far: (The variables will be replaced by arguments later)

#2 = -522.5 (B = W AXIS PART LOCATION)
#22 = 49. (V = PART LENGTH + PARTING-OFF TOOL WIDTH + FACE CUT*2)
#26 = 48.5 (Z = PARTING-OFF Z LOCATION)
#24 = 56. (X = PARTING-OFF X LOCATION START)
#21 = 19. (U = PARTING-OFF X LOCATION END)
#9 = 0.12 (F = FEED RATE)
#19 = 130. (S = CUTTING SPEED)

T0404.04(GROOVE OUT 3. D)
M306 (SUB OPEN)
G99 G18 G0 G40 G28 U0.
G0 Z[#22 - #26]

M360 (SUB ORIENT CLAMP ?)
M319 S250 (SUB SPINDLE ORIENT S=DEG)
M16 (MAIN SPINDLE ORIENT)
G0 B[#2 + 2.] (RAPID 2MM IN FRONT OF PART)
G1 G98 B#2 F500. (FEED TO GRAB PART WITH SUB)
M307 (SUB CLOSE)
G98 G4 P500
M206 (MAIN OPEN)
G98 G4 P500
G1 B[#2 + #22] F1000. (FEED PART OUT)
G98 G4 P500
M207 (MAIN CLOSE)
M502 (MAIN AND SUB SYNC - THIS LOCKS THE MACHINE. WHY?)
M359 (?)

G96 M3 M8 S#19 F#9
G0 Z[#22 + #26]
G0 X#24
G1 X#21
G0 X#24
G28 B0.
G28 U0.
M5 (MAIN SPINDLE STOP)
M505 (MAIN AND SUB SYNC CANCEL)

M99 (RETURN TO MAIN PROGRAM)

 

[chad883]

Hi. I am trying to make a macro to make the bar-pulling and parting-off operations a bit more optimized and automated. I based my macro on the code example in this post:

Need lathe EIA example with live tools and subspindle

Recently purchased a lathe with Fusion 640T control. I'm a Fanuc guy and I can't find any information in our EIA manual about codes for either live tools or subspindle work. Can someone please share an example program that will get me going? It will be greatly appreciated!

www.practicalmachinist.com

I have a few questions about the M-Codes:
1. What does M360 do? The example says (S.S ORIENT CLAMP) but in the M-Code List its Function is left blank.
2. Same thing with M359.
3. In M502 (MAIN AND SUB SYNC) the program locks up. Do I need a different M-Code or do I need to prepare it with other M or G-Codes?

The machine is a QT Nexus 250-II MS




This is my macro so far: (The variables will be replaced by arguments later)

#2 = -522.5 (B = W AXIS PART LOCATION)
#22 = 49. (V = PART LENGTH + PARTING-OFF TOOL WIDTH + FACE CUT*2)
#26 = 48.5 (Z = PARTING-OFF Z LOCATION)
#24 = 56. (X = PARTING-OFF X LOCATION START)
#21 = 19. (U = PARTING-OFF X LOCATION END)
#9 = 0.12 (F = FEED RATE)
#19 = 130. (S = CUTTING SPEED)

T0404.04(GROOVE OUT 3. D)
M306 (SUB OPEN)
G99 G18 G0 G40 G28 U0.
G0 Z[#22 - #26]

M360 (SUB ORIENT CLAMP ?)
M319 S250 (SUB SPINDLE ORIENT S=DEG)
M16 (MAIN SPINDLE ORIENT)
G0 B[#2 + 2.] (RAPID 2MM IN FRONT OF PART)
G1 G98 B#2 F500. (FEED TO GRAB PART WITH SUB)
M307 (SUB CLOSE)
G98 G4 P500
M206 (MAIN OPEN)
G98 G4 P500
G1 B[#2 + #22] F1000. (FEED PART OUT)
G98 G4 P500
M207 (MAIN CLOSE)
M502 (MAIN AND SUB SYNC - THIS LOCKS THE MACHINE. WHY?)
M359 (?)

G96 M3 M8 S#19 F#9
G0 Z[#22 + #26]
G0 X#24
G1 X#21
G0 X#24
G28 B0.
G28 U0.
M5 (MAIN SPINDLE STOP)
M505 (MAIN AND SUB SYNC CANCEL)

M99 (RETURN TO MAIN PROGRAM)

The program you used as an example is for picking off a milled part. If you are picking off a round part you can eliminate some of the code. The red is not needed. M360 tells my machine (at least 2 generations older than yours) to clamp the sub spindle C axis when positioned. M319 Sxxx tells sub to position to 250 degrees. M16 orients main to 0 deg. M359 unclamps sub C axis.

I just ran this last week

T1212G0G40G99G18(CUT-OFF)
M306
M358
G99G18
G28U0.
G0Z0.
G0B-16.7
G1G98B-17.933F50.
M307
G4P0500
M6
G4P0500
G1B-14.975
G4P0500
M7
M502

T1212G0G40G99
M8
G96M3S700
G0X1.4Z.18
G1X-.03F.008
G0X3.0
G28B0.
G28U0.
G0Z7.
M5
M505
M1

 

[Isak Andersson]

I just ran this last week

I tried your program. Same issue. It gets stuck on M502. Any ideas why?

 

[chad883]

I have not ran a Nexus control so I have nothing. You said you are trying to optimize the pull and cut off. Do you have an example of a pull and cut off that works on that machine?

 

[Isak Andersson]

Never mind, I figured it out. It needed M511 (Synchronized rotation with main as master) instead of M502. I assume M512 (Synchronized rotation with the sub as master) would work as well but I don't know how.