Dynamic Work Offset Mazak

[Todd Mann from Fastech]

Ok all you Mazak Variaxis guys! I need to help with the Dynamic Work Offsets! Do I want to use G54.2, G68.2 or G54.4?

[robk]

We use G54.2P_ on our Variaxis' 730 with Matrix control.

 

Here is a sample;

 

N34 T02 T03 M6

#3901 =#4114

G80 G17 G40 G49 G94 G98 G90 G20

G0 G91 G28 Z0.0

G28 X0.0 Y0.0 C0.0

G28 A0.0

G90

M46 (A-AXIS UNCLAMP)

M43 (C-AXIS UNCLAMP)

(T2 - T02_1.00_CERAMIC__ALTER_RAD)

()

(******)

(******)

M33 (LASER ON)

/7 G65 P9862 B1. T2 S3000

G4

#160002=0.

G4

G65 P9862 B2. D02 I[1.00/2] E.03 Q.375 Z.1875 S3000

G4

#160002=0.

G4

G65 P9863 T02 H-.01 S3000 (TOOL LENGTH CHECK)

M34 (LASER OFF)

G91 G28 Z0.

G90

(******)

(******)

M1

(CORNER_ROUND_BOTT_I)

S9897 M3

()

(LEAVE .060 STK. ON SKIN)

()

G0 G54.1 P1 X.2439 Y-4.1622 A-88.3159 C64.6191

G54.2 P1

G43 Z12.1251 H2

G0 G90 X.2439 Y-4.1622 A-88.3159 C64.6191

Z10.1251

G1 Z9.9296 F146.

X.2011 Y-4.1662 Z9.9221

X.1597 Y-4.1776 Z9.9148

X.1209 Y-4.1962 Z9.9079

X.0859 Y-4.2214 Z9.9017

X.0557 Y-4.2523 Z9.8964

X.0312 Y-4.2881 Z9.892

X.0132 Y-4.3277 Z9.8888

X.0023 Y-4.3698 Z9.8869

X-.0012 Y-4.4133 Z9.8862

G93 X-.0013 Y-4.4309 C64.6183 F8276.365

X-.0012 Y-4.4485 C64.6181 F8281.29

Y-4.4662 C64.6176 F8281.257

Y-4.4838 C64.6172 F8281.257

Y-4.5014 C64.6168 F8276.595

Y-4.5191 C64.6164 F8281.264

Y-4.5367 C64.616 F8281.263

Y-4.5543 C64.6155 F8281.264

Y-4.572 C64.6151 F8276.567

X-.0013 Y-4.5896 C64.6142 F8281.024

X-.0027 C64.6057 F71544.319

X.0213 Y-4.6503 C64.7592 F2077.641

X.0445 Y-4.7105 C64.9379 F2045.564

X.0669 Y-4.7701 C65.1414 F2015.645

X.0887 Y-4.8286 C65.3696 F1986.596

X.1097 Y-4.8857 A-88.316 C65.6207 F1964.963

X.1299 Y-4.941 C65.8942 F1945.177

X.1495 Y-4.9942 C66.1894 F1928.151

X.1684 Y-5.045 A-88.3161 C66.5052 F1914.475

X.1866 Y-5.093 C66.8405 F1904.266

.

.

.

.

.

X-.2753 Y-5.2226 A-88.3166 C-85.8055 F2113.451

X-.2817 Y-5.2396 Z9.5261 A-88.3167 C-86.2032 F2161.759

X-.2864 Y-5.2518 C-86.5977 F2216.985

X-.2892 Y-5.2592 A-88.3168 C-86.9861 F2280.266

X-.2902 Y-5.2616 A-88.3169 C-87.3654 F2351.414

G94 X-.2513 Y-5.2659 Z9.5293 F146.

X-.2137 Y-5.2761 Z9.5336

X-.1782 Y-5.292 Z9.5387

X-.1457 Y-5.3133 Z9.5445

X-.1171 Y-5.3393 Z9.551

Z9.7615

G0 Z12.1615

G54.2 P0

G91 G28 Z0.

G91 G28 X0. Y0. A0. C0. M05

G00 G90 G54.1 P1 X8. Y-15.

M00

#3901 =1 (FORCE SEQUENCE #1 INTO THE PARTS COUNTER)

M30

%

[Todd Mann from Fastech]

What happens when you want to use high speed smoothing? (G5 P2)

[robk]

We use G61.1, but without the G5P2...

According to the manual you can not use G61.1, G61.2, G5P0, or G5P2 when G54.2 mode is active... The manual is wrong (at least about G61.1). With software updates we are running G61.1 with G54.2 active. Contact your Mazak app. guy to find out if it applies to G5P2 as well.

[Todd Mann from Fastech]

My post has the g61.1 in the mis. values and it hak k =?

[robk]

Sorry Todd, but I don't use Mastercam as my programming software. Somebody else will have to jump in or maybe you should contact Jeremy or Joe on the forum here. Either one will most likely be able to help you.

[Joe788]

Todd, the K value is to adjust "accuracy."

 

K70 is default, and a K value is not required.

 

So if you just call "G61.1" it's the same as calling "G61.1,K70"

 

I don't know which Variaxis you have, but the machine should cut dead nuts accurate with just "G61.1". I haven't needed to go above K70. For roughing where you have plenty of stock and don't want to slow down very much in the corners, you can call a lower K value, or just not call G61.1 at all.

 

G64 cancels it, but you don't have to actually ever cancel it. The machine will do everything with it active. Drilling cycles will go a tiny bit faster with it cancelled though.

 

BTW: Pics of the new machine or it didn't happen.

[Jeremy Herron@DBS Solutions™]

With G54.4 G05 and G43.3 are legal too, and G54.4 smokes G54.2 hands down all day everyday. Matrix or Matrix 2 controller?

[robk]

Jeremy,

What are the beneffits of G54.4 over G54.2?

Our Variaxis machines are Matrix controls without G54.4 option on them and I can't find any info regarding G54.4 in our manuals. Is G54.4 Matrix 2 controller option or is it available for Matrix as well?

BTW, the search option on this forum is horrible!!!!

[Jeremy Herron@DBS Solutions™]

It is available on both. G54.4 allows for an A and C dynamic offset and will track it properly. You can also have a skew about X, Y, or Z. G05, M821-M830, and G43.4 is legal so you don have to use inverse time, and all you prosition numbers match your program numbers unlike G54.2. Here is a pdf on it.

G54.4 Workpiece Setup Error Correction.pdf

[robk]

Thanks Jeremy. Thaty's some good info there

[Jeremy Herron@DBS Solutions™]

anytime.