new machine VC630/5AX FANUC 31iA5 alot of probleg19

[CristiP]

Hello !! Last week we bought a Doosan VC630/5AX with Fanuc 31i. This week I test the postprocesor. At the begining with alot of errors. In the end it works with some adjustements.

 

%

O2222 ( DOOSAN TEST PP )

 

G80 G64 G40 G49

 

 

( FREZA D2/R1---TEST )

T2 M6 ( T2 FREZA D2/R1 )

 

G54

 

S12000 M3

G17 G0 G90 X0. Y0.

 

(--- A-3.856 C146.008 ---)

G0 X-25.74 Y70.186

 

G43.4 H2 X-25.74 Y70.186 Z67.724

 

G0 G90 C146.008 A-3.856

Z67.724

X-22.168 Y75.483

Z-27.061

G1 X-21.98 Y75.762 Z-32.05 F200.

X-21.96 Z-32.063 A-3.807 C145.538 F1200.

X-21.941 Z-32.076 A-3.758 C145.055

X-21.921 Z-32.089 A-3.71 C144.56

.....

G49

G69

G91 G28 Z0 M5

G28 Y0 M9

G0 G90 A0 C0

 

(D2/R1)

T2 M6

G54

S18000 M3

G17 G0 G90 X0 Y0

G68.2 X0 Y0 Z0 I90 J-35 K-90

G53.1

(--A-35----C90----)

G0 X-25.74 Y70.186

G05.1 Q1

G43 H2 Z10 M8

 

G0 G90 X... Y....

....

G49

G69

G05.1 Q0

G91 G28 Z0 M5

G28 Y0 M9

G90 A0 C0 G0

 

I have some problems with G68.2. At the begining if it's:

G17 G0 G90 X0 Y0

G68.2 X0 Y0 Z0 I90 J-47 K-90 (THIS MEANS A-47 C90)..but the machine it rotates the A axis in + direction (maximum A+ is 30) and it gives me the error with overtravel A axis.

If the J is LT 40 (ex: J-40) the A axis position it is ok but if the J is GT 40 (ex: J-47) A axis it goes in A+ where A30 it's the limit...end again Overtravel A axis..

I have tried many options and at the end the working one was:

G19 G0 G90 X0 Y0 A-45 C90 (I DO NOT UNDERSTAND WHAT IS THIS)

G17

G68.2 X0 Y0 Z0 I90 J-47 K-90

G53.1

G0 X.. Y...

G05.1 Q1

G43 H .....

 

After I finish a bottle cavity in 3 axis only I've made some 3+2---- A35 and A-35 toolpaths to see is the kinematics of the machine it's ok. I've made the toolpaths exactly the same in both sides with the depth of 0.03mm. I first put 0.4mm in tool leght offset because the tool went to deep and second--- depth was different in the two sides. What is happen??

 

The program for the 2 sides was like this:

(D0.6/R0.3)

 

T16 M6

G54

G17 G0 G90 X0 Y0

G68.2 X0 Y0 Z0 I-90 J-35 K90

G53.1

(A-35 C-90)

G0 X50 Y50

G05.1 Q1

G43 H16 Z60 M8

Z-20....

.....

G49

G69

G91 G28 Z0

G90 G0 A0 C0

 

 

G68.2 X0 Y0 Z0 I90 J-35 K-90

G53.1

X50 Y50

G43 H16 Z60

Z-20....

 

What is wrong? The guys from doosan they don't know:(. I have also a DMG HSC 55 LINEAR

but on this machine we did the kinematics. On Doosan VC630 they say this thing is already did of Doosan from factory. What can be wrong???

 

Sorry for my english..Please help me...suggestion,ideas

 

Thanks

[crazy^millman]

Hello looking at code really does me no good. I would have to have a file. Who made your post for this machine? What process did they use to test and configure the post for this machine? When you use the post builders test file does everything look right? Seeing the output of where it is "G19 G0 G90 X0 Y0 A-45 C90 (I DO NOT UNDERSTAND WHAT IS THIS)" I see an A-45 being setup that ay in the operation. If you are not setting up the Angles correctly for the operation and do not have the limtis set correctly in the post then you got what you got by deisgn.

 

Next Area you say it did the depths wrong, but then leave out the code that shows the error. How is someone supposed to review it and see the error if you leave that part of the code out in your posting?

 

I strongly suggest you contact your Mastercam Dealer and see what they can do to help you dial this in.

 

Welcome to Forum.

 

HTH (Hope that Helps)

[CristiP]

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O555 ( 1612-GRAVARE )

 

G80 G64 G40 G49

 

 

( SCULA FLAT 0.3 UNGHI 90 GR LA VF )

T30 M6 ( T30 FLAT 0.3 UNGHI 90 GR LA VF )

 

G54

 

S18000 M3

G17 G0 G90 X0. Y0. (what means this block before G68.2? Changing this affects the A axis direction A- or A+)

 

G68.2 X0. Y0. Z0. I90. J-47. K-90. (here it supposed to tilt the A axis in minus direction but if the J vector is GT 40 (J-50) A axis it goes in A+ direction where the limit is A+30)

G53.1

(--- A-47. C90. ---)

G0 X5.181 Y8.513

G05.1 Q1 R10

G43 H30 Z19.347 M8

Z19.347

 

Testing the G68.2 in A-35 then in A35 with identical toolpaths I saw differences in dephs. One side was deeper. Another thing the tool touches the part with +0.4mm correction on the tool length.

Strange. I asked the guys from Doosan about the machine kinematics—they do not know : (

I try to find something in the Fanuc book but a lot of things here. I attached 4 pics with the program (I do not know hot to attach the nc file here), so please take a look. What about the program do you see something wrong making the machine to act like this????

 

Thanks alot. Any suggestion any ideas I appreciate it.

[crazy^millman]

With axis mapping you have some different options. You can position the part into place and then call the axis mapping code that then tells the machine everything being done is in relations to this new position. That is what is going on here from what I can gather since it is 3+2. Now you need to index your part into the position you want it to be if for machining so that is what I see the G00 G90 X0 Y0 AXX.XXX CXXX.XXX move doing here. Then you have the G68.2 call that then tells the machine this new place related to the mapping going on. Since this is a table table machine and the X,Y and Z axis all are normal 3 axis configuration your the control with G68.2 is giving you a lot of freedom to deviate from the original setup. I looked on their website at this machine and it says A axis has a travel of 150 degrees so I aumme that is A- something and the A+ a greater amount or is could be the other way around. Either way your information is still very limited to help you figure out what is going on. Have you put anything in the G54 offset or the common offset of the machine? Looking at the code you put up there in the screen sho9ts the Z values are the same so that goes back to a machine issue. When you are running the part what are you values on the screen for the Z position when running the program? How are you going about setting up your part? How did you set up the part in the Mastercam session? Again you are being very vague in your information. Who is your dealer and who made the post? Get with your dealer and they can help you get all of this sorted out. This could take months to sort out on a board and sorry, but you are about past my point of offering any more help to you provide some more information.

 

Do a search on this forum and you will find tons of help about this very topic and again please reach out to your dealer. I get work from dealers so for me I like it when customers reach out to them it might mean I get a call to help their customer.

[CristiP]

Thank you for your time. I will give you everything you want pictures from the machine,mcx file etc. Tomorrow I will go to work and I'll make some pictures with work offsets, fixtures etc. I do not know what is the line before G68.2. I read something in a Fanuc but alot of thing and short time that is why I need your help. I will try to find and example of program with G68.2 command and more information. Maybe this weekend I will have time to do it. I will take your advice I try to find something helpful here on this forum first.

I spoke with my mastercam dealer I wait for his answer.

 

Thank you Crazy^Millman. In the G54 I took the X Y Z coordinates like usualy for setup. I will make some pictures tomorrow.

G54.2 it has something to do with this??

Thanks again. Please help me further

[crazy^millman]

Thank you for contacting your dealer.

 

Also thank you for understanding and sorry, but their are people who use the software illegally. I support the dealers and anyone using bootleg software is wrong IMHO. Not trying to say you are, just want you to understand where I am coming from if I seem cold or harsh. I am on my own no steady customers and get work where and how I can so if I start upsetting the group that can help me the dealers then I am pretty much shooting myself in the foot. A .z2g will be good include everything in it and then from there I will be glad as time permits to see what I can do to assist you.

[CristiP]

Thanks.