To 4 axis gurus ,please help !!!!

[mig]

Hi All,

I have been using Mastercam for a long time, but I never used for 4 /5 axis machining. I’m glad I have a chance to do it . I purchased the book “4/5 Axis Training tutorial “ by “In House Solution” and now I’m

about to finish tutorial 3 –“AXIS SUBSTITUTION ;ROLLDIE C-HOOK”.

File for tutorial is here : http://www.emastercam.com/files/x3_45axis.html

Tutorial 3 -Geometry and completed tool path

Everything looks fine but in verify mode after machining pocket part is rotating and next rolldie c- hook operation it simulate on wrong place . I thing problem with some setups or .. .MMD file .

I am using ” mill default . mmd “ ,everything recommended by tutorial

Can somebody explain what is my problem ?

Also I ask if anyone can share with me working .mmd file for regular VMC/ 4 axis (haas)so I can look thru set ups.

I spent almost half day to figure out the problem with no success. So I gave up and asking for help.

Thank you in advance

[Ron Branch @ Verisurf]

Do not trust the verify with an operation like this trust the code. Post it out and see what it looks like that will be your best bet.

 

HTH

[FP1]

Yes, for some reason verify of that roll die example makes it look like it is cutting 90 degrees out of position, but its really not. I think this is just a limitation of verify. There is a setting in mach def, but it just moves all the tool paths 90 degrees from where it was. Ron is right, if you look at the output gcode closely you will see the c-axis angles are within the same range as the other tool paths.

 

Since this is an In-House Solutions example maybe someone from In-House could give us some better insight as to why this occurs with this example.

[John Summers]

You need to use Rolldie parameters CW -90 to get the output in the right place.

[FP1]

John, this is the roll die parameter screen,but I don't see a place to key in CW/CCW or a degree. Is there a different place to key in this info?

 

[mig]

SORRY, where i can find this parameter?

[mig]

B T W Looks like v9 don't have this problem .

[John Summers]

Sorry. These parameters, CW, -90, are in the ROLL/UNROLL function. If other paramerers are used, unrolled geometry will appear in the 'wrong place'. If your sample geometry is already flat, the postprocessor may be moving the angle (adding 90 degrees, etc.).

[mig]

John,

If I disable True solid in verify parameters it

representing right . But can i trust of what i see ?

[Mike-T]

John,

This has been giving me headaches for a while now.

Your explanation is simple, but it never seems to work that way. I've had trouble matching up roll-die paths with 5 ax curves etc..

[John Summers]

MIG, If you can send me the same part file and post that you're using, I might be able to straighten this out. It might help Mike-T too.

[mig]

John ,

In my very first post you can see the link.

This is tutorial from "In house"