×
INTELLIGENT WORK FORUMS
FOR ENGINEERING PROFESSIONALS

Log In

Come Join Us!

Are you an
Engineering professional?
Join Eng-Tips Forums!
  • Talk With Other Members
  • Be Notified Of Responses
    To Your Posts
  • Keyword Search
  • One-Click Access To Your
    Favorite Forums
  • Automated Signatures
    On Your Posts
  • Best Of All, It's Free!
  • Students Click Here

*Eng-Tips's functionality depends on members receiving e-mail. By joining you are opting in to receive e-mail.

Posting Guidelines

Promoting, selling, recruiting, coursework and thesis posting is forbidden.

Students Click Here

Jobs

5 axis Post processos

5 axis Post processos

5 axis Post processos

(OP)
Hello. I have (i made) my own postprocessor, which is working well on any axies (when i mill something directly on any rotated axis). Now i started ti check how it is working when i'd like to mill a 3d surface, with a multi axis moving, but something wrong, and the tool is go to a wrong position. I am sure something is wrong in my post, but i didnt find yet.
Is this any special command what i must use in this milling type?

RE: 5 axis Post processos

what controller?

----
kukelyk

RE: 5 axis Post processos

(OP)
Heidenhain iTNC530 (for HERMLE C800U)

RE: 5 axis Post processos

The machine works best with some kind of tcpm when cutting multi-axis mode.

When using M128 or TCPM coordinates are relative to the part and not relative to the machine.

The coordinates need to be mom_mcs_goto instead of mom_pos.

Initital coordinate before you switch to M128 should be in machine coordinates.

RE: 5 axis Post processos

(OP)
My post just turn of the simultan milling with M129 with this operation. I changed the linear movement coordinates to mom_mcs_goto, now looks like the linear movement is go to the good position, but the rapid movement is still in the wrong position. how can i modify that? Meanwhile i started a totally new/empty post, and i just checked with that what it's do with my operation, ant there the rapid movement is also good, and there it's still mom_pos standing same like in mine, but there also the post turn on the M128. Maybe should be better if i start everything again from the begining, and not from the "original" hermle post what i found on the nx support site.

RE: 5 axis Post processos

maybe it is a better idea to write a procedure that makes mom_pos mom_mcs_goto and put that procedure in the MOM_linear_move and MOM_rapid_move. You can either use a ude or some logic to sense multi-axis milling operations to switch between mom_pos and mom_mcs_goto output.

The rapids will need some adjustment too in multi-axis mode because xy z sequencing will in some cases damage the part.

RE: 5 axis Post processos

Try FUNCTION TCPM instead of M128

----
kukelyk

RE: 5 axis Post processos

(OP)
Thank you / Köszönöm. :D

I found the basic problem. If i just make a save without any modification from my "basic" post, my newer post builder modify almost every command and prompt in the post, thats why it's started to be wrong. :(

Red Flag This Post

Please let us know here why this post is inappropriate. Reasons such as off-topic, duplicates, flames, illegal, vulgar, or students posting their homework.

Red Flag Submitted

Thank you for helping keep Eng-Tips Forums free from inappropriate posts.
The Eng-Tips staff will check this out and take appropriate action.

Reply To This Thread

Posting in the Eng-Tips forums is a member-only feature.

Click Here to join Eng-Tips and talk with other members!


Resources