Rotary axis substitution breaks C axis moves into many lines

[wdg5555]

When I setup a simple axis substitution toolpath that is just milling a circle using the C axis it outputs the C move like this.

 

C90.739

C91.478

C92.218

C92.957

C93.696

C94.435

C95.175

C95.914

C96.653

C97.392

C98.131

C98.871

 

 

I'm using the 5 axis generic post. Not sure if its a programming issue or a post issue and I've looked at every setting I can think of that would fix it.

Thanks for any help.

[crazy^millman]

Have you tired the filter settings in the legacy toolpaths. The newer 5 Axis Toolpaths don't have filter capabilities so you are pretty much stuck with what you get. I have not tried filter.nci chook to see if does what you are looking for, but it is worth a shot if the extra code is creating issues. That is really the question is it the amount of code you wouldn't expect to see and bothering you or is it the way the machine is handling the amount of code being thrown at it or the file size is so big to fit in the machine? What toolpath are using for your output? Got a sample of you can't share the file?

[wdg5555]

Have you tired the filter settings in the legacy toolpaths. The newer 5 Axis Toolpaths don't have filter capabilities so you are pretty much stuck with what you get. I have not tried filter.nci chook to see if does what you are looking for, but it is worth a shot if the extra code is creating issues. That is really the question is it the amount of code you wouldn't expect to see and bothering you or is it the way the machine is handling the amount of code being thrown at it or the file size is so big to fit in the machine? What toolpath are using for your output? Got a sample of you can't share the file?

 

 

I've attached the file I am talking about.

The extra code isnt a problem that I know of. It just seems like something isn't right when it has 50 lines of code that can be done with one line.

exa.mcx-9

[wdg5555]

It appears to be an issue with the 5x posts. When I switch the machine to a generic 4x then it posts out the feed move in one line. Maybe the Multiaxis toolpaths will post out differently but I don't have access to that addon.

 

So my company is planning on doing 5 axis milling eventually but right now we are focusing on doing 3+2 positional work with the new rotary. Was it a mistake to use the generic 5x post if all we are doing is positional work?

[crazy^millman]

Do a search this topic has come up recently I believe it had to do with max break angle settings in the 5 Axis post corrected the issue you are seeing.

[wdg5555]

Did a search for brk_max_ang and read all the posts. Didn't fix the issue though. I tried changing the variables below but they didnt change the output at all.

 

brk_mv_head : 0 #Break the 5 axis moves to remove gouge

brk_max_ang : 0 #'brk_mv_head' maximum angle move, applied if chordal

#calculation angles moves are greater (negative disables)

[mikenaturalice]

I got that type of output too using a post for Haas UMC750. Postability guys made it. Didn't seem to hurt anything, but the Haas rotary is by no means fast anyways. I will agree it is a little annoying to see 100's of lines of code in what could be 10-20, or something similar.