Y/C-milling with Heidenhain 640

[Geardoman]

Hi all,

This is not a question related directly to Mastercam but I know that there are a lot om knowledge on this forum so I give it a try anyway.
My employer has recently invested in a Ibarmia THC 22 with a Heidenhain 640 controller, this specific machine has a C-axis in the table and a B-axis in the head.

I'm normally program Siemens 840D so this Heidenhain is giving me some challenges, at the moment so are I'm struggling to mill a regular 2D contour that is bigger than the Y-axis travel so I need to interpolate the Y-axis with the C-axis. I have done this earlier on Siemens 840D with the function TRANSMIT, the function makes it possible to program as regular with X and Y but the machine will utilize the Y and C-axis instead. I also think that Fanuc has a similar function but I'm not able to find anything in the Heidenhain controller. Are you aware of of a similar function in Heidenhain? Or do you have some other tips to come with?

I have looked through all of the documentation and search the webb with out any luck.
I really wound like to be able to program with X and Y and let the machine take care of the rest.

 

 

 

[cncappsjames]

When I need to do this I program a contour toolpath. On the filter tab I turn off arc filtering and turn on break arcs into line segments. I use CAMplete as my Post Processing solution and in there I change it from a 3+2 Toolpath to a 5-Axis (S-TCP) Toolpath then force it to either be on the correct side to keep it in travel. There are probably easier or other ways to do it, that's just how I do it. 

[Geardoman]

Hi @cncappsjames

Thanks for your response! 
If I understand you correctly, your output will just end up being linear motions and it will be necessary with C-values to describe the contour?
Your solution would defiantly work but unfortunately that's not exactly what I was looking for. I'm after a solution/function there I can describe the contour with regular cartesian (X/Y) coordinates and with both linear and circular motions, but the machine motions would then be executed with Y and C-motions (or also X and C-motions).

I hope you will understand that I mean, as both Siemens and Fanuc has this function so would I belive that Heidenhain also has it but I haven't been able to find it..