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Heidenahin spatial plane values on 45deg table machine

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jordanlewis
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Heidenahin spatial plane values on 45deg table machine

I am trying to set up a post for my DMG DMU70evo 2003 with a 45-degree B-axis table and vertical C-axis. The control is an itnc530. Because of the 45-degree table, the machine angles and plane rotation angles should never be the same. The B-axis reads 180 degrees when the table is vertical. The B-axis is set up in the fusion machine setting as [0, 0.7071, -0.7071] to define this. The 3+2 program works fine as shown below, but when posting a Swarf program it outputs the same numbers for the plane rotation as it does for the machine angles for prepositioning. I have checked the source that writes both programs and they appear to operate the same. Is there a variable somewhere else that defines which output to use and when? I have attached the post I also.
 
3+2 program (correct)
19 L B+65.53 C+24.47 R0 FMAX M94
20 PLANE SPATIAL SPA-45 SPB+0 SPC-90 STAY
21 L X+35 Y-124.508 R0 FMAX
22 L Z+142.286 R0 FMAX
 
Swarf program (incorrect)
25 L B+57.153 C+20.324 R0 FMAX (prepositioning is correct, these are machine angles for a 45deg B-axis table)
26 CYCL DEF 7.0 DATUM SHIFT
27 CYCL DEF 7.1 X-38.11
28 CYCL DEF 7.2 Y-18.077
29 CYCL DEF 7.3 Z+164.51
30 PLANE SPATIAL SPA+0 SPB+57.153 SPC+20.324 STAY (plane rotation incorrect, it should be B+40, which would match the machine angles above)
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jordanlewis
in reply to: jordanlewis

Anyone?

Message 3 of 3
AdamKunzo
in reply to: jordanlewis

Try to use IJK vectors instead of direct angles for multiaxis.

 

You can also use PLANE SPATIAL TURN without prepositioning or different Euler convention for the workplane.

 

If you need a help with post processor editing, you can send me message. I offer PP modification as a service and I can simulate your codes in Heidenhain Virtual  box to sort out this for you. 

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