Good morning
I have a question regarding a strange problem with our TL2 lathe. Whenever I program using the TNR compensation G42 for turning a part I have a problem with the Z value. On the final pass and the G70 cycle, the tool radius is added to the Z length of the part. For example. If I have a simple part that’s turned back to Z-2.500” it will rough out to 2.497” as I’m leaving .003” on the W value in the G71 cycle, but on the final pass, it will add .031” to the length. The .031” is the tool radius being used in the offset. The machine somehow is adding the .031” to the length only, diameters ( X values) are fine and unaffected. So instead of finishing at Z-2.500” it will finish at Z-2.531”, which causes a bump. Why is this adding to the Z-axis only? I tested some older programs that I ran successfully months ago and now these are also affected.
Could this be a parameter setting that got changed in error? In case I was making a programming mistake, I entered a sample program from the HAAS manual and it does this same strange action.
Any help you could send me will be greatly appreciated.
Best regards,
I have a question regarding a strange problem with our TL2 lathe. Whenever I program using the TNR compensation G42 for turning a part I have a problem with the Z value. On the final pass and the G70 cycle, the tool radius is added to the Z length of the part. For example. If I have a simple part that’s turned back to Z-2.500” it will rough out to 2.497” as I’m leaving .003” on the W value in the G71 cycle, but on the final pass, it will add .031” to the length. The .031” is the tool radius being used in the offset. The machine somehow is adding the .031” to the length only, diameters ( X values) are fine and unaffected. So instead of finishing at Z-2.500” it will finish at Z-2.531”, which causes a bump. Why is this adding to the Z-axis only? I tested some older programs that I ran successfully months ago and now these are also affected.
Could this be a parameter setting that got changed in error? In case I was making a programming mistake, I entered a sample program from the HAAS manual and it does this same strange action.
Any help you could send me will be greatly appreciated.
Best regards,