CNC Programming Left Hand Right Hand

[drawoh]

If I prepare a machining drawing tabulated left hand and right hand, can a CNC programmer take advangtage of this, or do they have to write two programs?

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JHG

 

[BrianE22]

Fanucs have a mirror function about the x and/or y axis. I suspect most VMC controllers have this.

 

[3DDave]

I wonder if it applies to generated threads. I always looked forward to someone putting LH threads in the opposite hand part.

 

[SwinnyGG]

can a CNC programmer take advantage of this

Every machine controller I've ever touched has had mirror functions, and so has every CAD program. I've done this a bunch and never had an issue with having to rework things for a left hand part.

I wonder if it applies to generated threads

It can - smart programmers will set up generated threads as a subroutine anyway, in which case they would not be mirrored.

 

[3DDave]

Inspectors should fail parts until engineers put an explicit note "OPPOSITE EXCEPT SCREW THREADS."

Time to start that revolution!