What Is R Parameter Programming in CNC?

AI Thread Summary
R Parameter Programming in CNC refers to the use of R codes, which are typically associated with defining radius values and reference heights in canned cycles. Some Siemens CNC machines utilize R Parameter Programming as a form of macros, although the specifics can vary. The term may not have a universally accepted definition, leading to ambiguity in its application. Understanding its context within different CNC systems is essential for accurate programming. Clarification on this topic could enhance knowledge for those preparing for CNC programming exams.
phiby
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I am currently doing a course on CNC Programming (GCode, MCode and also APT Programming). The course is almost over and we are going to have an Exam at the end. The Exam is mostly writing programs but would also have a few theory questions. One of the questions asked in previous exams has been to describe "R Parameter Programming".

In regular CNC programming, We have used Rcodes for radius and also for canned cycle Reference height. Googling I also found that some Siemens machines have something called R Parameter Programming which seems to be some kind of macros(Not sure).

In general, does "R Parameter Programming" mean something specific for CNC Programming, or is this an ambiguous question?
 
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I only know the use of R for a radius so I can't directly help. If you do get an answer though, please post back.
 
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