Uploaded January 2021 | Updated September 2026, 3 weeks ago

---

In this video I demonstrate how to use the I/J when programming an arc, rather than using the R, as not all CNC machines will accept the letter R.
00:00 Intro
00:48 How do I/J work
02:56 Using NC Plot to convert R to I/J
03:28 Whats next