Let's start with "I am new to this!". Holy cow, milling a circle without CNC is crazy. I know my skills are new, but can anyone do this accurately? Just curious.
I am converting a HF Mill/Drill to CNC and was making brackets for the motors today. I had to cut two circles out of 2024. Ended up finishing them with a rotary tool in the vice. First pieces I have machined. Turned out acceptable. Soon as the CNC is done, I am cutting better circles.