Engraving plastic name badges

Hi Everyone…

Really new to CNCing and wanted to know if any of you have experience engraving on plastic name badges like these: https://www.amazon.com/ExcelMark-Blank-Badge-Magnetic-Backing/dp/B07RR37TPB/ref=sr_1_9?keywords=blank+plastic+name+badges&qid=1571912566&sr=8-9

I’ve messed around so far with using a .25mm ball nose end mill, but since the letters have to be pocketed, it takes about 12-13 mins for a single badge, not including the setup time. I’ve seen some videos of these things being done at fairly high speed, but it’s impossible to tell what kind of bit they are using. Any thoughts ?


It’s usually just a small diameter flat endmill. Some go fancy and use a v-bit, but like you found out with the ball endmill it takes forever.

Laser engraver is a much faster option.