Endmill chatter at 20,000 Frames-per-Second

CONSIDER SUBSCRIBING 🥰 ☕Buy me a coffee? https://www.buymeacoffee.com/Breakingtaps 🔬Or Patreon if that's your jam: https://www.patreon.com/breakingtaps 📢Twitter: https://twitter.com/BreakingTaps 💻Discord: https://discord.gg/R45uCXcEv4 What does it look like when an endmill starts chattering? How about at 20,000 frames-per-second? I'm in the shop playing with a high speed camera, filming Online Carbide 1/4" 4FL variable helix end mill on mild steel with my AvidCNC Benchtop Pro. Really amazing footage, pretty impressive to see the workpiece, vice and spindle/endmill moving around so much! 0:00 Intro 0:56 Test setup 1:17 Stable cut at 19000 FPS 2:06 Chattering cut 3:52 Motion detection (frame differencing) 4:22 Deflection analysis 5:03 Head-on shot 5:29 More chatter 6:03 Aggressive cutting 6:34 Breaking endmills 8:41 Four minutes of 20,000 FPS Footage :)