DIY Rotary tumbler polishing Machine, Arduino project

PCBA from 0Free Setup, Free (New Users Get 30 Coupons) Hello friends In this video I have build a mini Rotary tumbler polishing machine, This machine is powered by Arduino and custom PCB User can set the time for tumbler rotation. Custom PCB used in this project visit for more projects : FB page : This video is made for entertainment purposes only. Please use judgment, care, and precaution if you plan to replicate.