That’s awesome, I have lots of 18650s laying around from Milwaukee batteries. Is there a charger that won’t over charge them? Would it be easy to make it run on batteries as well as plugged in to ac? Anything else your willing to post so someone like me could build one would be appreciated. I can solder and do the woodworking, and have decent electrical knowledge. The more I can learn from other and less I have to figure out myself the better.