TATTOO MACHINE

My tattoo machine! a friend of mine tried it and he now has a beautiful tattoo on his foot! ahhaha DISCLAIMER - BE CAREFUL!!! NOT A TOY!!!! NOT FOR CHILDREN!!!I WILL NOT respond of any damage or injuries on people / animals / objects!!! your risk! : The story:I designed it for a friend of mine, who needed it. We went out to drink a beer in a bar, and we draw a sketch. Later I designed it on Fusion 360, then I printed it and tested it on a BANANA! XD The result was good (see the photo)When the machine was ready, my friend tattoed his foot and it worked! A simple circuit is needed to control the speed of the motor. I designed a simple NE555 PWM controller. You can see the schematic on the photo. Maybe you can design a better circuit, you can use the box to fit your design in. I have bought sterile tattoo needles from amazon: https://amzn.eu/d/7zfmDql(8mm plastic diameter) ( I can't find the original link but I think they are compatibile) The motor is a generic RC DC electric motor. Y