Custom Bitcoin Coasters: Laser Deep Etching
Jon Off CNC Laser, CNCROi.com News, Coasters, Metal Products,
Custom Bitcoin coasters made by CNCROi.com can be made out of any material but today, we'll focus on their stainless steel variants. https://www.youtube.com/watch?v=Kd9btyqS2Jc/ The custom Bitcoin coaster you see in this video and photos is 4" in diameter, but if...