After the first five minutes, I was restless. In the basement of the iMakr showroom in crekenwell, east London, surrounded by a group of bright people Early adopters with directional hair in their eyes, I\'m looking at something in the tank that looks like a glue gun slowly forming a red plastic blob. We have been told that this is the future of design and manufacturing and the Ultimate Frontier of DIY. This is the digital version to watch the paint dry. On the bed of the 3D printer, a cup is being implemented. I want to know how long it will last. Mustafa Rey, the store manager, told me two to three hours. It\'s easy to have enough time to treat and buy coffee cups.