I started printing about 5 years ago on an i2 home built. It was to make parts for my model aircraft. They are all parked now and I am spending my time designing and printing useful things and presents for grand children. I have a Mk3, CR-10s pro, 2 i3 clones I am building and a cnc router. I am also working on replacing the electronics on the cnc router with open source electronics. There is also a vinyl cutter in the attic that will get open sourced this year I hope. This is an addictive hobby for an old guy. I started working in the electronics industry in 1973 and have never left. Looking forward the many more years of discovery.