In my practice, a 3D printer is an indispensable tool. However, I noticed that my previous Kossel Mini was not reliable enough as I had to recalibrate it after every move due to its lightweight construction. That's why I decided to design and build its successor - RockSteady. It's a delta robot that allows for performing various tasks by changing the effector. I most commonly use it as a 3D printer, but I have also successfully used it for milling acrylic materials and printed circuit boards. It also appeared as a drawing robot, creating portraits of visitors at the Biti Aparat exhibition.