Delta Printer Hardware
The delta 3D printer design, despite the radically different axes arrangement, uses the same basic hardware as a Cartesian printer. For example, there isn’t anything special about the stepper motors, electronics board,1 or even the hot end. The differences are in how the axes are arranged (all three are vertical), and that the print bed is typically round (older designs use square or rectangular build surfaces) and the frame is typically triangular. These qualities alone are what give the delta printer its unique vertical form with a small footprint.
Note Internet lore 2 defines delta printers by their triangular ...