The Duet WiFi is the world's most advanced 3D printer controller board. It is:
*
Fast - 32-bit ARM processor with hardware floating point
*
Controllable - built-in WiFi using a separate processor lets you control the printer from a smartphone, tablet or PC - and it also supports USB and a color touch-screen control panel
*
Quiet - five on-board TMC2660 stepper drivers support up to 256x microstepping
...and much more besides. And yet the Duet WiFi costs less than some other 3D printer controllers.
To see more details or pre-order, see [
duet3d.com].
Large delta printer [miscsolutions.wordpress.com], E3D tool changer, Robotdigg SCARA printer, Crane Quad and Ormerod
Disclosure: I design Duet electronics and work on RepRapFirmware, [duet3d.com].