3 x DM860I: Digital Stepper Drive 2.4-7.2A 20-80VDC for Nema 34 Stepper Motor CNC Kit. 3x 34HS39-6004S: Nema 34 Stepper Motor Bipolar 1.8deg 12.0Nm(1699.68oz.in) 6.0A 86x86x151.5mm 4 Wires. Pulse Input Frequency: 0~200kHz.
eBay