Bought these to replace some terrible dmm servos i bought last year. Can't afford new servos, so I went with the largest nema 23s I could find, and went with gecko drive to drive them. Unfortunately I received one that was DOA, luckily Gecko is a great company, unlike dmm, and actually supports their customers. Sent it back to Gecko under warranty and hopefully they can fix it without any problems.
Hubbard CNC sells a great product at a great price and will do business with them again. I like how they include the current set resistors. It make setting up the drive that much easier.
Good quality. Versatile driver capabilities using 1800 in/oz stepper motor
Pros: Heavy duty design, size, instructions, LED status, ridiculous power. Cons: Small Screws on terminal block, must use heat sinks and fans, 72vdc switching powersupply 5 min overheats but quiet, 36vdc transformer fullwave bridge 20/30mins overheats but noisy