Quote Originally Posted by m_c View Post
Jazz means the leadshine closed loop encoder system - Hybrid closed loop Stepper system - Zapp Automation Ltd.

Servos can be had for not much more (DMM-tech are pretty well priced, but you need to allow for import tax/vat), or you might luck out and get something suitable on ebay for less however that requires you knowing what you're looking for. Also servos can be a bit of minefield to set-up, which is where the Leadshine closed loop steppers have a major advantage.
Yes I do mean those but they are considerably less than the DMM servo system and can be bought off Ebay for not much more than Good digital drives and decent motor setup.
New Leadshine 300W 3-phase Hybrid Servo Drives Set HBS57 Drive + 573S20EC Motor | eBay

They are fantastic for the money and very accurate. The 2Nm 1.2deg 3phase motors give finer resolution than the common stepper motors, the combination of these motors and the very good Hybrid Digital drives are a perfect match for a small machine that doesn't require high speeds servo's offer. They easily match cheap servo's for accuracy and repeatability.