John is now selling our Viper 75 and Viper 95 DC Servo drives.
Customers can get direct support from Larken Automation at (613)746-5685 or on the Viper Drive forum on this website.
You can download the manual directly from my website
http://www.larkencnc.com/dloads/viper-manual.pdf
Larry kenny
Larken Automation