i do have those mills too the dm4000 work like a charm it never let me down for over 10 years.. i aquired a dm4400 before christmas and this one is a nightmare ...as power supply it blown up one by one i am ordering a kit from machmotion a brand new mach3 wich will be installed on the dm4400 i should paint it like yours but blue and white..
tell me posted as you retrofit yours as the tool changers and the spindle drive is not set yet i would appreciate your experience to retrofit it
Sag