hi , I have the Syntech EZ4 controller it is robust controller i wouldn't change it . i had same problem when i bought the machine with out manual but later on i manage to create one pp for my need through reading and asking in many forums specially cnczone and Artsoft forum there are plenty information regarding Syntech EZ4 i am using Art cam and inventor pro . if you can mange to open the pp from program file of your cad/cam file you will find the pp file (post Processor )and copy that one and try to study it and you can easily edit i have a bunch of them but not Alpha cam . if you want to change to art cam or vectric i can e mail you .it is not something you pay for pp .