I had managed to sort out the homing problem with the A axis by modifiying the macro.cnc file in USBCNC but I am still having loads of problems with the homing procedure. I home the machine when it is turned on and get messages saying that the homing is complete and that the home switches now act as estops which is what it should do. When I try to run a job I keep getting a message telling me to home the machine first. The only way I can get round this is to turn off the "homing is mandatory" option in settings. I had the machine setup with a slave x axis using axis a for the slave and tried Adcnc's suggestion of splitting the the x axis signal to both amps but this still had the same result. I can only think that there might be a problem in the software but not really sure about this. I am going to try another couple of modifications to the drives to see if I can get this homing procedure to work properly but if not it will stay off for good. I have also managed to get my hands on an old Lincoln welding torch cooler unit which I am modifying to use as my router cooler. Its a nice compact unit so hopefully it will work well. I need to get some more photos posted as well.

Ian