I am adding 3D printing capability to my CNC SX3 Mill. There is plenty of information and products out there but I have yet to find any information on how to attach to the extruder/hot end to the mill. In my case I want to maintain the machine as a CNC Mill for most of the time and occasionally attach the extruder, etc. to do some 3D printing.

Any advice on how to do this or where such information exists?

Thanks