I recently purchased a used Techno Isel 067 gantry router. It is a well built machine. Unfortunately it didn't have the controller unit. I chose a Camtronics Servo Controller. Dan Mauch has been very very helpful. My experience with Techno has been a mixed blessing. They were kind enough to send a .pdf file of their maintainance manual. Beyond that they mentioned that they had a 2:1 adapter kit to step down the Z axis, but after repeated efforts they haven't given me any quote. Finally Dan at Camtronics made up an adapter plate from my design. This was to eliminate a Z axis brake that didn't work with the Geco based Servo system that I purchased. I was wondering how other people have fared in communicating with Techno Isel?