I viewed the AXBB and wiring layout looks familiar to my existing controller the use of my CNC is mainly engraving stone it has a waterfeed coolant pump thats controlled from the software. I have never used Mach 3 software so I will have to adapt to using it. I would like to add a pendant controller to the CNC and at the present I have a tool change sensor because the CNC is in damp conditions the sensor occasionally sticks and gives incorrect tool cut depths can is there a unit available that is water proof?