I have a Triac PC made in 2002 with easy change tool holders. It is an excellent machine but I find lack of Z height a frequent problem. Has anyone fitted a riser block on one of these machines or could offer advice on fitting a riser block? Is there any diagrams available showing the fixing of the ...

I swapped the cards and the problem moved to the other axis so I am replacing the driver card.

I was trying the machine again and a new symptom has appeared the spindle is descending of its own accord! No program running and no one near the keyboard. Does this point to a particular failure?

I have a Triac with Next Move ST USB controller and the current VR Milling software. I am seeing what I think is a failure on the Z axis. Frequently the machine fails to home on the Z axis after connecting to the machine via VR Milling. The z axis position in the software increments continually (thi...

Thanks for the pointers. It was, however, cleaning the home switch that fixed the problem.

I recently obtained a Denford Triac. The machine has at some point been upgraded to USB control. I have setup a new PC (Windows 7) to control it and have installed the current version of VR Milling. When I tested the new PC with the TRIAC the X axis, Y axis and spindle control work but the Z axis fa...