I forget the DC vari drive feedrate scale numbers, but for Z screw to start turning to move the table up, the vari knob on the panel needs to be at least halfway speed. Been a while since I'd had a late DC drive Deckel but was thinking even near the slowest feed rate that Z should still move up. Axis clamp is loose....so what is more likely....
1. Z ways need lube ?
2. Z gibs too tight ?
3. DC power feed got "weak" somehow ? Any "torque" adjustments to that drive possible ? Beyond the halfway point Z will more up same speed as it moves down...and the rapid works fine as well. But below half feedrate Z just sits there in "up" mode. Machine works perfectly otherwise.
Re 1 &2, I have yet to install the Z handwheel to see how it feels turning the screw by hand. I have yet to install that handwheel as I must first relocate the electrical box from the pallet both pieces came mounted to, to make room for it. But seeing as it turns fine at faster speeds and rapid, I'm inclined to think something up with the DC drive. Any ideas ?
1. Z ways need lube ?
2. Z gibs too tight ?
3. DC power feed got "weak" somehow ? Any "torque" adjustments to that drive possible ? Beyond the halfway point Z will more up same speed as it moves down...and the rapid works fine as well. But below half feedrate Z just sits there in "up" mode. Machine works perfectly otherwise.
Re 1 &2, I have yet to install the Z handwheel to see how it feels turning the screw by hand. I have yet to install that handwheel as I must first relocate the electrical box from the pallet both pieces came mounted to, to make room for it. But seeing as it turns fine at faster speeds and rapid, I'm inclined to think something up with the DC drive. Any ideas ?