[steamer]

Just a suggestion on you screw drive. On mine I found that the furniture drive nuts didn't last long being metal on metal. I just replaced the slider block and drilled and taped right through with the thread. Delron itself is very slippery and I find I can lift a bigger load faster with the new block. One thing though is you have to have a very sharp tap as it doesn't cut the best if it's dull
Rob