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I was thinking the same thing a jack screw (I had a table I bought from Boeing Surplus that worked like that). The thing I'm wrestling with is how to keep if from getting wracked in the raise/lower scenario. Some kind of rails would be needed.The one thing I didn't like about the old table I had was carriage required to do it took up a lot of space so I would want a motor and jack screw to be in the leg(s)...do I need 2 stepper motors (1 per side) or can it be done with 1.
Very cool instructable, thinking about doing this but going 1 step further and making the table/desk to be able to be raised and lowered.
Yah, I don't like the single in the center idea and the mechanics of using gearing to only have a single motor has similar draw backs. Would you need that strong a motor? Seems that spinning the rod around would not need that much strength but I haven't thought through the torque needed.
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