Scissorlift Motorization

Hi, I’m building a scissorlift, but I’m wondering how to motorize. Right now, we have 4 x’s of 24 long c channel. the bottom x is steel, but we can’t really change that. We have linear slide rails at the top and bottom of the scissorlift. I’m wondering whether it will be best to try and move the slide rails or place a motor on the x’s and whether or not we should stick it on the top or bottom x.

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