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I'm building a motorized standing desk and am looking into what to use for the linear actuators. I'm targeting a stroke of 450mm and a lifting force of 100kg. I found some Linear Actuator on ebay that would work but I was wondering if I could go cheaper.

If I'm using this calculator right then a for lead screw with 2mm pitch and 8mm diameter to lift 100kg I need a torque of ~114 N*cm.

I think this lead screw and a Nema 23 should work. Together that's half the price of the linear actuator.

Is that right? I don't have much experience and could easily be missing something obvious.

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  • $\begingroup$ So why change from cm and kg to oz and inches? $\endgroup$ – Solar Mike Dec 10 '18 at 15:00
  • $\begingroup$ The motors I was looking at were oz*in $\endgroup$ – RedHatter Dec 10 '18 at 18:07

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