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https://www.youtube.com/shorts/tUkkOStjz8o

Imagine this but upside down.

Since the platform bolted to the travelling nuts will be pressed against the ground and will have nowhere to go, I reckon the the platform with the motor & gearboxes on it will move up and down. Am I correct?

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    $\begingroup$ Please post a screengrab of the device in your question so that we don't have to watch a video to understand it. It also ensures that your question makes sense if the YouTube link dies. $\endgroup$
    – Transistor
    Commented Nov 23, 2023 at 14:21
  • $\begingroup$ Apologies. Thank you fr the tip and for fixing my mistake :) $\endgroup$
    – Ojasvi Srivastava
    Commented Nov 23, 2023 at 14:49
  • $\begingroup$ the two parts move relative to each other ... it makes no difference if one of the parts is attached to ground, or if both are hanging in the air $\endgroup$
    – jsotola
    Commented Nov 23, 2023 at 16:10

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enter image description here

The ballscrews control the relative position of the base and the platform. Fixing one in space will cause the other to move.

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  • $\begingroup$ So if this entire assembly is turned upside down, the surface with motor and gearboxes will move up and down, right? $\endgroup$
    – Ojasvi Srivastava
    Commented Nov 23, 2023 at 14:48
  • $\begingroup$ If the platform with the ball-nuts is fixed in space then the motor-gearbox platform must move. $\endgroup$
    – Transistor
    Commented Nov 23, 2023 at 15:17
  • $\begingroup$ Thank you so much $\endgroup$
    – Ojasvi Srivastava
    Commented Nov 23, 2023 at 15:54
  • $\begingroup$ @Transistor the last sentence is unclear .... the two parts move relative to each other even if they are not attached to anything $\endgroup$
    – jsotola
    Commented Nov 23, 2023 at 16:15
  • $\begingroup$ @jsotola, you are correct. I used too many words. $\endgroup$
    – Transistor
    Commented Nov 23, 2023 at 16:31

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