I used 2" angle iron and 3/16 plate. If you build these, be sure to move the threaded rod a little further out so the casters will still spin 360 deg. A design error on my part, but (for my purposes) not worth rebuilding.
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Clever design. Nice job.
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Nice. I’m going to modify the whole table. I REALLY hate stem casters. But this is a great solution until I get my other design finalized.
just came across this - what an awesome idea!
Can you automate this so that each threaded rod runs on its own nema 23 motor so that it auto levels 
Wait…an auto leveling table 
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Copy that!
Hmmm!
Arduino Controller, 2-axis accelerometer, 3-actuators , 3-drivers, some mechanical bits and a touch of C+ code. One leg will be fixed the other three actuated. Do you want any pilot LED’s on there too, or maybe a TFT display?? 
My wife just came into the room and asked me what the loud crash was. It was your reply going over my head and hitting the wall.
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hahahahaha!
You can’t just pipe the leveling graphic to the HMI display that I know you are planning anyway?
And, by the way, you build it, I’d prolly buy it, just for the “geek factor”
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