Comparison of linear motion systems

Do you know the difference between linear motors, rack and pinion, timing belts, and ball screws in linear motion? It is critical to understand the functionality and intelligence of drive systems in linear motion. In this video, it shows the differences between different drive systems, and their pros and cons in choosing the perfect one for your application.
What are the advantages of a linear synchronous motor? Used in transportation, scanning, and printing linear motors can greatly increase throughput and process efficiency.

[@marcus3d]

The stated problem of ball screws applies only if you rotate the screw, but you can rotate the nut instead, and thus increase speed and also support multiple carriages.

[@FullFledged2010]

Very bias. As they haven't talked once about torque of dynamic loads. A linear magnet motor has a spring effect at high loads so not necessarily accurate.

[@BuceGar]

Someone is trying to sell linear motor systems.........

[@g1hau]

To be clear, the module in motion for the linear motor is required to be powered? If I understand correctly, the cabling has not been shown, for the sake of the animation?
Is there a real-world case study available showing the movement, components and cabling? (rather than computer animation)

[@tecnotion-directdrive]

Yes, the moving part must indeed be controlled. For the clarity of the animation, we left out the cables
If you want to see what it looks like in real life, you can check out this video: th-cam.com/video/G2oyEoTyDHI/w-d-xo.html

[@iman96_fa]

So useful! Thanks a zillion!👍

[@Alex-yj3rm]

Seems bias

[@patrickmanser7425]

Main thing that I disagree with is ball screws having "decent" accuracy. In our designs we easily drive those down to micron level. However, I will say I do like linear motors like they show here.

[@ResistanceLion]

Linear motors will have friction too, and magnets is more expensive than regular metal products

[@PiefacePete46]

@@patrickmanser7425 : They also "forgot" to mention that you can eliminate whipping and have multiple carriages with ball screws by rotating the nut instead of the shaft. (As Marcus3d comments above.)

[@BarioIDL]

it's on the nose, you can feel it

[@user-qo1lx2es8k]

So biased