Quote:
Originally Posted by Chance
The problem I see is that the rollers support the weight, but because of their location, the entire slide room tries to pivot out from the top. The only thing that appears to prevent that from happening is the top and bottom rack-and-pinion drives fighting each other -- one pulls in and the other out. It may not be obvious, but I'm pretty sure that under load these drives are not going to want to rotate freely.
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Actually if you look closely at the Schwintek mechanism: The motor at the top just drives a shaft all the way down to the bottom gear. Thus without the motors the top and bottom should remain aligned (provided the rack & pinions aren't damaged) due to the shaft.
The problem with the timing is left-right, not top bottom as that is mechanically connected.
In addition: The gear reduction is part of the motor unit, by removing the motor you're also removing the reduction gears leaving the pinions free to rotate with very little resistance.