The vertical linear axes on machine tools are fundamentally different than those that operate parallel to the ground. This is because the actuators on the vertical axes have to overcome the effects of gravity.
Imported from the CTE archive to seed discussion on MFGAxis.
Originally published on CTE: 2014-01-15
CTE source: https://ctemag.com/articles/counteracting-gravity/
Legacy path: /articles/counteracting-gravity