A typical linear actuator couples a motor with a mechanism such as a belt and pulley, rack and pinion, or ball screw. Designs vary to offer long travel lengths, high speed, high positioning ...

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Whatever, we don’t judge, but the build requires a short-throw linear drive mechanism that can be back-driven, specs that argue for a ball screw. [Andy] goes through the challenges of building ...

The linear motion of the actuators was defined by their origami pattern ... The press can be linearly motivated by the step motor (6,400 steps per revolutions) through ball screw. In order to minimize ...