Questions tagged [linear-motion]
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Is there such a thing as a double roller/bearing? Two rollers/bearings that share one axis, but can roll independently. [linear/pivot]
I'm looking for two track rollers or bearings that share an axis, but can roll independently of each other. Ideally, they are compact as well ($\leq 1 \text{ in}.$ diameter) and can handle a moderate ...
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Retractable linear mechanism with a retractable drive for servo control
I am considering a mechanical system that is able to retract and extend via servo control but with the drive mechanism being retractable itself. Doing so I will be able to have a multiplied retracting ...
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Help with design of linear actuator
I am working on an automated gate positioner for a drill press. This gate will move back and forth by a set distance so lining up the drill press is automatic.
I have tested with the Z axis of a cheap ...
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How do I calculate the total force required for a linear actuator? [closed]
How do I calculate the total forcerequired for a linear actuator?
The image enclosed shows a series of door panels, each with a cam that i would like to connect to a linear actuator on the right hand ...
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Motor Power for vertical lift in linear slide mechanism
I want to pull up and down 10 kg metal cylinder at 7 inch vertically by using linear slide mechanism in 1 second. What should be the motor rpm, gear type, torque, watt etc? Otherwise how to calculate ...
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Ideas for mechanism for quick reciprocating motion - a 'truly' mechanical switch
I need a mechanism to switch the vertical position of an assembly in as square a profile as possible - i.e. a normal crank mechanism produces a sine wave profile, to explain myself better.
I've seen ...
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Raise/Lower 350lb Sawmill Head 12v Motor Specs
I am new to this site and have a problem to solve in an area that I’m pretty lost in. I can usually figure stuff out with the help of the internet and some digging but not getting real traction so ...
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Linear solenoid mount
I have a linear solenoid with a tapped M3 hole at the end of the plunger, like this:
I need to connect this plunger to a lever, so I want to add a mount which has a connection something like this:
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Linear motion with triangle profile
I am looking for a way to generate a linear motion with a triangle motion profile for my hobby project. The travel distance should be 6cm (so 12 cm for round-trip) with constant speed 1.2 m/s or ...
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Is a pneumatic cylinder in general a linear or rotary actuator?
I've just begun to learn pneumatics and I'm really confused where the pneumatic cylinder falls under in the categorization of what kind of mechanical motion it is suppose to produce. I've seen one ...
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How do I calculate the ideal travel distance of the ball screw per revolution of the stepper or per step for the following hardware?
Question How do I calculate the ideal travel distance of the ball screw per revolution of the stepper / per step for the following hardware (I believe this is called the lead)?
Background I have a pre-...
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If aboard a train being driven along a track by centripetal force, would it feel like you were on a regular straight track?
Question: If aboard a train being driven along a track by centripetal force, would it feel the same as if you were on a regular straight track?
I hope this isn't subjective, I think there is a right ...
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How much force can an acme lead screw handle?
I have a stepper motor that claims 425 oz*inches torque. I want the lead screw to span 2' supported on both sides. I'm trying to decide what diameter lead screw is strong enough to not be damaged by ...
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In circular motion , why do we say this is centripetal acceleration
Let us say a particle is moving in a circle with Uniform circular motion .
Then , if I take an equation like this .
$\theta$ = S(Arc length or Total distance covered ) / Radius of circle *( time ...
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Did not understand this regarding angular velocity
It says $V\sin \alpha$ (component of velocity perpendicular to OP) is the cause of angular displacement. How is it?
if only $V\cos \alpha$ existed, we need not turn over head to always to look at a ...
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