Questions tagged [linear-motion]
The linear-motion tag has no usage guidance.
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Is it possible to have the load cell signal as feedback to the servo drive of the servo motor?
In my project, I have to control the linear motion in one of the two modes. It will be either in position control or load control.
for the displacement control, The servo motor takes the quadrature ...
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How to constrain stepper motor inside case?
I have a stepper motor linear actuator assembly like this for example, but the stepper shaft seems able to move axially back and forth - hence when I change direction it has to do a few rotations, ...
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Help with linear rod drill press like design/materials
I am putting together a basic machine for “pad printing” extremely small and precise parts. The design is very much the same as most homemade drill presses and consists of linear rods, flanged ...
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How to solve this linear motion problem?
Context:
I have a lead screw rod, nut and a pulley aligned vertically. The nut is attached on top of the pulley so their respective bores are aligned and the rod is arranged so that it is threaded ...
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How to debunk this "Perpetual Motion Machine?"
Here is video of a purported "perpetual motion machine."
How do you explain its behavior?
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Ceiling Mounted Camera Slider with Pan
I am looking for feedback on my camera rig design. I am going to run a track along the ceiling of my studio to move my camera back in forth. I also want the camera to be able to pan, so I want to ...
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Using carbon brushes on linear guides
I’m designing a machine which has an actuator on a carriage sliding on two round linear guide shafts. I got an idea of transmitting electricity to the actuator through the shafts. There would be ...
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Rotary to linear motion - how to make upside down “hammer” mechanism?
I’m not an engineer, however I think this place is the best one to find an answer to my question.
So my problem is as follows: I need to create a mechanism, preferably driven by a dc motor, that will ...
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Equations of motion for a motor supported by a spring resting at the centre of a beam
Assumptions from this:
Sum of forces on the beam to be calculated
Sum of moments on the beam to be calculated
Sum of forces on the motor to be calculated
As:
F=-kx = kθL^2
Equations of Motion
...
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What lead screw to use for specific torque and speed requirements?
The setup: I'm trying to mount a leadscrew powered by this motor Tetrix Max Torquendado Motor on a 40ish pound robot, in order to lift it 4" off the ground. I already have the linear motion, latching ...
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Sharing load between linear actuators
I'm building a motorized standing desk and am trying to calculate what linear actuators I need. If I have 4 linear actuators (one on each corner) each able to lift 25kg does that mean that the desk ...
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Dynamics of a rigid body in a system of two linear drives
I've been trying to solve the dynamics of this system for quite a while, but cannot seem to get the right answer. I've tried solving it with Lagrangian method but I am not so confident with the ...
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Linear actuator calculations
I'm building a motorized standing desk and am looking into what to use for the linear actuators. I'm targeting a stroke of 450mm and a lifting force of 100kg. I found some Linear Actuator on ebay that ...
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Shaft which can independently rotate and translate axially
I would like to mount a sensor onto a shaft which can be translated axially as well rotated independently. This arrangement permits me to capture a 360 deg scan and then translate the shaft axially to ...
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Converting Linear Motion into rotary motion
I'm looking at designing something using the same mechanism used in this pepper grinder. As far as my knowledge goes, it is converting vertical Linear motion (the push button) into horizontal rotary ...
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