Questions tagged [gear]
The gear tag has no usage guidance.
33
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Is there a large difference between full-step and half-step stepper motors' torque at very low speeds?
I'm using a NEMA 23 for a solar tracker, which means my mechanism will move a single step every 5~10 minutes, and the step angle is 1.8 degrees which I need to bring down to 0.01 degrees.
Now I need ...
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Servo motor control maximum angle modification
I'm trying to figure out if it is possible to modify a JX Servo PDI-6208MG 8KG Servo 120 Degree 0.07 sec, which matches the required speed, size, and torque, but make it rotate over 270°. I'm using an ...
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Why does this DC motor increase in current and then decrease as the speed increases?
Well, the general answer to this is that as the motor needs to overcome the inertia from its state of rest, it requires high starting torque and aka high current is consumed to do that work.
On the ...
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103
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Get high torque out of stepper motor
I have a project where I need to lift about 2 kg about 15 cm above the ground with a stepper motor. I understand the holding torque can be calculated force times distance. So that would give me ...
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266
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Reducing step angle of stepper motor with gears
I am an electronics hobbyist and I have come across an issue with stepper motors.
I have an existing mechanical clock assembly that I want to drive with a stepper motor. Due to size constraints of the ...
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208
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How to determine if a motor will be powerful enough to drive a drift trike
I am planning on building a drift trike and I am trying to work out the best motor to use that is right for my budget.
I have seen:
a 2000w (48v - 4300RPM - 4.44 N.m torque)
a 1000w (48v - 3000 RPM -...
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252
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How do I find the best DC motor for my rack and pinion system?
I need enough electric power to produce about 0.289 Nm with a rack and pinion system and compress 24 mm of a 110 mm x 21.6 mm, 0.99 N/mm steel spring.
What I have so far is that for a 10mm pitch ...
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193
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How do I make a DC motor rotate clockwise for a random value, then rotate counter-clockwise for the same amount autonomously? [closed]
For my project I need to build a repeatable vehicle without using any programmable devices (eg: Arduino, microcontrollers etc) After activation, the vehicle needs to move straight towards a wall which ...
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116
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Stepper Motor angle after gear
I wanted to ask a relatively simple question:
Currently I am using a 3 phase AC motor that has a Gearbox torque of 5.1 Nm. A 16 teeth gear is attached to the shaft and this is connected to a 72 teeth ...
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67
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How much load DC motor can move? [closed]
with 1000 rpm how much load it can move on 12v?
I want to no load of DC gear motor on 12v and 5v
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How Can I Efficiently Adjust Difficulty on a Pedal Generator without Mechanical Gears?
I'm charging a battery using pedal power, like this:
pedals -> brushless generator -> rectifier -> charge controller -> battery
I'd like to be able to ...
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0
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What is this component? It locks magnet when powered
these 2 discs are part of a vehicle gear level control. Operation is, you push button on the gear level and then you can change vehicle gear position (eg 1, 2, neutral, reverse etc)
Photo show side ...
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How does gearing affect power generated by a permanent magnet DC motor?
I am currently working on a project to harvest electrical energy from a rowing machine. I am trying to make use of gearing ratios to adjust the resistance level offered by the system, and the impact ...
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Confusion regarding a 12V DC motor's RPM
I have a 550 DC motor of 12V, 45W and 10K RPM installed on a wheel, which is not causing the wheel to turn fast enough when the motor is connected to a 12V battery.
I replaced the motor with an older ...
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Choosing a stepper for antenna tracking system
I am building a prototype for an antenna tracking system. The following animation will make it slightly easier to understand what I have in mind:
https://youtu.be/DZ0LRf6_Zew
The two antennas are: ...
- 125
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134
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Can servos have a true neutral gear?
I am developing a mechanical arm that can be pitched remotely at a certain angle using a high-torque servo motor. The servo needs to keep the arm at a precise position for any give amount of time and, ...
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2
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203
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Small motor (P<10W) with high torque
I need to find a small motor (max 10W) with a high torque(max 1Nm) and low rpm(max 60rpm).
This question has been asked several time but I still have some doubts.
I understand that the best option ...
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1k
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Problems calculating torque for a motor opening a door
I want to make a device that can open a door from a cabinet. The door is about 4 meters wide and about 0.5 meters high. (if the width causes a problem I can split it in 1 meters section with one motor ...
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1
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302
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Servo Vs Stepper for a high accuracy project
Im trying to build a weird idea for academic purpose. Trying to control a real car using joystick. So for the steering purpose and accelerator pedal, without modifying any internal mechanics, what Im ...
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gear motor can be used as generator
I am in doubt with a motors operation,
I am not sure whether this question could be asked here,
I have a car wiper motor with two speed operation,It uses a PM dc motor with worm gear inside, so it is ...
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80
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Gearmotor : Principles and usefulness compared to a regular motor
I'm a student in an engineering school and I have a question for professionnals : What is exactly the usefulness of a geared motor that uses a gear to reduce the rotation speed compared to a regular ...
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99
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Control of motor engagement with shaft
I am using servo and stepper motors for the first time, and have been searching for a solution to this basic problem:
I want to drive a shaft with a motor, whereby this shaft also has a ‘neutral’ ...
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Tee-off, what is it? [closed]
I've been looking for explanation to this term recently but it's still unclear for me. Is it some sort of bolted connection or the beginning part of a busbar ? I'm asking because I found this in MV ...
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162
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Wind turbine design question
I am planning to design a wind turbine that is has rotor blade radius of 0.915m and is connected to a generator. The generators specifications are, it is an ac generator with 5000 coil turnings and a ...
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2
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What DC motor specs do I need to lift a weight with certain gear configuration
I'm trying to determine how much torque, power, voltage, and size I need for my motor in order to lift between 50-100lbs given the gear configuration below. Assume that the motor and gears are ...
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1k
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Required Gear ratio for a DC motor
I am making a dc motor vehicle, it will have 2 drive wheels each powered by a separate motor. For a desired speed and acceleration, how would I go about calculating the gear ratio needed?
Info I have ...
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1k
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How to measure the torque (of a stepper motor) with a (belt) drive accurately?
I have a project that requires really accurate torque measurement of a motor or a motor + a belt drive. How do I do that?
I am guessing that measuring current through a stepper motor is is ...
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2k
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Stepper motor for robot wheel drive [closed]
I'm trying to chose correct stepper motors to drive 2 wheeled robot. I started with geared DC motors, but found they are too fast (I have 27:1 geared), and they provide little torque at low speed.
...
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2
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1k
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Changing Motor Gearboxes to Reduce Current
I am currently using two 12V CIM Motor (Spec Sheet: http://content.vexrobotics.com/docs/217-2000-CIM-motor-specs.pdf) with a gearbox at a 49:1 ratio.
I have a LiFePO4 battery that is rated at a ...
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Get current gear from rpm and speed through OBD2
I would like to modify my car with the help of Arduino to display the current gear. I wasn't quite sure where should I post this question as it is a car topic, as well as an electric engineering and ...
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3
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1k
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Generating electricity by moving door handle to produce 3 Watts?
I want to attach a generator to a door handle and have the output charge a battery. My system needs to provide about 3 Watts. A similar question was asked here and I referenced it to get an idea of ...
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How can I increase the torque, but not the speed of this DC motor to gear with a potentiometer setup?
Short video of the machine running.
It's made of three AAA batteries in series giving a total of 4.5V to the DC motor, these are connected through a potentiometer to control the speed. The DC motor ...
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Change the motor or the gears?
I wonder, what's better to achieve some given torque? To chose a motor with the Kt that gives that torque or to choose a reduction drive that will output that torque from a given motor? I wonder what'...
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