- #1
How to Calculate Required Torque for Mini Servo on Slider?
- Thread starter mountainchicken46
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- Calculation Torque
AI Thread Summary
To calculate the required torque for a mini servo moving a load on a slider, it's essential to consider whether the goal is to simply hold the load or to accelerate it. The discussion emphasizes the need for details about the mechanism's configuration, including the number of parts and their movements relative to a fixed frame. The user specifies a desire to move a heater mounted on the slider at a constant velocity of 0.5 m/s, which necessitates variable crank speed control. Additionally, the limitations of the slider's range are highlighted, indicating that velocity must decrease as it approaches the ends of the range. Understanding these dynamics is crucial for accurately determining the necessary torque.
- #2
berkeman
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Welcome to PhysicsForums. 
You go first...mountainchicken46 said:
- #3
Dr.D
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What you have is a highly offset slider-crank mechanism.
Are you concerned with simply holding the slider against a load, or do you want to accelerate the slider? If you want to accelerate the slider, then at what rate? You need to give us a bit more to work with.
Are you concerned with simply holding the slider against a load, or do you want to accelerate the slider? If you want to accelerate the slider, then at what rate? You need to give us a bit more to work with.
- #4
Baluncore
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I am confused.
How many separate parts are there ?
What can move relative to what ?
What bits are the fixed frame or chassis ?
How many separate parts are there ?
What can move relative to what ?
What bits are the fixed frame or chassis ?
- #5
mountainchicken46
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I want to move the load (it is actually a heater) that was mounted on the slider at 0.5m/s either to the left or right.Dr.D said:
- #6
Dr.D
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A constant velocity on the velocity will require a variable crank speed. Are you prepared to control crank speed to vary in a specific way?
I hope you are aware that the slider moves only over a limited range. As you approach the ends of the range, the velocity must approach zero in order to reverse. Is this satisfactory for your purposes?
I hope you are aware that the slider moves only over a limited range. As you approach the ends of the range, the velocity must approach zero in order to reverse. Is this satisfactory for your purposes?
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You do not have enuff downforce on the right...
Scenario 1 (figure 1)
A continuous loop of elastic material is stretched around two metal bars. The top bar is attached to a load cell that reads force. The lower bar can be moved downwards to stretch the elastic material.
The lower bar is moved downwards until the two bars are 1190mm apart, stretching the elastic material. The bars are 5mm thick, so the total internal loop length is 1200mm (1190mm + 5mm + 5mm).
At this level of stretch, the load cell reads 45N tensile force.
Key numbers...
I'm trying to decide what size and type of galvanized steel I need for 2 cantilever extensions. The cantilever is 5 ft. The space between the two cantilever arms is a 17 ft Gap the center 7 ft of the 17 ft Gap we'll need to Bear approximately 17,000 lb spread evenly from the front of the cantilever to the back of the cantilever over 5 ft. I will put support beams across these cantilever arms to support the load evenly
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