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Without qualification 'motor' is usually taken to mean a rotary electromechanical motor, typically either a brushed or brushless design.

0 votes

How to check for a sharp angle with a line follower?

The problem seems to be that your robot functions by moving its sensors perpendicular to the line; when the line becomes perpendicular to itself, the robot loses the assumption that lateral movement w …
Ian's user avatar
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2 votes

CTL port in a motor controller

From that page, This speed adjuster plugs into the radio control inputs of the motor controllers. So my guess would be that CTL is short for "Control". …
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1 vote

Moving a small plate back and forth

Instead of a threaded rod and a non-threaded rod, use two threaded rods (i.e. replace the red rod in your diagram with a threaded rod) and drive them both from the same motor. …
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0 votes

How do I dispense a greasy fluid?

It sounds like the simplest option would be to put the grease into a pressurized container (e.g. spring-loaded) and control the metering by just opening and closing the valve. That would mean you jus …
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1 vote

How to rotate a dc motor at a fixed rpm

Use a stepper motor, control the step rate, and assume that it will never stall. Allow "fixed RPM" to mean "bell curve of acceptable RPMs". …
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2 votes

What is load current and load speed? Which battery is best suitable for this motor?

Think of it this way: when the motor can't turn (being stalled), it's at its maximum load -- you can't make it turn slower than zero$^*$. … Whichever battery you use should be able to supply just over 10A peak current, if you want to get the maximum performance from this motor. $*$ In practice, you can make a motor run backwards (such …
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0 votes

Robotic winch force sensor

If you know how much force should be on the rope, you could simply mount the winch against a spring that takes that same amount of force to compress. Then, just use a limit switch to detect when the …
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4 votes
Accepted

Difference between planetary and precision gear motors

"Precision motors" and "planetary gear motors" aren't really describing the same attribute of the motor. … Because each rotation of the motor shaft results in a very small movement of the gear system's output shaft, you could also say that planetary gears offer you very fine precision in the output. …
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1 vote

Building an open loop controller for a simple DC motor position problem

In the simplest case, you could measure the motor's acceleration and deceleration -- the position of the motor over time -- and end up with 2 functions. …
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2 votes

Passing power through a motor

Depending on the amount of current you are trying to send, the slight variations in impedance that your slip ring will produce as it spins can damage some motor controllers. …
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1 vote

LM2576 and LM2596 regulator make microcontroller hang

It sounds like the main problem is that you are powering your control electronics and power electronics off the same battery. The battery voltage will drop when it's under load, and that drop seems t …
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0 votes

Risk of overloading motor controller

If the motor itself is rated for 16.8 VDC (or more) then there is no problem connecting it directly to the battery. …
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3 votes
Accepted

Changing tank drive (differential) mode to single joystick drive mode

For that calculation, check out this question on calculating left and right motor speeds based on desired throttle and direction. …
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0 votes

Device to roll a mat

Could you start the rolling with some sort of scraping action, and use rollers to control it from there? For example: http://www.youtube.com/watch?v=5xhbctEcAAA#t=90 The challenge would be making …
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1 vote

What should I be looking for in a DC motor that will be used in a UROV thruster?

In general, if you know about how large of a propeller you want (relative to the size of your vehicle), you should be able to work backwards from there to find the ideal motor torque/RPM to support that …
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