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Linear Actuators


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  • Flexinol Moving Butterfly (Blue Morpho)
    Maybe a lemon
    Review by David
    Item arrived on time. When plugged into the wall or the battery pack, would operate so slowly and intermittently, that at first, I was certain that it didn't work at all. When it did work, the wings would close, then stay that way for several minutes, if not longer. Then they would open very, VERY slowly. Eventually, sometimes seconds, sometimes minutes later, they would spring closed again, and stay that way for several minutes again. This was not a "gentle" flaping motion, it was close enough to NO flapping motion as to be useless.

    -----------------------------------------------------------------------------------------------------------------------

    We are sorry to hear this. We have many satisfied customers of this product and it should close and open very slowly then wait a few seconds and start closing and opening again in a very smooth motion. We will be in contact with you in order to replace this product under warranty if you are still seeing the same behavior from your butterfly.
    (Posted on 7/7/14)
  • L16 Linear Actuator, 12V w/ Potentiometer Feedback
    Functional
    Review by Andis
    Pros:
    good force
    precise potentiometer
    sturdy

    cons:
    a bit loud
    (Posted on 7/2/14)
  • 8
    Great product
    Review by Karl
    Product was shipped quickly and it works just as described
    (Posted on 6/27/14)
  • Flexinol Moving Butterfly (Monarch Butterfly)
    Excellent
    Review by Scott
    Satisfied, made a great gift.
    (Posted on 5/29/14)
  •  2-4 Channel Remote Control System
    Very good - would like more antenna options
    Review by Ben
    Product works great and is robust. However enclosure is not water proof, and the antenna is not removeable. So to put it inside another enclosure you better make sure it is plastic and that the antenna won't be blocked. It would be 100% perfect if you could attach an external antenna to the receiver board when mounting inside a metal enclosure.
    (Posted on 5/12/14)
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Full Metal Dalek, Fiction Meets Dedication

Posted on September 19, 2013

By Carlos Asmat & filled under Entertainment.

Making replicas of robots seen in movies is not uncommon and there are many replicas of R2D2, Wall-E and Jonny 5 to name a few. Many of these incorporate a high level of detail while being faithful to the original robot’s look and feel. However, most of these replicas do not match (or at least [...]
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Arduino 5 Minute Tutorials: Lesson 5 – Servo Motors

Posted on April 25, 2012

By Coleman Benson & filled under Arduino, Electronics, Schools & Curriculum, Software and Apps.

Lessons Menu: Lesson 1 – Software Downloading / Installing & Interface Lesson 2 – Basic Code Lesson 3 – Sensors: Potentiometers Lesson 4 – Sensor: Infrared Distance Lesson 5 – Actuator: Servo Motor Lesson 6 – Sensor: Force, Bend, Stretch Lesson 7 – Sensor: Accelerometer, Gyro, IMU Lesson 5 Hardware: Computer / Laptop or Netbook [...]
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Basics: What is a Motor Controller?

Posted on February 20, 2012

By Coleman Benson & filled under Where to Start.

A Motor Controller is a device that acts as intermediary between your robot’s microcontroller, batteries and motors. A motor controller is necessary because a microcontroller can usually only provide roughly 0.1 Amps of current whereas most actuators (DC motors, DC gear motors, servo motors etc.) require several Amps. The current a motor consumes is related to [...]
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Basics: How Do I Choose an Actuator?

Posted on February 20, 2012

By Coleman Benson & filled under Where to Start.

An actuator is a device that converts electrical energy into physical motion. Choosing the right actuators (which include DC motors, gear motors, servo motors, linear actuators, muscle wire etc.) requires an imagination and a bit of math and physics. The vast majority of actuators produce either rotational or linear motion though combinations thereof can lead to complex motion. [...]
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How to Make a Robot – Lesson 9: Assembling a Robot

Posted on August 02, 2011

By Coleman Benson & filled under How To Make a Robot.

Lessons Menu: Lesson 1 – Getting Started Lesson 2 - Choosing a Robotic Platform Lesson 3 - Making Sense of Actuators Lesson 4 - Understanding Microcontrollers Lesson 5 - Choosing a Motor Controller Lesson 6 – Controlling your Robot Lesson 7 - Using Sensors Lesson 8 - Getting the Right Tools Lesson 9 - Assembling a Robot Lesson 10 - Programming a Robot Now that you [...]
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3
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63
views
What is the stroke length and how do you want to operate it (on/off/reverse)? How would you power it (12V lead acid battery?)
You can likely use some linear actuators: http://www.robotshop.com/en/standard-actuators.html
2014-06-23 08:55 by CBenson
2
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71
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... what happens if you leave the setup outside, since almost none of the actuators we sell are water resistant and would be affected by rain, high ... control actual position rather than speed and direction, you'll need a linear actuator with built-in potentiometer such as: http://www.robotshop.com/en/6-stroke-150-lbs-force-linear-actuator-w-potentiometer.html ...
2014-05-22 13:48 by CBenson
15
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370
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... SES V1). The approach will still be to use modular frame components and actuators, but reduce the overall number of different designs. For example, ... forward to your feedback! * Body shape. I've built both oval and linear hexapods. Need to order a round chassis. An oval chassis or round ...
2014-05-08 14:43 by KM6VV
1
replies
132
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... the card only really move in one direction? For example would a small linear actuator do the job? http://www.robotshop.com/en/actuators.html If you don't care much about position, could you hook up a 4-bar mechanism to ...
2014-04-14 08:11 by CBenson
5
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... insight: http://www.robotshop.com/blog/en/how-to-make-a-robot-lesson-3-actuators-2-3703 You would likely need to consider either a stepper motor ... DC gear motor with encoder; both of these need to be programmed. A mini linear actuator with approx. 4 inches of extension. Something like the RB-Fir-90: ...
2014-03-31 13:19 by CBenson
10
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... motor, or a brushless motor? This would allow me to use a belt driven linear controller. http://www.robotshop.com/blog/en/how-to-make-a-robot-lesson-3-actuators-2-3703 None of these really "remember" their position since they don't have any onboard ...
2014-03-03 15:12 by CBenson
3
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600
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Hi ss25, What kind of weight will the linear actuator need to handle? There are L12 linear actuators that take many different signals and one can take PWM so it will always position (internally) ...
2014-02-27 10:19 by DiaLFonZo
3
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600
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... and was hoping to get some help. I'm going to be using a servos and a linear actuator to move an object. I think the servo portion I can handle ... of the object on plane. I looked at the Frigelli site, but the tracked actuators don't seem to have potentiometers to control the movement along ...
2014-02-26 17:10 by ss25
8
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1578
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... bit is meant to remove material whereas a lead screw can be used as a linear actuator. If you want the system to "know" it has reached an end position, ... is to use an RC linear actuator: http://www.robotshop.com/en/firgelli-actuators.html
2014-02-25 09:33 by CBenson
1
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612
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You can use a small DC linear actuator: http://www.robotshop.com/en/firgelli-actuators.html Certain versions can be directly controlled using R/C. Perhaps the following article will help ...
2014-02-04 09:09 by CBenson
15
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... I am hoping this is not redundant; I am trying to actuate a few linear actuators IN A SEQUENTIAL manner. I am using motor shield v2 and arduino mega 2560 with firgelli ...
2014-01-20 12:55 by behzadjk
4
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1526
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... for every key 3) rotational actuator coupled to something which does linear motion and finally something to press the button (like a solenoid) DC linear actuators are not very fast, and you would need additional actuators in order to be able ...
2013-12-16 09:07 by CBenson
4
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1526
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Hello, I have a question about actuators. Suppose I wanted some kind of actuator/motor/mechanism that could physically ... on my laptop keyboard - what would I need? I'm looking for something akin to a linear actuator only that I dont need to control distance; I would need it to simply ...
2013-12-14 17:56 by mugged
3
replies
662
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... outputs in a higher price class, but I can't find any of those (tips?)! The second part of the Still rings situation is that we have 2 lineair actuators connected to 1 control box in the upper frame of the system. This part of the system is used to lower the upper bar with a screw to adjust ...
2013-12-11 07:48 by Stillrings
2
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268
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... the setup so we have a good idea of what you are looking for? There are linear actuators which can be controlled using R/C servo signals, but to get the stroke you need, ...
2013-11-14 09:16 by CBenson
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