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44 items tagged "motor"
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11:01
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Hack a Day
There are a number of things that can go wrong with an automatic ice maker. But one of the more common problems is that the motor which scoops the ice out of the integrated trays can burn out after years of use. [Dave] recently repaired a common ice maker motor and shows us how cheap [...]
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5:00
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Hack a Day
Never one to pass up the recycle pile at work, [Scott] usually doesn’t find much. A few old hard drives, maybe a ancient laptop every once in a while, but on very rare occasions he finds something actually useful. This latest haul is a gaggle of stepper motor drivers that, with a bit of work, can [...]
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10:01
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Hack a Day
[Lou] is on a hot streak when it comes to interesting builds. This time around he made his own motor using wood, PVC, some fasteners, and a bunch of enameled wire. His method of building a commutator is intriguing. He first builds a rotor by cutting two opposing sides off of a PVC four-way connector [...]
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9:01
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Hack a Day
We’ve seen air fresheners used for many hacks here at hackaday. This one is a bit different as it uses the PIR sensor assembly to turn on LEDs in sequence, rather than reversing a motor. Generally, the motor would be reversed by the fact that this assembly is reversing the voltage on a motor (see [...]
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10:01
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Hack a Day
It’s been a long time coming, but efforts to create Open Source brushless motor controller are finally paying off. The Open-BLDC project aims to create an open source motor controller for the brushless motors usually found in remote control airplanes, helicopters, and quadcopters. Normally, these motor controllers – usually called electronic speed controllers – can’t supply [...]
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15:01
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Hack a Day
Motor driver chip too weak for your needs? Just use two of them. That’s the advice which [Starlino] gives. He stacks motor driver chips to product move powerful controllers. When stacked as shown, the driver combos should be able to drive at 4A. This is partly because he ganged together the outputs in pairs, and also [...]
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11:01
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Hack a Day
Fresh from Microsoft Research is an ingenious way to reduce interference and decrease the error in a Kinect. Bonus: the technique only requires a motor with an offset weight, or just an oversized version of the vibration motor found in a pager. Being the first of its kind of commodity 3D depth sensors, the tracking [...]
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12:01
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Hack a Day
[Chris] continues cranking out the tutorials, this time around he’s showing how to use a CPLD for simple motor control. The demo hardware is pretty basic, he built his own FPGA/CPLD demo board a few years back which used a PLCC socket for easy interfacing. You should be able to use just about any gear [...]
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14:01
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Hack a Day
It’s obvious this bike has some extra parts. But look closely and you’ll see the chainring has no chain connecting to it. Pedaling will get you nowhere since [PJ Allen] rerouted the chain in order to drive this bicycle using an electric motor. He’s got beefy motor which pulls 350 Watts at 24 Volts. For [...]
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9:01
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Hack a Day
Last month, [Vinod] bought a pair of hobby servos on a whim. These servos sat on the shelf for a while until [Vinod] asked his friend what he should use them for. [Achu] suggested using the servos for a walking robot, so after checking out a few YouTube videos of some servo-powered walkers, [Vinod] built [...]
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12:01
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Hack a Day
The folks over at the Cincinnati hackerspace Hive13 were wowed last week by an electric motorcycle built by one of their own. [Rick]‘s new ride is built from a 1989 Honda VTR 250. After removing the 24 HP motor, the frame was loaded up with four deep cycle batteries and a DC golf cart motor. Even [...]
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15:01
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Hack a Day
The fan motor on [Pete's] oscillating tower fan conked out on him. It’s a shame to throw away the whole thing, but it’s near impossible to source parts for a small appliance like this one. So he set out to rebuilt the motor and get the thing working like new. The motor in question is [...]
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7:01
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Hack a Day
[Bruce] sent us another fantastic final project from the ECE4760 class at Cornell. What you see above is an array of 36 near infra red LEDs shining into this young man’s brain for the purpose of spectroscopy. Light bounces back differently based on brain activity (blood flow). For this project, they are mapping their motor [...]
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11:26
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Hack a Day
As a freshman at UC Berkeley, [Keegan] has been helping out with his school’s Pioneers in Engineering program that gives high school students some hands on experience with engineering principles, usually by building robots. This year, [Keegan]‘s project is a motor controller that just so happens to play the nyan cat song over the motor PWM output. [...]
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15:01
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Hack a Day
Unhappy with the 120 degree range of movement for this digital servo motor [Malte] set out to expand its flexibility. He settled upon a hack that alters the feedback potentiometer in order to give the motor a wider range (translated). The test video (embedded after the break) shows tick marks for before and after his alterations. [...]
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11:01
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Hack a Day
[Ben Ardwin] was asked by a friend to help fix an old motor. It needed a new set of brushes. They’re just thin pieces of copper that mount on the motor housing and contact the commutator. The metal is so thin he thought he’d try fabricating replacements by dissolving copper stock. This is not copper [...]
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15:24
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Hack a Day
You probably know that if you spin a motor (mechanically) it generates electricity on what would normally be the inputs. This can be a problem when you shut off a spinning motor and is the reason that protection diodes are built into motor driver circuits. But [Dino] isn’t interested in driving a motor, he wanted [...]
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5:01
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Hack a Day
Here are the power and driver boards that [Miceuz] designed to control a three-phase induction motor. This is his first time building such a setup and he learned a lot along the way. He admits it’s not an industrial quality driver, but it will work for motors that need 200 watts or less of power. [...]
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10:13
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Hack a Day
Experimentations with haptics [Chris] sent in two videos (1, 2) documenting his experiments with haptic feedback. He’s recording the position of a DC motor and can either play it back or send it to another motor. It’s very similar to the kissing robot we saw earlier this year, but we’re not making any judgments. Mobile Emergency [...]
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12:01
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Hack a Day
Here’s a nice little circuit that will drive a motor and allow you to stop its rotation, giving your robot a set of brakes. It’s part of [JM's] post about the in’s and out’s of building microcontroller friendly motor controllers (translated). This particular setup is a half H-bridge. It allows you to drive the motor in [...]
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10:01
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Hack a Day
[Ameres Valentin] was looking for a less expensive way to get around after spending in excess of 100 Euros a month on public transportation in Munich. His solution is an electric bicycle powered by a washing machine motor. It’s a 300 Watt motor that runs on 24 Volts, capable of around 3000 RPM. We’re used [...]
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15:01
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Hack a Day
[Raul] built a cheap linear actuator out of a drawer slide and a surplus flatbed scanner. A few builds we’ve seen, like the PCB drill press or the horribly inefficient thermostat, used linear actuators as key components of their builds. These linear actuators are fairly expensive compared to other parts we usually have lying around so [...]
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9:00
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Hack a Day
Tinywrench is [Tanjent's] take on a motor controller board. It aims to replicate all of the functions that a standalone motor controller chip offers at as low a cost as possible. Early results are in. It works, and as seen can be assembled for about $8. The top of the device offers a terminal block [...]
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6:00
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Hack a Day
We knew our engine hacks theme would come down to an argument over the difference between “a motor” and “an engine” so after much deliberation, name calling, restraining orders, and a duel we’re happy to put up [Berto]‘s DIY trolling motor made out of an electric drill. The project is probably inspired by [Berto]‘s collapsible [...]
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5:53
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Hack a Day
The Arduino has been used for many purposes, and “shields” are available to make many common tasks easier. However, [Nick] wanted a stackable motor driver shield, so he build one himself!. There are many motor driver shields available for the Arduino, however, there aren’t any that allow one to drive as many motors as were [...]
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13:01
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Hack a Day
So your electronic hobby skills are coming along quite nicely but you’re not very comfortable doing more than blinking a few LEDs. Now’s a good time to try something new by driving a couple of DC motors. You probably know that you can’t just hook these up to the pins of your favorite uC and [...]
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10:02
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Hack a Day
[Thanh] has spent some time flying quad-copters measuring 12” motor to motor, but wanted to build something smaller so that he could fly indoors. Instead of building just one, he actually constructed five different quad-copters, with motor to motor arm spans ranging from 10” to just 3”. In his forum post, he highlights the construction [...]
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15:24
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Hack a Day
Brushless motors and the way in which they are controlled can be a bit of an enigma to those just starting out in hobby electronics. [Andrew] from spingarage thought it would be helpful to put together a quick tutorial showing how he built a simple brushless motor controller in about a day’s time. He constructs [...]
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8:01
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Hack a Day
[Chris] sent us this fantastic tutorial, introducing beginners to H-bridge motor drivers. While many of you will consider this stuff basic, those who are trying to expand from building only things the arduino board can handle to bigger more expansive (and powerful) projects will find this quite helpful. [Chris's] tutorial is very in depth, not [...]
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14:01
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Hack a Day
[Nothinglabs] built this motor controller as an alternative to using an H-bridge. They call it the RAT controller which stands for “Relay and Transistors”. You can see above that two Darlington transistors along with their base transistors allow logic signals to switch the relay on and off, driving the motor in one direction or the other based [...]
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8:00
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Hack a Day
There’s the quiet serenity of paddling through the backwoods in a canoe, and then there’s this. It’s a lawnmower motor powered canoe that comes complete with steering wheel, throttle, and a stereo system. To keep the craft balanced the driver rides in the front seat while the motor is hanging off the stern of the boat. The [...]
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9:40
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Hack a Day
[Isaac] grabbed the motor from an old printer and used it to make a spider run up and down the wall for Halloween. A PIC 12F683 uses a MOSFET to drive the motor. The program loop has a little bit of dramatic flare to it, raising the arachnid with a bit of a jerky motion [...]
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9:56
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Hack a Day
[Rob] just finished reinforcing a cheap drill motor. He picked up the tool at Harbor Freight and ditched the case. The plastic retaining ring was replaced with a thick metal washer which he machine The washer uses three bolts to attach to the mounting plate that he welded together. We’re not exactly sure what he’s got [...]
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6:25
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Hack a Day
While hobby brush motors are pretty cheap now adays, there’s always that feeling of why replace when you can rebuild and reuse. As such [John Carr] presents how to change the brush position in motors to revive a dead motor. So long as the motor dies from natural causes commutator wear, the idea is the [...]
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8:17
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Hack a Day
[Craig Carmichael] has been hard at work on his electric hub motor for cars. Unlike typical electrical vehicles the plan is to bypass the transmission, differential, and everything else all together by connecting directly to the hub of the wheel. The goal of giving greater thrust and still allowing the use of a gas engine [...]
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10:00
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Hack a Day
[Darrell] is using a sound card to drive this servo motor. The motor draws power from a cellphone battery with the control signal coming from one of the audio channels. It’s not too surprising that this works since the motor just needs a PWM signal to operate and that’s what is used to create the [...]
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9:00
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Hack a Day
Here’s a solenoid motor you can build from a VCR head and some common components. It uses an LED and a light sensor, paired with an LM311 comparator to manage the switching of the motor. As the head turns, the LED shines on the sensor through a hole and triggers a TIP120 transistor to turn [...]
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14:05
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Hack a Day
This bicycle add-on uses an electric motor to help you out. This way the motor takes advantage of the gearing normally available to the cyclist. What interests us most about the system is the DIY battery work they’re doing. The cells are using Lithium Iron Phosphate technology. The li-ion cells you’re used to seeing in [...]
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5:55
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Hack a Day
Reader [Hjhndr] ran across an interesting set of tests and wanted to know if they’re brilliant or just a load of bull. We’re not making the call on that, but the tests on a Steorn Orb motor replica are worth looking at.Keep in mind, people used to think the earth was flat and scientists of [...]
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8:00
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Hack a Day
Hub motors put the power inside of the wheel. [Teamtestbot] goes deep into the hows and whys of building these motors, from parts, to windings, to the math behind the power ratios. The working example puts an electric motor inside the rear wheel of a Razor scooter. Past projects used belts to transfer the work [...]
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6:16
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Hack a Day
[Stefan] sent in this project writeup to show us how he used a stepper motor as a rotary encoder. Using a stepper motor as an encoder isn’t really that new, as [Stefan] points out, we’ve seen it several times before. He wanted to use this in the quickest simplest way with his computer though. Instead [...]
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