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Movement simulator platform

We are in search for ideas and/or off-the-shelf solutions for a mobility and toileting issue in response to the following request: "The project proposal is called a \"Movement Simulation Platform\" which is intended to provide amazing sensory experiences for our students who would not be easily accessible to them otherwise.  The idea is to have the students pushed onto a large platform in their wheelchairs in front of a large screen (screen not part of project request).  On the screen will play some fantastic scenes such as hiking up a mountain, visiting different countries, driving a car, riding a roller coaster, etc.  The platform will also allow for very minor movements in all directions through the assistance of the adult holding the wheelchair (also standing on the platform).  We are imagining a very small displacement of movement in all directions (similar to a rocker board).  The platform would need to be a good size with borders and possibly a way to secure the wheelchair to the platform." Happy to hear your ideas! About Tetra Tetra is a non-profit organization that recruits skilled volunteers to create customized assistive devices for people with physical disabilities. See our instructables group at:

Topic by chuirich    |  last reply

SketchUp Movement simulation

Usually I'm using SketchUp 3D designs to create the models before I start my projects but unfortunately its all solid objects ..Now I need more capabilities using an easy way to simulate the movements of my models especially when it related to a Robot Project.Thanks,

Question by ahmedazouz    |  last reply

Astable circuit movement?

Hi im using the circuit and the calculator in this link it works fine , but the movement from (low) to (high) goes very fast and sudden , and so the movement from low to high . what i want is gradual (ascending) increase from low to high , like 4 seconds or something , then sudden decrease to low , then gradual increase to high again , and so on what changes should i do , or what circuit should i use ? any links or information would be helpful thank you  :)

Question by lu2a    |  last reply

detect earth movement

I live very close to very busy highway.any way to build cheap seismograph to see & record my house shaking when overloaded semi goes by ?? (nothing against drivers )

Topic by swoogydew    |  last reply

Led movement how to?

Hi people, i am trying to find some one here to tell me how i can make a line of led. to move from one point to another. to help you understand what i want go to youtube, and find any video relating to tosh from starcraft 2. he is the jamaikan assasin. i want to make the same thing in my car, and a lot of people tell me that i can make it with only 5 to 10 leds... and i want to make two pair of lines the one 40cm and the other a 100cm... does anyone know a way to make it? p.s. i am super noob at electronics, so anything that you will write, i will tell to a friend that knows about electronics :) thanks a lot !!!!

Topic by HYPER_piccolo    |  last reply

How to replicate this Breathing Movement ??

Hi Everyone ! Does someone know how to make a breathing motion like this ??? Thank you for your help :-) Starky001

Topic by Starky001    |  last reply

MPT - Movement Poise Thrill

MPT Movement Poise ThrillSaturday June 28, 2008 6:07.08pmA movement is beginningOn 28 June, London will be transformed. The banks of the river will flood with people, all waiting for the signal to freeze. Yet not frozen but poised: ready to discover what happens next.There are rumours the concrete cityscape may become a dance floor, a film set, a rocket launch-pad... nobody knows for sure...There are two things you can do to learn more.Come to the South Bank on the 28 June ready to freeze on the signal just after 6:07:08 pm.OR if you would like to be involved more as an Adventurer or a MoverMail [] nowOpen to all, families, kids, groups of friends so come and join in..Grandma will be there to help youMPTHide and Seek in association with Coney and body>data>spacebody>data>space and Seek is a festival of social games and playful experiences, running in London from the 27th to the 29th of June 2008. It will encompass everything from fine artists making location-based work to huge flashmob games within the public spaces of the Southbank Centre.

Topic by bodydataspace    |  last reply

Maker Movement Gaining Recognition

Tim O'Reilly has some really nice things to say about Instructables and our community of people building things and doing it themselves over on the O'Reilly Radar post Maker Movement Gaining Recognition.In addition, what today is "do it yourself" is tomorrow's big business. The hacker building homebrew robots shows us something about the future of robotics. The crafter incorporating technology into traditional crafts shows us something about how computing is becoming pervasive. The folks playing with laser cutters and 3D printers are telling us something about the future of manufacturing. The folks hooking up sensors to tie physical buildings to their analogues in Second Life are telling us that the future may not be in virtual reality but a new kind of augmented reality.For a long time, Tim has had success identifying trends by looking to hackers to see what they're up to and how the problems they're solving will soon become mainstream. So, what problems are you working on right now? What's you're next Instructable that's poised to go mainstream?(The image is from our July Show and Tell.)

Topic by ewilhelm  


I need to know how to make an automat  wood toy pleased help mee

Question by ivonne García    |  last reply

simple machine to provide/create movement?

Want to use/alter or create a machine which will produce simple repetitive movement (for instance, to power the arm of a dummy (to shake it) or to move a dummy's head back -n- forth) for halloween.? help will be much appreciated! have no idea how to go about this & not a lot of skill (but probably have the necessary equipment)

Question by kbaleigh    |  last reply

Program to crop video according to movement?

Does anyone know of a freeware program which will crop a video clip according to the section of the frame where there is motion (eg track a person walking across a room from a fixed camera)?

Question by Jareadx    |  last reply

The Middle East and the Global Hackerspace Movement

Please follow me and imagine this. You're in a city and are taking a rattling train somewhere to the edge of town. The buildings get shorter as they get wider. You are entering the industrial area where the jobs dried up long ago. Where there are more broken windows than whole ones in each building. You pass the streets your parents warned you about and a street covered in "DO NOT CROSS" tape. Two stops later you get off at the stop your friends told you about questioning your sanity and wondering why your friends brought you out there. The graffiti is beautiful though, and somewhere in the distance you can hear the thump of heavy bass. The address your friend gave you can't be right, you look up and see a massive complex thankfully this one seemed to have more of it's windows intact. You push the rusting door noticing the rough texture and surprising heft. You walk in and see a roughly refinished hallway. The drywall isn't yet painted but it appears that this massive factory has been transformed on the inside. You pass a few drywalled off artists studios on the first floor and they smile at you with plaster in their hair. It smells like lavender and you notice you just passed an artist making candles. The "hackerspace" your friend told you about is on the second floor. So you walk to the cargo elevator and push the call button. It makes a horrifying rattling sound as it descends to meet you, instead of a door it has a grate. You take it up and as it slowly moves you can see concrete, then wood and suddenly the thumping bass get's louder - Hello Skrillex. It's too much to take in at first, you only notice the chaos. There are tools everywhere and in every state of operation. A wall of computer monitors lines the back wall. There's someone binding books in the corner, and what appears to be a viking with knitting needles sitting in what appears to be a lounge, he looks up and smiles at you and says "welcome to Scrumspace*!" you've arrived at your first hackerspace. Notice an open basket of dollar bills and place a 2 dollar donation in the basket near the fridge and grab yourself a drink from the fridge in the kitchen. You walk into a common area painted like a scene from Super Mario with what appear to be server racks painted as the tubes. Finally you see your friend. He walks in with a scorched shirt and you see his eyes twinkling through the welding goggles. "Told you this place is awesome!" he says. Hackerspace Values and Culture Hackerspaces like this exist almost all over the world. These places collect (and perhaps helps inspire) people who are passionate initiators. Walking into one you might find someone who wants to share a new iPad application which monitors the GPS on the weather balloon they've released -"It's over //CHINA// right now!!". People in hackerspaces are happy to share, it's a part of the culture! Interacting with them is often uplifting and inspiring. They are building and creating things they think is amazing. They may be playing with technology or science or art without concern for the categories. The only apparent question they ask themselves is how AWESOME is this!? It's a contagious atmosphere of capability where people learn from each other constantly. They can't help it! People are so passionate about what they are doing, they inadvertently teach. The other feature of a hackerspace which is more important is that they give people a venue. It's an open space that is owned by the members. Need a place to host a workshop on hat felting, it's yours! Need a place to build the first prototype of your product? Just make sure you pack it in the lockers when you're done working on it! The atmosphere is fundamentally collaborative. It can't be anything except participatory because of the way the spaces are most often organized and run. There is no single owner. Everyone pays for a portion of the rent, and more importantly everyone brings something new to the table. They might bring with them a new tool, their coffee machine, a desire to set up a program to run a STEM program for children. The spaces become a snapshot the local community of amazing people and their projects. Many of these people started developing their projects during their final years in university. But their is a gap between a school project and feeling capable to take it and turn it into something yourself. I'd love to start here. With these fresh graduates. These young people who (perhaps not coincidentally) are also the driving force behind the revolutions of the middle east. This is a great place to start. These are the young people changing their countries today. They feel empowered to change long standing traditions and the culture of oppression in their governments. Perhaps it's also time to give them the tools to do the same for their local communities. Where they have the ability to have a more direct impact. Who the heck cares about the government if you are free to repave your roads, create alternative energy from solar power, clean your own water and start your own online webstore distributing products that are rapidly prototyped and drop shipped to other places around the world. Sure you might call this line of reasoning anarchistic. But when the systems around you are falling apart, banding together to pick up the pieces is the admirable thing to do. Social entrepreneurship in the states often focuses on countries outside the states. They basically act as for profit NGOs. Non profit organizations as they operate in America don't exist in the middle east. Thus I'm beginning to think that the concept of social entrepreneurship might just be a great way forward for these countries. Doing well by doing good! This concept is a development hack, and one that could possibly have it's roots in the Hackerspace scene. There are features of hackerspaces that I see can give rise to more DIY social entrepreneurship in the middle east. They are: 1) The culture of good. Make something wonderful. Share it with others online and off. Be inspired and inspiring. 2) The availability of tools along with the docracy culture. If you want to see it, do it. 3) A supportive global and local community which has within it stories of other successes to emulate. Where does this culture come from? It appears to be derived from the open source movement. Open source technology is often spearheaded by a few individuals but is maintained, built and supported by a global community of makers who want the tech for themselves as well. Do you want to see that feature? Write it? But don't edit the program and keep it to yourself! Share! That's a doocracy combined with the culture of sharing that the internet helps so much to support. All of this seems to be directed by the common value for people of all ideologies. The golden rule. Do for others as you wish to have done for yourself. Do you want free tools. Freedom. Access to clean water? A cheap space to build projects? Free vector drawing software? Be a doer. Be a part of the change. And then share with others. Your vision is what makes the future. These are some of the amazing features of these spaces. This is why I am in love with hackerspaces, open source technology and makers of all types. They are beautiful people who come from all types of backgrounds who get together to create a culture of sharing and collaboration that enhances their local communities and connects them globally. If you have not visited your local hackerspace yet, visit it. If you live in a place without a space, put your name up on, I'm sure you will find like minded people who crave this type of community. Hackerspaces in the Middle East Now that we have described hacker culture and hackerspaces can a space like this become a the hub and home of amazing people in the Middle East? Does the west have a monopoly on awesome. Absolutely not. Are middle easterners creative Heck yes! Are they inspired to work collaboratively? Heck yes! Are they educated? Heck yes! Do they want to fix the problems they see around them? Heck YES! Are they powerful? Heck YES! Again and again I've seen example after example of the young people in the middle east (yes, those that are 30% unemployed) showcasing example after example of incredible projects. And talking to them a message I hear over and over is that they want to show the world that in Beirut, Baghdad, or Cairo things other than violence is created. They want to create positive news that goes out to the world. They want to reach out to the world and participate in sharing! Here's a short list of incredible people I've met personally in my two short trips to the middle east: Bassam Jalgha Tarek Ahmed Ahmed Tohamy Salma Adel Rami Ali's Smart Breadboard Marc Farra Maya Kreidieh Cairo Hackerspace Book Scanner Project An awesome home automation system in Baghdad Iraq Mustafa Elnagar Furkan Alp Pehlivan Hind Hobeika's Butterfleye Project Jad Berro's Tank Robot Mounir Zoorob Octocopter! Here's a video of Munir's octocopter: Beirut is beautiful:   One incredible graduation project by Cairo Hackerspace organizer Salma Adel is one that focuses on the very heart of the maker movement and looks at the artisan as the creator of value. How do you take new design, match it with old technology and create amazing new products. I'm proud to know she's an active memeber at Cairo Hackerspace:  I hope I have shown you that there are already "hackers", makers and entrepreneurs there in the middle east. People with the open source attitude Arabs with the culture of sharing and collaboration. There are many here that work with the Google Technology User Groups or other open source initiatives. Linux user groups. Tons of coworking spaces. And some incredible incubators and entrepreneurship cultural development projects. Android phones are more popular in Egypt than the iPhone from my own small survey. It might have initially started as a cost issue has turned into a passion with Ubuntu, firefox, Android and other open source technologies really taking off. A few things were missing though. If you read hacker news you will begin to think that anyone with a desire to make foursquare mashups is an entrepreneur. In the middle east we have incredibly skilled people languishing after college while their counter parts in the west are out attempting to recreate Facebook. Why?! I think it has to do with the lack of proper story telling about entrepreneurship in the Middle East. Wamda seems to be helping greatly in that regard, but we need more publications talking about this issue! This also comes in concert with an inability to find cofounders. Why? A lack of collaboration? Why? A lack of self initiated projects? Solution? Do stuff. Just do it. Where? Here. At your local hackerspace. Do you have an interesting idea you want to try? A drone to take ariel pictures of the pyramids? Or a service like Utlub which delivers soap to bathers who are wet and realize they ran out of soap. Well in a space like a hackerspace you can do it! The tools are there. But more importantly you will find collaborators! People who are willing to jump on board to help!al Patterns of Propagation The Arab world is not just ready for Hacker culture, hacker culture is already there. My work with GEMSI is simply to connect the right people together and showcase the awesome possibilities hackerspace afford their communities and attempt to create the right environment to allow these amazing people to take their own future into their hands like they already are, but to do it not only politically, but financially, and with direct community education and organizing. Before I went to the middle east I was privileged to participate in the rise of the hackerspace movement in the United States. In 2007 there were very few (if any self identified) hackerspaces in the United States. That same year Mitch Altman, Bre Pettis, and Nick Farr went on a trip to Germany visiting the hackerspaces that were there. Being filled with inspiration and the realization that these spaces were created by PEOPLE who wanted to set them up. They came back to the states and started Noisebridge, NYCResistor and HacDC respectively. Due to the culture of sharing, they started putting up projects online. They shared the process of creating these spaces. And slowly at first people started noticing that they too could start their own local community spaces for creation and we started seeing them grow rapidly. The mathematical name of the function that describes this type of growth is exponential. The more spaces that existed that have this culture of sharing the more people heard about them and wanted them in their own cities. Then something wonderful happened. The economy collapsed in 2008 which had two very positive effects on the development of hackerspaces:  People were freed from their jobs  Space was becoming cheap as tons of manufacturing facilities were abandoned. Check out this chart which shows the rapid growth of hackerspaces and the acceleration around 2008/9. Hacker culture is an attitude that anything can be done by any resource available. MacGyver will make you a mouse trap from your sunglasses and your underpants. A hacker would use it to make a one way privacy screen for your cellphone. But how do you transmit a culture? This is why a space is so important. Having a place where people can sit with others and recognize the possibilities. To see the value in the stuff they know, to share it with others and to build together. The first few hackerspaces that are being set up in the middle east have the same property of viral transmission as we saw in America. Istanbul Hackerspace and Base Istanbul are both hackerspaces in Turkey. Istanbul Hackerspace being in the European part and Base Istanbul in asian section. As widely spread apart as they are, they both have something in common. Both founders had visited a hackerspace, one in Japan and the other in Germany before coming home and deciding they wanted to start one there. It's kind of incredible to see the same pattern repeat in the middle east. This appears to be a universal need, the need for community, creativity and having a open space to build your future. The pattern has been proven in Egypt as well. Alexandria's hackerspace initiative was galvanized after a delegation of students visited  Cairo Hackerspace two hours to the south. It's exciting to see the very same forces at work that took the hackerspaces from being a concept barely known to having a large impact on the American Entrepreneurial and cultural landscape in five short years years at work in Egypt. Cairo Hackerspace currently is without their space but is actively seeking a new one and it's one of my current goals to help in any way I can. Let's conclude with the list of hackerspaces just starting up in Egypt and Beirut. This is just the start. Keep an eye on these guys and know that there will be many many more to come: Egypt: Cairo Hackerspace El Minya Hackerspace Alexandria Hackerspace Mansoura Hackerspace Egypt Fablab (Same idea ;) Lebanon: Beirut Hackerspace (link coming soon) If you'd like to talk more about the global development of hackerspaces. Let's continue talking online at GEMSI's facbebook group. *Scrumspace does not exist as a hackerspace. If you like the name take it!

Topic by lamedust    |  last reply

The return of DIY - the history of the maker movement

As a total beginner to the Maker movement who was born in the 70's, I am really excited about people returning to DIY, something that's been out of favor for the last 20 years. I wrote a brief article that gives some historical perspective, but I really want to capture a lot of the recent history of a really incredible movement. What are some of the significant events that shaped the maker movement?

Topic by dkeith-lucas  

Teaching others about the maker movement

I am conducting a session about the DIY movement and resurgence in crafting at a conference in a few days.  I tend to be a pretty off-the-cuff speaker but thought i'd solicit some input from this community. Specifically, I'll be addressing professionals that could be using this information in providing community programs along these lines - imagine the local community Parks and Recreation Department doing a class on Arduinos or soft circuits... Any resources you think I should be pointing them to?  Compelling reasons for turning the public on to this movement?

Topic by zieak    |  last reply

CDROM stepper motor problem with movement

I have been having intermittent problems with my cdrom stepper motor. I had a four pin motor soldered to a bare copper wire. I used the pins not the little ribbon cable and I left the ribbon cable attached because I figured, as soon as I snip it off I would regret it later. The other end connects to a breadboard that is in line with the stepper input to the EasyDriver motor controller. I have been using GRBL controller on my PC and when I tested it the first time in a vertical position it would just wobble around, not moving up nor down. I thought the stepper motor was bad so I got another one. The second was wired the same way, 4-pins, and it worked in the vertical no problem. Then later, while working on the rest of my project the second cdrom motor that was working did that same wiggle without moving up or down. I realized that the solder connections were very close together and that two pins were electrically connected. I modified the wire to basically a homemade male to male jumper wire. The extra pin made the room I needed to unsolder the two pins. Once again the motor worked up and down with no wobble. I have done nothing to modify the cdrom stepper any further and went to test my motor today after a couple weeks hiatus and once again, wobble with no up nor down motion. At this point I am stumped. I have reason to believe that my solder skills are lacking and that my homemade jumper has broken internally inside my shrink tubing where I cannot immediately see it but If anyone else has had this problem and knows how to rectify it please let me know. I hope there is enough info here laying out my problem and that someone can lead me in the right direction. If it also helps, I have checked my pin out and I do not feel it is backwards or crossed. I checked the resistance between the four pins and the end of my "jumper" and is approximately, 40, 20, 40, 100 ohms for A-, A+, B-, B+, respectively. I am really not sure what these number would mean but my buddy told me to check the continuity from end to end.

Topic by dankozi713    |  last reply

Movement sensor to trigger an electric motor - supercheap!

Hello Any electronics whizzes out there? I want to develop a kids toy that reacts when a child moves within a certain range of it. (Remember that game "Grandmothers Footsteps" where you have to creep up on somone but become motionless when they turn around - if you're caught moving you're out.) The sensor and the circuitry (and some moving parts) need to be able to fit inside something the size of a pint glass, run off batteries and preferrably be drawing no current when no-one is in range. Please - if you have some ideas on this drop me a line and I'll explain further. thanks for looking this far! Julius (London, UK)

Topic by julius100    |  last reply

creating movement- pulsed coil magnet? other ideas? and how to accomplish?

I'm wanting to swing a small pendulum around (randomly would be nice).  I'm figuring something like is inside this candle would be the best method: However, I don't know where to buy or how to make this (I can make a wire coil, but not program a chip to turn power to it on and off).  The candles are too expensive to buy to take apart.  Does anywhere happen to sell just that piece?  It would be great if I could just buy it, hook it to my 3v power, and I'm all done. Or does anyone have other ideas? Thanks.

Topic by aliasjanedoe    |  last reply

I want to make a sensor which can detect the dingo trap movement

Hi guys, I want to make a sensor which can detect the dingo trap movement as I want to know if any dingo is trapped or not. I want it connect it with a dragino MS14( in 14 positions screw terminal). I have many traps in my farm and my part is to make a sensor and find a way to connect it with dragino MS14 14 positions screw terminal. Else will be handled by my fellow participants in the project.  Does anyone have a any kind of knowledge about it?

Topic by ramn0004    |  last reply

How to make cylinders move in a serpintine pattern

I am creating a sculpture that has a very complicated movement that I am struggling with.  I have a shadow box containing 2 rows of two foot long one inch diameter cylinders. I want them to "weave" back and forth in the shadow box. I thought about cutting out a track from a 1/4" plate and mounting it on the top and bottom of the box. Than placing a motor  inside one of the cylinders connected to a shaft and a gear that would ride in the track. I like this idea but, I do not know how to overcome the problem of where the track crosses itself. (the track would look like multiple figure 8's) Any ideas on this or better ideas? Thanks for your help!

Topic by cramnager    |  last reply

real-time multiple objects movement tracking

Hi all. is it possible to tracking multiple objects movement in real-time with a webcam or hdcam or ircam? i don't need skeletal motion capture data, i just need 2D top view coordinates of objects in an area and tracking them till the event finish... is this possible and how? thanks

Topic by kenshin3d    |  last reply

Tips for Miniature carousel up and down movement

I am making a miniature carousel for a decoration on my bookshelf. I like to make a kind where the horses go up and down. I got a motorized lazy susan (which already goes around with it´s built in motor) so the basic rotation is there already. What I just need to figure out is how to get the horses go up and down for couple of inches. What electronics should I use for the up and down movement? I´d prefer to use batteries for the source of electricity for these. I was checking solenoid c:s on a electronics website but had hard time finding a slow ones that would work and/or don´t know how to slow them down. Thx!

Topic by carouselman    |  last reply

Detect finger movements while playing a piano?

I'm planning on generating the sheet music automatically while playing  a piano. However i need to first find a method to differentiate the notes played by the left hand from the right hand. My lecturer suggested i find out the points in the wrist where pressure is exerted when each finger is flexed (left hand). Is there a way to do this simply? Or are there any products, such as wristbands with in-built sensors to sense when a finger is flexed? I only need to know how many fingers of my left hand are used at a particular moment while playing.

Question by MissyJJ    |  last reply

Human finger model movements DC activated.

Hello good folk I have been working on some artificial finger extensions and retraction via a DC motor. An H-bridge is used which is connected to a dial switch. The tendons are braided fishing line. It has proven worthy during the prototype stage. The advantage of my design is that a single DC motor of servo can control movement and grasping of the entire finger. This design particularly excels when compared to the most advanced models at the moment.... The Shadow hand would be an example. Extremley capable yet the muscle collection to the rear of the hand makes their model obsoliete even before it was created. Much work needs to be done on their model to make it effective. I apologise for the pics (camera phone) as the detail leaves much to be desired. This is just a functional model of the unit, so it's not ment to look pretty. It only purpose is to serve as the concept base as I was trying to get the tendons/joint configuration worked out... You should notice the holes in each section, the tendon passes within the finger segments within a sheath embedded inside the epoxy segment. The tendon is only exposed at the joints which also need to be finished with a exterior protectant layer. I am posting these as an example of the funtioning finger. However I would like to post videos at a later date.

Topic by Lftndbt    |  last reply

Annoying cursor movement when formatting is used

This bug has probably been documented thoroughly, and nearly every single person who writes an instructable must know it by now. When you use italics or bold (I'm sure there's more) when writing, the moment you backspace it goes to the (most previously written) italicized font and backspaces it instead. When you're still writing the word (or phrase) it goes to the back of the word. For someone who is in the middle of writing a massive instructable documenting nearly everything I know in Microsoft's shell scripting, it's very annoying every time I use italics to distinguish between normal writing and code, only to have to rewrite it after backspacing one of my typos. You can recreate this (assuming it happens for more people than just me) by adding a comment, licking on the rich editor, writing some stuff, write in italics and then backspace. I'm using Google Chrome, and I don't think screenshots would help here. Thanks.

Topic by Prof. Pickle    |  last reply

Detecting Very Slight Tendon Movements In Wrist

I've always had an intense fascination for lucid dreaming. Finding ways to communicate or control outside devices based off the slight body movements that are possible despite the natural paralysis during sleep is a topic of great interest to me. I have several LDs (lucid dreams) each night and through much experimentation have found that with a bit of concentration, I could move my fingers enough to trigger very sensitive buttons (if placed perfectly before falling asleep) or to grip myself (if my hand is placed say, near my neck before intentionally entering a dream from waking) such that the sensation of my fingers reaching my neck would wake me. These experiments were proof enough that if I perhaps had some sort of glove or wrist mounted piezo sensors that are able to detect the individual tendon/finger movements with high enough sensitivity, combined with software that can parse patterns and reliably filter out minor unintentional simultaneous movements for the fingers that are prone to movement when others nearby are moved, it would be possible to establish one way communication with outside devices, the Internet, etc. Input could be in the form of different patterns or even text (tap code, morse code, or through a hybrid allowing use of each digit of the hands) or musical notes (each finger representing a note of a scale with a finger or two used to change octave or to toggle sustain.) As a musician who "writes" his best music within his dreams, this could be quite handy for getting melodies down before they vanish from memory on waking. For example, to activate input, you could perform a simple pattern that is unlikely to be triggered unintentionally. It could be as easy as left thumb flex, right thumb flex repeated in that order several times. From this point, you could use another pattern to choose to trigger an alarm (sound, vibration or electrical shock), or to initiate musical or text recording. There are many different uses that could be explored, and it might even be possible that 2 way communication could be established if a reliable method of transmitting to the dreamer without waking them could be created. This is however beyond the scope of my intentions. I have suffered from sleep paralysis on a nightly basis for over a decade now which can be extremely frightening and last up to several minutes, and during this time I am able to move my fingers as well as shake my head back and forth (which I need to do to break out otherwise the paralysis will persist until I'm pulled into a nightmare.) My solution to these terrifying experiences was wearing a heart rate monitor with an alarm that goes off past a certain BPM, which only happens when I am frightened. Now that I am so used to these experiences, my heart rate does not increase enough that I can reliably use it as a trigger without also waking myself out of exciting dreams that I'd rather not have prematurely terminated. I am fairly confident that a device such as this could help with breaking out of my paralysis at will and PERHAPS even be sold commercially to other sufferers of this condition, however niche the market. Giving me control over my sleep paralysis alone would be a highly satisfactory result with significant quality of life improvements and be worth the effort of building this. Waking up partners in bed with my head thrashing is less than ideal! As an avid software programmer, I do not think that the code involved would be terribly difficult. However, I have very little electrical knowledge and building this without existing plans would be tough and time consuming. It would be enough to have a pressure/flex voltage for each digit transmitted to a Raspberry Pi or via Bluetooth to a computer and the rest could be done through software. My questions are.. Does a commercial device exist that would be suitable for my purposes and not be terribly expensive? Perhaps a glove? Is a wrist strap with piezo sensors over each tendon that control the fingers a realistic possibility to achieve my goals? I do not need to know the position of the fingers or whether it is pushing against something. Just that movement is being attempted. Do existing plans exist to create a similar device? Thank you!

Question by Ril900    |  last reply

Arduino ultrasonic sensor activating servo movement?

I am building a rc car as part of a pretty big project that has a bunch of other stuff on it . But one thing I can't figure out, being I'm only slightly familiar with arduino (UNO), is how to make a servo move when the sensor tells it to. I am going to attach a hook on the front to lift up an object so I can transport it. Now what I want to do is have the sensor detect the object when it is close enough to the hook (3-4") and then tell the servo to move a given degrees, around 25, just enough to pick it up. I've been toying with the code for the obstacle detecting robots trying to see if I cant modify that for this type of use but a lot of that code is backup commands, alternate routes and all that other stuff. just need a simple detect object, send signal to servo and servo moves the hook to pick the object up. Thanks  

Question by dmegill    |  last reply

What can I use to move a table top across a plane in the x y axes, (ie back and forth, side to side on the same level)?

This is a re-framing of an earlier Q that didn't get any replies :-( Essentially I have a small table top of 30cm2 and I want to move that back and forth and side to side on the same level/height. If you know how to do this please let me know, and shoudl you also know how to make the table rise up and down that would be a terrific bonus! At this point I am actually quite desparate for an answer as my project is held up until I can solve this. Many thanks for stopping by; all thoughts are appreciated.

Question by kevinhannan    |  last reply

A mechanism that moves in the opposite direction of the applied force?

I am building a camera rig, and I would like to be able to accomplish very fluid movements with it. I have seen all kinds of existing camera rigs, but they all seem relatively static in one way or another. Simple bi-directional movement is alright, but something capable of vertical, horizontal and rotational movement would be preferable. If you push downwards, the camera moves upwards - that kind of thing. Even a material that is semi-flexible would work, as a rod to attach the camera to that would provide some sort of resistance, and a position to snap back to. I'm not looking for the whole design, just a starting point if anyone has any ideas about something that already exists that sounds like what I'm saying.

Question by epizeuxis    |  last reply

How can I do that

Hi I have a simple question for one of you guys but it is difficult one for me since I'm not exactly into electronics. I want to build an apparatus into my car to move a small monitor up and down - in principal like a DVD drive in a computer that opens (when the ignition is turned on) and close (when ignition is turned off). What do I need to do that?? Stepper motor - Servo motor- do I need a controller ? Or can I do this with relays ? Anything helpful -ideas- let me know.

Topic by doka65    |  last reply

Need help to move a solenoid to sound

Hello all, I am working on a project where I need a solenoid  move to sound.  I was thinking of using an Arduino and a microphone to achieve it but I'm a little stuck.  The goal is to have music playing and have the solenoid move to the music.  I also want it to move to noise so that's why I went down the microphone route. Unfortunately after much searching on the net I've hit a brick wall. if anyone can point me in the right direction on how to do this, then I'd be a very happy person.    

Question by lonesoulsurfer    |  last reply

I need HELP figuring out what this part is called.

I bought a Halloween tree from home depot, they said I can't return it. The arms are supposed to move, they don't and I can see whats wrong with it and it is an easy fix. However, I have no clue what the part is called. Heres the tree: The arms are connected to a screw and a plastic piece and that same plastic piece has a hole on the other end that connects to a shaft or cam and wheel on the motor then it moves. I need that plastic piece, I hope someone somewhere knows what its called and hopefully where it is. 

Topic by RebO1    |  last reply

Survey for makers on new industrial revolution & makers movement

Dear makers,I'd like to kindly ask you to contribute with your time and your opinions to my survey on part of my research internship, I am working on the subject of the new industrial revolution, third places, digital manufacturing and their effect on our lives, on education, on work, on architecture and their capabilities. to produce social innovation.In this study, I try to find an answer to the following questions: Who is the maker? What are his/hers motives ? How does he/she see the present and the future? This movement, is it viable? Does this have the potential to reshape our society?THANK YOU very much!!

Topic by Dalia Ge  

movement decision taken upon the light seen by a robot

I'm working on a line follower robot and it has to check traffic lights every estimated distance and a decision of whether to move or wait is to be taken upon the current state's light of an external traffic signal [ green to move..etc ] it has to be done without the help of a micro-controller i couldn't find a color sensor without the usage of MC. however i managed to find a only one color detector using an LDR and a LED with the given color. could this sensor help in my project ? moreover the robot will have to check two traffic signals at the same time and will move only if one of them is green [ if both are green it will have to stop ] should i connect Green1 & Green2 states of the two sensors to an XOR gate or there is  a more appropriate way ?

Question by superdz    |  last reply

Getting more power from a quartz clock movement

Using a transistor to boost the output from a quartz clock to drive a larger motor in steps. Is the idea sound what would I need? Having read a couple of instructables on equitorial drives, I found myself wondering why you couldn't just use a quartz clock movement to drive one? They don't produce much torque is the answer to that one. Why not? I took one appart to find out. The gear chain is very flimsy moulded polyethylene, or maybe nylon. the power comes from a tiny armature that makes 1 turn a second in 2 pulses the magnetic pulses are provided by a little cuircit board with the quartz ossilator on it. Here endeth my actual knowledge. My knowledge of electronics is minimal give me a good set of instructions and I can build it (unless its a joule thief but thats a different matter) but don't ask me how it works. My limited understanding of a transistor is if you put a small current or voltage across 2 pins you can get a bigger current or voltage to flow across one of them and the third, something like a relay. I was thinking if I took the out put from the quartz cuircuit that provides the magnetic pulses and used it to trigger a transistor to pulse a higher voltage and current through a small 3 pole motor kicking it around 1 pole per pulse. The motor I have a salvaged and rebuilt in an earlier instructable runs on 3V and draws 0.2A when not under load. the largest motor I have to hand is a big 7 pole one designed to power model planes or cars draws up to 15A on 7.2V the timer cuircuit for that one needed 3 Mosfet's in parralle so I'm guessing thats not possible.

Topic by Stan1y  

Looking for an iconic Image

Hey, I'm hoping people here will be able to help me. I'm writing my final year design dissertation about making, hacking and modding culture and I'm looking for some really interesting, dynamic images to use.  I'm looking for images that you think sum up the culture of making and hacking. I'm really interested in seeing what people think the essence of the culture is all about. Preferably I'd like them to be your own images and high resolution as I'd love to put them into my dissertation.  thank you very much for any suggestions.

Topic by Monk    |  last reply

How could I make a clock where the hour hand moves only once per hour, in one swift motion? Answered

I am a novice techie, very novice, but i have began to design a clock where the hour hand and minute hand need to move is one swift motion.  For example the minute hand moves just once every 60 seconds, and the hour hand moves just once at the top of the hour.  Im not sure if it would be called nonsweep or what.  I've seen those swiss clocks where I believe the minute hand does this, but I need the hour hand to do it too.  Im just so lost on this.  Dont know weather to go electronic or analog or what.  I need some real techie help here.  I would like to keep this as simple as possible...mostly for my own sake.  Im planning on making some clocks for christmas presents so hopefully you guys can help me solve this problem.  Thanks in advance guys!

Question by holychachi    |  last reply

which stretchable conductive fabric to be used for elbow joint movements?

I am working on human posture detection using stretchable conductive fabric .i am currently using eoentyx stretchable fabric and jersey conductive fabric but it is not showing much variations so please suggest me which fabric to be used for this application. i have read papers that ppy coated fabrics are good for it . which i am using is very sensitive  and there is no constant increase or decrease in resistance.after washing also it gives reading of huge difference.;=42402339152

Question by PrincyR    |  last reply

How do you connect a motion sensor up with a motor so that when the sensor goes off, it also powers the motor?

This is a project I'm doing for my kinetic sculpture class.  Ideally I would like to have the piece set up in the hallway and have multiple motion sensors so that when it detects someone walking by it, it powers an attached mallet of some sort that hits against the wall to make a beat.  Let me know if you need a better/ more detailed description! Any help would be greatly appreciated!!

Question by BriannaSchmall    |  last reply

How can I control the up/down movements of an electric hoist?

I have a hoist that is a I would like to control the hoist's toggle switch circuit which has a LMG CBB60 capacitor (25uF+ or - 5%, 250V AC C40/70/21 50/60HZ). The hoist is 110V, 125 watt output, 1.5 Amps, 1.7 HP with a lifting speed of 16.4 ft/minute. The duty cycle is 10 minutes at 20%. The weight to be lifted is less than 50 pounds. The hoist also has a limit switch.  I would like to be able to specify 15 up/down movements of the hoist that can be repeated. My question is how can I do this? Any comments are greatly appreciated. Please see the attached images of the limit switch and the toggle switch. The toggle switch includes a large capacitor which is just shown on the right side of the photograph.

Topic by gersthei    |  last reply

Need advice on best sensory only pick up human movement?

Hi Can anyone please point me in the right direction as to where can find a specific sensor as follows : The sensor must cut the power to a multi plug 220v when someone comes within 2cm of where the sensor is placed. Only human interface is needed, anything other than human interface with the sensor must have no affect. Secondly, I need to have a 12v solenoid activate immediately when the power is cut to the multi plug. Is there anything out there that is reasonably inexpensive  that possibly performs both tasks and where can i find something like that, alternatively if someone has plans for a diy solution, that would be awesome. Thanks in advance for any help :)

Question by mariskaddt    |  last reply

What type/number of batteries should I use?

I have 6 Hi-Tech HS311 Servos that i'm running off an Arduino and external power. I have tried a 9V on the external power, but it only works for one or two servos, moving for a short time. I need to find out what type of battery I should be using. I have quite a few 9Vs lying around, if I could use those, that would be preferable. Any help is appreciated. Thanks! The servos have to lift each other and some aluminum. A couple of friends and I are building a servo snake. Thanks!

Question by imagnuson501    |  last reply

What kind of Pump do I need for Hydraulic movement in an animatronic puppet.?

I want to build a Hydraulic-based animated figure. Heck, I want to just build a small frame with a single moving piece and actuate it with Hydraulics. The trouble is, information on Hydraulics for hobby robotics/Animatronics on the web is pretty thin. I've found quite a bit of Servo related stuff, a little bit of Pneumatic stuff, but so far I haven't had luck finding a good tutorial on automated Hydraulic animation. Truthfully, I need information on the whole picture, but I understand the basics of getting a cylinder to move and how to set that up. I know how to do it with Pnuematics. Air is not quite power/accurate enough for what I want to do. I want Hydraulics. Ideas?

Question by aarone    |  last reply

Can we stop time of any body by stopping it's movement through space? Answered

Hello! Please read the whole details before answering.  I was searching on the internet on "Is time passing by around us or are we moving through time?". I found an article, it said that after the bigbang, the four dimensions were created instantly, three of space and the fourth one was said to be time. It said that the bigbang provided energy to everything in the universe so everything in this universe is constantly moving outward from the point of bigbang. So as it is moving through space, it is also moving through time. Now I don't know if all of that was true or not, but if it were true, than if the movement of anything through space is stopped then it should also stop moving through time as well. And also from this explanation I don't understand that how would "time not exist" for bodies moving with the speed of light through space, whereas they would also be moving through time as well with a faster rate and should "age" more quickly. So can you clarify this please, thanks.

Question by Wisaam    |  last reply

I need to find a Merchant selling (internationally) mini clock movements and who also offers Affiliate Commissions.?

Mini clock movements, small dials about 4 or 5 cms diameter, hour and minute hands, etc. 

Question by LeJudge  

What is the most efficient way to transfer motion? Answered

What is the most efficient way to transfer lateral movement to vertical movement via a ramp. The following curve is equal on both sides of the apex, if that is the correct term.  Is this the best way to transfer the movement to strait vertical or should something else such as a long start to the incline and then a sudden shoot up.

Question by    |  last reply

CLOCKS!!! how to make a.... very powerful clock?

Hey, I'm new on here but realllyyy need some help in this as I have a limited technological background. Basically I have a project in which have two digital displays, each one displaying either the time, in minutes or the hour (two digits per display). Now what I want to do with these is effectively attach these on to the hands of an analogue clock, so that when the hands spin round, the time is displayed. For example when the minutes hand is at the quarter past mark, the display will read 15 and when the hour hand is at the bottom the other display will read 06. So I have the designs ready for this clock (including counterweights and whatnot) but I just need a very powerful clock movement, or gearing system that will enable me to turn a couple of heavy clock hands, I have seen online you can but high torque movements which at the moment is my best bet, but i cant imagine it will work very well to be honest. I would really appreciate any response or something to point in the right direction as I'm very open minded and if the issue is solved, I will be sure to put up instructions on how this clock was made. Thanks for reading. Josh

Question by joshblee23    |  last reply

How can I sense the movement of my two cats throughout my house, easily and cheaply? Answered

I want to be able to detect where my two cats are within my house using an Arduino and some sensors. Accuracy doesn't need to be 100%, as long as I know which room they are in or which side of a room, that will do. I thought of using RFID tags and readers, but I would need one reader per room or area and they are very expensive. XBEE triangulation is a possibility, but this also sounds expensive and not sure of teh size of the devices the cats need to carry, I then thought maybe an IR lamp on the collar and a sensor in the room, but this requires a lot of power meaning a bulky pack on the collar, which I don't want. Final idea is maybe one cat has an IR reflective patch on the collar and the other a UV reflective patch and an IR and UV sensor in each room that sends out a flash of IR and UV every 10 seconds or so. But not sure if this is safe and if it can be done. So..... I'm looking for ideas from the community. It must not cost a lot. The cats mustn't need to carry anything bulky. The devices need to be wireless. Any ideas please? Thanks, Mike

Question by TheArduinoGuy    |  last reply

An Electronic piston

Please guys I need a small 12 or 24 volts  device  that can give me a forward movement when it's powered on and backward movement when it is off or vice-versa. Just as pneumatic pistons work, but I need it to be electronic. please help it is very urgent. thanks

Question by victorious4live    |  last reply

Does anyone know and easy automatic way to track and measure the xy movement of fruit flies on a video clip? Answered

I have some lo -res videos of fruit flies lying in a wind tunnel. Im wondering if there is an easy way to automatically track the movement of these flies frame to frame?  Possibly using free software such as imagej.

Question by wheelerjp50    |  last reply

I need a circuit that 'buffers' voltage applied to an electric motor to slow down its movements. For a record player.

I'm looking to build a circuit that slows the voltage spike sent to an electric motor. Something that would progressively apply power and progressively power down.It's for a linear turntable. The tone-arm is belt-driven by an electric motor. The issue is, the motor moves so suddenly that it creates an audible 'thump' in the speakers from the quick movement. Would a capacitor in parallel do this?

Question by CST10    |  last reply