Milling Device

Please comment or make an Instructable on how i can make a clamp-on mill attachment for the drill press below?

Topic by m5industriesinc   |  last reply

Hugging device

We are in search for ideas and/or off-the-shelf solutions for a mobility and toileting issue in response to the following request: "I apologize for posting again so soon, but I forgot to describe my disability, and why I'm physically unable to hug someone. I was born with a rare form of Muscular Dystrophy called Nemaline Myopathy. My disability affects me in many ways, but in this case, I'm unable to independently raise my arms, wrap them around someone, and have them stay in place. A device I'm seeking would have the ability to suspend my arms in the air, and be able to bring them together. One suggestion was to somehow hook it up to a motor, and operate the device by a remote. Also, when I was a kid, I had a device that was like a sling for my arms. The two slings were attached to two separate metal rods on both sides of me that were able to attach and detach from the back of my wheelchair. Someone would slide my arms into the sleeves, and I was able to bring my arms together, or do various tasks, like typing, with my arms suspended in the sling. I do have the strength to squeeze my arms together, but without assistance, my arms eventually do slide down due to gravity. A device similar to the sling idea would probably be ideal, plus no motor or electronic devices would be needed. I realize that this project could be timely, and possibly expensive, but to me it's worth it. I'd love to be able to give someone that I care about a real hug, and experience another form of intimacy and closeness." 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

injection device

 I want to build an injection device that can handle insulin syringes. Please help.

Topic by phamw   |  last reply

Bluetooth device?

Hi, I have a device connected to my guitar that sends information to another device by a 13 separate PINS cable, I would like them to comunicate with Bluetooth or any other wireless device, arduito etc. how can I do that?  where should I begin my research? thank you! Daniel Cuartas

Question by d_dooms   |  last reply

Fake devices

I just took apart a cheap "solar" calculator that was actually powered by a small coin cell. The "Solar Panel" was colored cellophane. You ever find something like this?

Topic by Rotten194   |  last reply

ipod device

How to copy a file from CD to ipod without the use of computer?

Question by vicky.s1   |  last reply

Projectile devices?

I am thinking of making a projectile device. At the moment I have an unfinished bow that is drying out for a year, and a crossbow made out of office supplies. I was thinking of maybe a coil gun, but it seems a bit complicated. Any ideas?

Question by dragonfathom 

Vibrotactile Device

Hi, I am trying to build a portable device that takes vocal vibrations (from a piezo mic attached to the throat) and outputs them as tactile vibrations elsewhere (say at the sternum). I've found and built simple circuits for preamps that run off 9V like this one ( but I'm struggling to work out how I can connect and power a vibrating device (e.g. another piezo mic) for the output.  I guess I will need to include a low pass filter too to prevent the device creating audible output (I just want low frequency tactile vibration). I've seen a similar project here but it's using an arduino and I feel like that's unnecessary for my purposes.  Any ideas really appreciated, Oli

Topic by ocheadle   |  last reply

IOT devices

Hello. Please suggest some thoughts on the below: i am new to the IOT programming. just started learning with Intel Galileo Gen 2 board and Grove starter plus kit. I have a question in mind.. How can we package all the pieces and make as a product.. mean.. lets say when i do the temperature control that uses temperature sensor and display value in RGB screen, how do i make it as a packaged product so that i can make it portable instead of having the chips, wires etc..  i have basic idea that we can use 9v battery and run on it, but my question is, are there any ways that we can wrap all the things into a component box or something? any simple ways..??

Topic by jdk-hyd   |  last reply

Change a Plug-in device into a Battery-operated device?

QUESTIONS - Is there an instructable on how to change a plug-in device (like one you plug into an outlet) into a battery operated device? - Is there even a way to do this? NOTE: may take a while for me to respond to replies, so please be patient...Thanks a-lot

Question by Lord Of Flames   |  last reply

Wearable Video Device

I have had this concept of building a wearable video device that captures moments we usually misses within a few minutes. And I am looking for someone to help me to build a prototype. Or point me to a direction how I can build it myself... Any help will help, If you are interested, please let me know.

Topic by luklau88   |  last reply

wireless electronic device

I am looking to build a device that can communicate with a phone and through that phone you could turn on or off a light or a siren with fairly long range 20 to 30 meters (60 to 90 feet). Would anyone be able to help regarding this device. I am looking for it be as small as possible. also i wanted this device to run with fairly low voltage dc power source. please help with this  thanks

Topic by sam501   |  last reply

eletronic stimulation device

Hello fellow builders, I am having some trouble, for a rather important school project i need to perform some test and for one of the set of tests i need a device to deliver electric impulses on a person on regular basis. so i immediatly thought of medical devices like a TENS or EMS (if i remember correctly) unit. no the big problem is they are almost unobtainable in working conditions or they cost a fortune in shipping and stuff. is it possible to make a unit like this on my own ? 

Topic by sacredrose   |  last reply

Instructables for portable devices

Is it possible to get a portable version of instructables for portable devices or for computers with small screens? Thanks.

Topic by Yerboogieman   |  last reply

PCI Device Tutorial

I can't seem to find any tutorials for creating a PCI card.I was thinking of something like a simpler version of this.Anyone here made an PCI devices? Or any links?Thanks.

Topic by alexgeek   |  last reply

Electric shock device Answered

A friend of my fathers had a dry cell powered device with two metal handles you gripped while the operator slid a rod in a coil to increase voltage. the idea was to hang on till you couldn't. These drunks would hold on till the thing made their wrist muscles contract their hands into claws. How would you build this thing? Thanks, Zappenfusen

Question by zappenfusen   |  last reply

glassblower disability device

Http://; i need help. i can't spin the glass very well and need a device to spin it steadilly for me. the video shows my issue, if you could help it would be very helpfull.

Topic by Mmjmama   |  last reply

Building a communication device

Hey guys - I was wondering if anyone could point me to any instructables or other how-to's that teach you how to build a device that can communicate over the air over a given frequency? I've searched around a bunch but I can't really find anything. (I'm also completely stupid when it comes to this kind of stuff.)

Topic by holyjaw   |  last reply

Wireless texting device

Hi everyone, I'm curious if anyone has ever seen or heard of a wireless texting device that would be suitable for older folks to use. Basically, I'm thinking a laptop-sized screen with a keyboard (basic functionality) that could stay on at home to receive/send texts for those folks (especially older folks) who cannot or will not use a smartphone or regular laptop.  Some sort of audible signal that as text has been received would be good too.  Thanks in advance for any and all help. ~J

Topic by poeticchampion   |  last reply

Help with neurofeedback device

Are you in the San Francisco bay area? Interested in neurofeedback? Experienced with building your own electronics projects? Willing to help someone with little experience? I'm on a very limited budget, but this is something I need. I have plans for an open source neurofeedback device that I wish to build. I don't have a lot of experience with electronics (mostly microcontroller projects using solderless breadboards). If I have to, I'll be doing this myself. I'm hoping to find someone who is interested in this and would be willing to help. Thank you

Topic by GlobalVillageIdiot   |  last reply

Internet browsing device

I have a grand central account, and I use it for free long distance, but I have to turn on my computer just to make a call. I was wondering if anybody knows of something similar to the nokia internet tablet thingies, but much cheaper (under $100). Any ideas (or GC tips)?

Topic by LinuxH4x0r   |  last reply

how to make this device?

Hi, i want to make a device, please tell me how... there is something that looks like a tv remote . it has 9 buttons on it. And there are 9 light bulbs. when i press each button, each of the 9 light bulbs should light up. for example, when i press button 1, light bulb 1 should light up. when i press button 2 , bulb 2 should light up, button 3 turns on bulb 3, and so on. this needs to be wireless. i have done some research and i have found that i need something called an RF transmitter and RF receiver. I just need some hints on how to make this device. i hope it is clear what i want , english is not my first language, if its not clear let me know and i will clarify.

Topic by create90212   |  last reply

USB Device Recharger

For efficiency has anyone tried the ZipLinq X2 model universal charger coupled to the Gomadic retractable cord with tip #37 for the Creative Zen V+. It seemed like a nice setup except it doesn't work.I also tried to use it for my Motorola Pebl and Razr with tip #28. No Joy. Wish someone would try and comment. GomadicZiplinq

Topic by BatRat   |  last reply

Device Remote Pager!!!!

Ok check it out guys, how many times have you said "where the hell is the remote?!" and cant find it? what about the page feature on a cordless phone? granted there is a constant connection and a remote looks off IR but I put it to anyone who can make a beeper page solution to help in finding a lost remote? hopefully its a small enough solution that it can be integrated into a tv and game controller

Topic by babelfish42   |  last reply

Thoughts on a prototyping device

Hey I'm a college student trying to create a specialty extruder to aid in prototyping, possibly to be used along side a 3D printer.  Attached is a CAD mockup but we're in the process of building this.  The applcations are fairly broad at the moment and if you think of a cool way to use long pieces of plastic for modelling, crafts, art, whatever, please let me know. This is my kickstarter and I'm trying to get any feedback you have, thanks!

Topic by saudade-pigeon 

Diy BrainPort device

These brainport things look cool. Basically they use your highly-sensitive tounge nerves to feed data into your brain. Totally safe and non-invasive, they can even allow blind people to see, which is, of course, amazing.'d like one for fiddling with (eg, monitorless computer? what kind of other data can you feed into your brain? Other stuff??) But since the gizmos are like ten grand apiece... not likely!Then again, its just an array of contacts that deliver 5-20v at low amps so how hard could it be? Thoughts? Links? Circuit ideas?

Question by PS118   |  last reply

Anti-speeding device?

I am going to be buying a new motorcycle soon after spending several hundred dollars clearing up my previous youthful errors with my last one. Anyways, I am thinking about rigging a bright LED to the top of the windshield that comes on when I go above a certain speed. Right now all I can think of doing is like in the old movies when then make a time-bomb is drill a hole in the face of a clock (speedometer in this case) and have a wire come in contact with the speedometer when it reaches a certain speed. If anyone can come up with a more efficient and elligant idea and how to do it please email me at Thank you ahead of time, Chris

Topic by cjp91068   |  last reply

Untouchable Android Device?

Hey,  So i am in a turkish school and the Turkish National Education Ministry (Milli eğitim bakanlığı) gave half the schools in turkey educational tablets for free. But the goverment cant just not touch anything.... These tablets (writing this post with one of them now) are on what i am declaring ANDROID LOCKDOWN. (actually sounds catchy) They have deleted play store, disabled the ability to install apks on them, made the bluetooth as expensive as a paperwieght.. And connection with a computer?? Trust me dont even go there. So the question is *İs there any possible way to install apks WİTHOUT rooting??* Help me please The tablets are General mobile e tab 5 Android 4.4 kitkat octa core 1.7 ghz 2 gb ram 32 gig memory. İt pains me to see them like this..

Topic by Doc Penguin   |  last reply

Need tracking device...

I have a horrible problem with keeping cirtain objects of mine within my grasp. As such, I was wondering if there was anything I could put together or attain that may help me keep track of these things. I have no knowledge of these things, so forgive me if what ii'm asking for sounds far-fetched. I'm looking for something like a small thing little beacon that could be attached to something like a shoe or book that sends out a some form of radio waves on a constant frequency, that can be picked up by the receiver that essentially lets you know how close you are by the sound it makes, whether it be through beeps or noise level. I believe things like that are out there, but i'm wondering i';f I can do anything on a really really small level, like the size of a watch battery with a piece of adhiesive on the back. Any kind of help, even just to let me no that its not possible or whatever, would be great. Thanks in advance.

Topic by poken1151   |  last reply

any device that controlled by computer?

Will you help me to find a device that can manipulated by the computer? thank you

Question by asiren   |  last reply

Planning to make a electrical device ?

Hi, basically I am planning to make a device,  like a elongating stick/rod. Based on a meter (scale) it should keep elongating, when the current is supplied. For instance say we have  rod of 3 feet  in length (3 pieces).  The rod will be in the device, when I supply the power to the device, it should protrude to 1 feet and then again for more power another 1 more feet and more power another one more feet. Can some one pls help. Thanks.

Question by ganeshm69   |  last reply

Need help on wearable device

I have had this concept of building a wearable video device that captures moments we usually misses within a few minutes. And I am looking for someone to help me to build a prototype. Or point me to a direction how I can build it myself... Any help will help, If you are interested, please let me know.

Topic by luklau88   |  last reply

Can anyone tell me what this device uses?

Hi everyone, Im really stuck at the moment. I've been racking my brains trying to figure out what sensor is used in this device and would love if someone could help me! The device is this:;=item2305468b0e#ht_964wt_952 I've bought one but cannot for the life of me figure out what exact sensor it uses. Thanks in advanced, Andrew.

Topic by Axial-Andrew   |  last reply

How do you make an Electro Magnetic Pulse Device? Answered

I would like to make and EMP device to blow an RFID. I understand that it is a capacitor and a coil.  And that you charge the capacitor up and then discharge it through the coil.  But what size and voltage should the capacitor be, and at what what voltage do you charge it and how thick does the wire need to be? Is it all about the voltage of the cap (12 volt or 400 volt)  or is it more about the size of the cap? Thanks

Question by Aussie14   |  last reply

how can i make a cheap and easy bugging device which is small and easy to hide? Answered

I want to make a battery operated, small bugging device that is easy to hide and can record or transmit sound to a listening device....just for when i'm...bored...just

Question by paulskinback   |  last reply

Can anyone direct me to a site or simplify the steps in making a micro tracking device?

Its a big ask but i need help on making a very small tracking device. This is just an idea atm but something the width of a pencil, or even smaller than that ?

Question by AllaW1   |  last reply

Looking for directions for a device made in electric shop class that would let the user shock himself.

I remember that it was mounted on a block of wood, and had a metal plate attached to one side with holes in it.  It used a D battery and a copper wire coil.  A rectangular piece of copper with a copper probe attached was held by the user.  You would try to pass the probe through the holes in the metal plate; if you touched the plate, you were shocked. Does anyone have directions for something like this?

Question by sjardim   |  last reply

Antistatic solution?

We are running a vinyl product on our flexo printing press.  I need to build an antistatic device to keep my operators from getting shocked and to keep our product from sticking together. Any suggestions? Thanks in advance,

Question by Monger   |  last reply

How to make smart Distribution power box? Answered

Hello folks i am student of final year . I am doing a project in final year named as "Smart Distribution Power Box" . Its electronics and IOT based project . i just have an idea about it . but don't know how to start it what steps i follow to take it forward . Actutall i 'm trying to make the device something like TED Spyder here is the link of this device you can get idea from this link what i m trying to say .. (      )    Its a smart home energy monitor .  first o have to measure phase voltages and currents , then have to calculate real ,reactive and apparent powers power factor,current voltages at rated load ,load varriations,  then i have to make a soft interface to show it in graphical and well as numerical forms on a smart device .  Please like to suggest something how i can move on and how i can make it. I will be very thankful to you if you help me :-)  Thanks 

Question by MubeenS1   |  last reply

paracord weaving?

I would like to know how to use 550 paracord to weave a ball at the end of the cord. basically making a billy jack club. thanks

Question by bgbrannon   |  last reply

How To Create Frequency Specific Microcurrent?

Curious if some of the electronic gurus might have the answer to this. I am looking to build a two channel (A/B) microcurrent (allowing from 20 - 600 microamps) with selectable frequencies ranging from 3 to 970 Hz). This is based on a medical device that I'm looking to replicate. I've figured out some of this but again, considering the wealth of knowledge here I'm sure some would know the best way to build this. Oh yeah, I figure using a rechargeable battery which could be whatever voltage is best recommended. So what do you think???

Question by pletchman   |  last reply

how to build a G- Force measurer?

I recently seen on Tv where you built one of these and measured G-force on a rollercoaster the end of it and don't what it was called. on diract Tv sat the 28th march 2009.

Question by flintglass   |  last reply

Need 3A Touch Sensitive LED Dimmer circuit.LED voltage is 2.9-3.5,0.7-3A.?

Input should not more then 12volts it is better if circuit works on 5volts,but ON/OFF and dimming will be touch based.

Question by Faizan Hamayun   |  last reply

need simple innovative answer for conveying someone in standing position up and down 12 steps, 3ft wide.?

Live in 1st floor flat. partner housebound. cant use communal stairs. spine problem. stairlift not allowed due to h/s regulations for other residents. amove to ground floor offered but too much for her to move. evacuation chairs tried but jolting and sitting position terrible.device cant be a fixture.something put in place when used. thought of a motorized step raiser that goes up to height of next step and you then step on another flat raiser which goes up, and i bring the other one in front for the next step and so on. was told would cost a fortune. motorized car jacks take 2 mins to elevate - no good. housebound for a year. desparate situation. any helpful ideas like amotorized step device that goes down and up, would be a lifesaver and greatly appreciated. thanks.

Question by    |  last reply

Is there a DIY Arduino or Raspberry Pi Coordinate Measuring Machine published in "Instructables"? Answered

I wish to build a coordinate machine using x-y-z movements controlled by a microprocessor that can measure a scale model by touch of a probe or by reflection of a microwave.  The base machine would handle an envelope of 8" x 8" x 8" and use one or a combination of the best of the CNC laser cutters, 3D printers, etc.  Whether the microwave non-contact, crash avoidance, technology is sensitive enough would be interesting.  A couple of contact probe articles have been published and are the basis of commercial "Coordinate Measuring Machines" (CMM) and would be interesting if they are sensitive enough as a DIY project.  The end result would be to write a file with the x-y-z coordinates of say a model car, and knowing the scale of the model, one could multiply the data by the scale factor and have "Full Scale" coordinates of the cars' surface for building a kit car body.  A 1939 version of this project is on display at the CORD/AUBURN  Museum in Auburn, Indiana.  A 1939 Cord in 1:10 scale is shown as a clay model with half of the car finished.  The coordinate machine's purpose was to measure the right hand side completed in clay and produce a finished 1:10 scale model by finishing the left hand side symmetrically from data obtained from the opposite side. While interesting, it is a manual machine.  I am seeking an electronic, programmable, DIY version.

Question by chestef   |  last reply

How to create a barcode Scanner device?

Please help.. i want to create a barcode scanner device (the actual device itself, not the program.).. can anyone help me?

Question by vpuato   |  last reply

How to make small elec. shock device? Answered

I saw the the project of Plasmana but I have problem that from where the battery is to be connected, because I lost track while dismantling the camera. Also I doubt that one or the other component in my circuit is damaged and is not working, I have a multi-meter but I don't know how to check those components, so help me with these problems. Thank you.

Question by Kunal Gehlot   |  last reply

Can I capture the data from a device it's way to the display, after it has been delt with by the circuitry?

I am looking to hack a complex device, so let's start with something simple...I want to take a pulse oximeter that measures blood oxygen levels and pulse rate, and use this data with my arduino.  Is it possible to capture the data from the pins going to the display and use that? Any help would be appreciated, I don't even know where to start, except testing for voltage on pins and frying things.

Question by anfractuosities   |  last reply