sidecar wheel position

I've looked up sidecars on google and found lots of information for sidecars on vehicles that have front steering only in which case the sidecar wheel tends to be positioned parallel to somewhere between the midpoint and the rear of the vehicle, however if the vehicle has both front and rear steering would the sidecar wheel be best positioned parallel to the exact midpoint or not?

Posted by ambientvoid 1 year ago  |  last reply 1 year ago

how can i get the cursor position using cmd?

How can i get the cursor position using cmd?

Asked by Fox-san48 8 years ago  |  last reply 8 years ago

Ultrasound 3D positioning

How would you use an array of ultrasonic sensors to determine the 3d position of an ultrasonic transmitter. Basically i want an ultrasound transmitter on my hand that gets picked up on an array of 5 or so receivers that outputs the position via usb.

Posted by redshirtdeath 7 years ago  |  last reply 7 years ago

Text boxes in instructable pictures change shape and position: what to do?

Every time I open my new instructable (high end greenhouse) for some minor editing, or viewing comments, I notice textboxes having moved, sometimes even ouside the pictures. Editing puts them into shape, but next time they are back in the wrong place. This makes the instructable somewhat confusing. Anyone had the same problem, solutions?

Asked by BobS 7 years ago  |  last reply 7 years ago

Indoor spacial position system (indoor mini-gps)

Hi all! I'm hoping to work on a little system to allow a device to work out where it is in a room, with some degree of accuracy. I've thought of a few ideas; cameras and tracking points, sonar of some sort, and a few others, but they all have the caveat of requiring direct line-of sight, all the time. My most hopeful idea is that I could create a sort of mini GPS system, thus: A number of radiowave transmitters, perhaps FM, sit in the corners of the room, and transmit the time, or more likely something like 0-9999 in binary, all the time. My device then moves around the room, and works out where it is in the room, based on the number received by each of it's 3(?) radios, and the difference between them. There are a few potential caveats to this approach:   The radio waves may well bounce off the walls, and confuse the receiver.   The assumption is made that there's enough time between transmission of the signal and receiving to notice a difference   Obstacles to the line-of-sight might skew the difference The list is long. I don't suppose anyone has any input on this idea, do they? Graham

Posted by paradoxdetected 6 years ago  |  last reply 6 years ago

Odd Breadboard Question

Hi All  I am brand new to hobby electronics and would love one day to be able to create the endless amount of cool Instructables but I have ran into a problem on my first attempt at putting theory into practice and would really appreciate any help. I have made two diagrams / images showing the circuit I made I have attached them to this post. I am using an Arduino Uno as a power source.... I ran a 5v positive from the 5v pin on the Arduino using solid core jumper to the top of the breadboard onto the positive row / rail and a negative / ground jumper to the bottom of the breadboard. In the middle of the breadboard I placed a 1k ohms resistor bridging the gap / grove/ divide and ran the positive feed through it and on to the anode leg of the LED. The cathode leg of the LED was connected to the negative row / rail completing the circuit. All works as it should because of the high resistance from the resistor the LED barely lights and is green as it should be. So without using a multimeter I know and can see the resistor is clearly working. However if I move the resistor so it's still on the same line / row as it was but no longer bridging the gap the LED goes super bright and turns yellow which means that the resistor is no longer working which I can't figure out why because I know there is definitely current flowing through it given the extreme reaction of the LED. I vaguely remember reading somewhere on these forums that Fritzing is not liked very much so I hope no one minds but to help explain what I mean above I have created two diagrams / pictures using Fritzing. The images diagrams shows the resistor "bridging" and working and the other shows it not bridging and therefore not working. So my question would be why given the resistor has current flowing through it does it not work unless it's bridging this middle divide / gap / grove? It makes me think I am missing something really stupid that everyone should know about breadboards but just seems really odd to me. Many Thanks Rab

Posted by belfastrab 3 years ago  |  last reply 3 years ago

rewired?is brown or blu positive?

Asked by julesjujujulie 6 years ago  |  last reply 2 years ago

How to positively charge something? Answered

I was sitting here in the middle of a thunder storm and I had a thought, usually the clouds are negatively charged during a lightning strike, so, if you used a large cannon to blast a positive iron ball into the air, you may be able to get lightning to strike it, then collect it to see what the lightning did. So, you would you charge a cannon ball? 

Asked by 6 years ago  |  last reply 6 years ago

Which is positive, negative and ground? Answered

 i cant figure out which prong is which just by looking and i dont have an expertise in electronics, so if you guys could help that would be wonderful, heres a pic 

Asked by gantyman 8 years ago  |  last reply 8 years ago

2 Position Servo Controller

I need some help, I am trying to create a damper control using a servo and a 555 timer. Is there anyway that you can use a 555 timer to make a servo move back and forth between 2 positions (0 degrees and 90 degrees) with an with and on/off signal and not a pot? So when the thermostat sends power, the damper moves to 90 degrees, then when the thermostat shuts off the servo returns to 0 degrees? Thanks for the help in advance. -Ryan

Posted by WingmanSVT 6 years ago  |  last reply 4 years ago

Digita Media Enthusiast/Tech Support Specialist

Job description ABOUT PAI PAI is a community rich in culture and diversity, distinguished by its high level of job satisfaction. We believe that our team members are our most valuable assets, so we recognize and reward great performance. We believe in open communication and foster an environment of creativity, loyalty and respect both for employees and clients alike. THE BIG PICTURE Do you like to get into in-depth trouble-shooting that would revolve around TiVo, DVR, or multiple types of digital video media? Do you excel in communicating with people in both a technical and non-technical way? Are you known for thinking outside the box when it comes to creative trouble-shooting solutions? If so, there’s a strong possibility you’d fit in well with an exciting new project at PAI. As Team Leader, you’ll assist in providing first-and second-level customer support for the full line of video media software products for our newest client. You and your team will interface with customers via telephone and email to provide troubleshooting, patches and/or bug fixes, version upgrades and software use tips. Ensuring the highest level of customer satisfaction is key, and will be measured by providing quality issue resolution within the established response time intervals and service level standards. DESIRED EXPERIENCE/QUALIFICATIONS • Basic professional understanding of video standards such as NTSC and PAL, frames and fields, and frame rate and basic video signals such as composite, S-video, Component, SDI and DV. • Basic understanding of broadcast digital video formats and compression such as Standard Definition, High Definition, MPEG-2, GOP Structure, Program and Transport Stream, as well as popular internet streaming, and download and desktop media formats such as Windows Media, Real Networks, QuickTime, MPEG-l, MP3, MPEG-4, etc. • Understanding of audio channels, digital audio sample size sample rates. • Understanding of non-linear video editing concepts. • Familiarity or use of a content management system or digital asset repository THE EVERYDAY VIEW • Phone, Email, and Remote Desktop support to resolve client issues, • Lead a professional team in providing world class support to leading industry customers • Verify and escalate bug reports to Engineering for resolution • Document problems/resolutions for internal/external knowledge base articles. • Effectively communicate with customers, both written and orally, to manage expectations through the trouble-shooting and issue resolution process. WE’RE LOOKING FOR SOMEONE WITH: • Excellent trouble-shooting/problem solving skills with high attention to details and good follow-through. • Excellent written and oral communication skills. • Ability to install and configure Windows Operating Systems. • Basic hardware, software, operating system and device driver troubleshooting skills. • Basic understanding of MS SQL and/or Oracle server installation and configuration. • Basic Linux/Unix installation and administration skills. • Understanding of Windows File Systems, configuring IIS, JBOSS, Apache, File permissions and Disk management. • Ability to troubleshoot basic networking and connectivity issues including TCP/IP, DHCP and DNS. • Ability to effectively work with a variety of personalities and occasional stressful situations. • Ability to multi-task under time constraints. • Able to work Evening and Late Night shifts. • Experience providing support within a Network Operations Center environment, • Digital Media or related Software or Production Service or 2+ years Digital Media Encoding/Production Experience.  To apply:  Cindy Law HR Manager 858-495-3525

Posted by clawpaisd 8 years ago  |  last reply 8 years ago

Ch. 3 In Which Old Science Creates New Technologies

Hey Instructastorians! I know I haven’t been keeping my Instructables Intern Blog updated, so in advance I apologize for the lateness in this update. Things have really picked up since the last time I posted anything here! As some of you might remember back, a couple of weeks ago Instructables HQ, which where herein be referred to as Instructables Laboratories (Seriously, that’s what they call the building here!), held a massive social event involving Liquid Nitrogen and fast freeze Ice Cream. It was a rising success for everyone and more than 70 people visited our lab! The Ice Cream was fantastic to, due to our delicious confectionary staff particularly Angie, and our Maker Faire ticket raffle was awesome. As for the Faire itself, I unfortunately was not able to participate in the Instructables Booth, being more than slightly preoccupied with my own DIY PIXAR stand, but I heard it was great. They managed to give away almost all of the Lab’s business cards and even managed to sell several dozens of our Robot T-Shirts! Sure beats the hell out of being stuck in a dark room, with several hundreds of people jamming into your personal space, while Tesla Coils scream Classical Music at 56 decibels… BUT, last week after the Faire, things became sadly much more subtle. Several people around The Lab were still recuperating from the hectic events of the Faire and there wasn’t much to do around the office. Being recently promoted to the job of Delivery (meaning I get to control all outward shipment of prizes and gifts), my goal was focused on trying to ship out a lot of the past closed contest prizes from a couple of months past. Thankfully Instructables had a monthly event to obliterate this post MF doldrums- INSTRUCTABLES BUILD DAY! This is held on the last Friday of every month, where most work is momentarily cast aside and everyone instead works on their own personal Building projects! SWEET! So for my project, I ended up creating something really cool involving PVC pipe connectors, a Shop Vac and several feet of clear vinyl tubing ('ible coming soon).  I'm making a note here- HUGE SUCCESS! As for myself, even though I might’ve gotten used to waking up at 6:00 AM to commute 1.5 hours to San Francisco, I’m still completely thrilled to be working here. Always something new going on and never a dull day at the office Lab. OH and I finally got my own key! Now I can enter our labs without setting off the Turret Defenses! -New Intern 2011, SHIFT!  

Posted by SHIFT! 7 years ago  |  last reply 7 years ago

Is the copper on electric wire negative or positive?

On elecric wire there are two kinds of metal. One is copper and the other is iron. Okay, now on a battery there is the positive side (+) and the negative side (-). Wich wire goes where?

Asked by Potaterchip 9 years ago  |  last reply 9 years ago

Major Work Location/position sensor for a cricket bat

My name is NicholasI am in Year 12 at Parkes Christian School and making a major work that i can track where i am hitting a cricket ball on a bat. similar to what hot spot is and to be able to relay the information on the position to a phone via Bluetooth(video to help with what my idea is) At the moment i have ordered a Raspberry pi for the help transmit the data, EeonTex Pressure Sensing Fabric, EeonTex Conductive Fabric. But i dont know what else i would need so i can get the information of the position to a raspberry pi like what types of thread do i or is there some thing else i need as this is my first time making something like this Thanks in advanced

Posted by Nicholasrsk6190 10 months ago

3D Precise position/orientation tracking for body-worn camera

Hi all, It's not a new question but the available technology keeps changing so I'll ask this again, having not found any current answers online that are useable at a diy, non electrical engineering level... I'm working on a project in which a body worn camera is tracked in space, then recreated as a virtual camera in the corresponding virtual 3d space (kind of like a lo-fi version of the cameras used on the "Avatar" set). This is to be done over 15-60 minute durations in an indoors area of about 30X30 feet. What I need for this is tracking of the camera's position and orientation in space, precise and continuous (as much as I can get, but at least within and inch or 2, and a few degrees, of the true values),  to be either logged on the tracking device and/or transmitted to a computer on set. Since it is body worn, it needs to be light and wireless. Since it's on a moving body in a space with some objects in it, optical tracking isn't really a good option. I looked at a wide range of solutions, from "flock of birds" and the inertiaCube on the crazy-expensive side to sparkfun's IMU sensors, but frankly am a bit bewildered by the selection and don't know how to figure out which is the best to try first, given my needs. I'm really not looking to reinvent the wheel or rebuild everything from scratch, just find a solution for this not costing more than a few hundred dollars that is fairly reliable. Software-wise I want to be able to get 3D XYZ position and rotation values from it that I'll be able to use in Realtime 3D software such as Max/MSP Jitter and the like. Any ideas, stories of previous experience with such setups, links, etc would be extremely welcome. Many thanks! nadav

Posted by nadvass 7 years ago

increase analog read resolution arduino?

Is there a simple, hardware based way to use two analogRead pins on an arduino together for higher resolution?  I have a project that only needs two analog values, but the more accurate the value the better.  I do NOT want an external ADC, I am aware they exist, but I don't have time to get it shipped.  It doesn't need to be fast, or multiply the pins (just a value of 0-2047 would be fine, but 12 or 20 bit equivalent would be better).  Preferably something with just resistors and diodes, if that exists, but more components is okay too.  I was thinking something like a resistor-divider or something, but I can't figure out a simple way for that to work.   Again, I do NOT want a new ADC, I know how they works and that I can buy one, but I prefer just using the built-in one because there's no interface issue.  No matter how simple it "really is" I ALWAYS have a problem getting two components to communicate.    I'm using an UNO

Asked by jduffy54 5 years ago  |  last reply 4 years ago

positive side of a palm treo 700p battery

Asked by gucci.bich 7 years ago  |  last reply 7 years ago

Do capacitors have positive and negative terminals?

What are electrolytic capacitors? In what way they are different from normal capacitors? The charge on a capacitor depends on how i connect it to battery,but electrolytic capacitors have one long and short terminal to differentiate between positive and negative terminal. Why?

Asked by deepakmurali 6 years ago  |  last reply 6 years ago

convert negative pulse into positive using a transistor?

Hello... ive built an scr using transistors to turn on leds in my car with my remote.. my remote uses negative pulse.. now the scr(latching transistor) that ive built turns on with a positive pulse and off with negative.. so turning it off is not a problem.. I need to change the negative turn on pulse to positive to turn it on though. I know theres a simple way using a transistor to do this, but im still learning and my knowledge of transistors is still limited.. here is the schematic I used.. figure 75 b. I followed the schematic and it works just fine..  ... thanks for helping me out here

Asked by aclark32 5 years ago  |  last reply 5 years ago

how to - detect right object in right position?

Hello DIYers, I have a small square object (6cm x 6cm) that I must put in a mold, but how it's square, is possible put it in any position, but only 1 is the right one. The reference is a 5mm label in the top. I want detect if the object in the mold has the right position. Actually I have 5 different objects, the difference between them is the number in the label. My idea is use a Raspberry Pi + Pi Camera + openCV. There will be a collection of images for reference and the camera will be recording jpgs (maybe 1fps) and comparing with the images in the collection. There will be a red led lighting, but if the RPi detect the right object in the right position will light a green led. Maybe somebody knows a similar project? is possible with this hardware/software? some recommendation? For better idea, I'm attaching a mock-up

Asked by HédelN 1 year ago  |  last reply 1 year ago

Positions available at Instructables (October 19, 2018)

Working at InstructablesIf you don't see an open position that fits you, please don't hesitate to drop us a line and say hi. We are always actively building our network of curious, creative talent with a passion for making. To introduce yourself, please send your cover letter and resume to auctoramentum at instructables dot com with a fun, robot-related subject line

Posted by ewilhelm 3 years ago

A Third Math Sign - not just positive or negative

I was thinking about a random thing the other week. We have positive and negative signs in widespread and ubiquitous use in mathematics. What if we had a third sign? The number line would look like the one in the picture. It's not even a line anymore. Since I am absolutely dumbfounded as to how even the basic operations would play out in this type of system (although I have a rough idea for addition and subtraction), and nor do I know what the possible applications for a redundant sign could be, I'm just putting this here. Got ideas? Fire away.

Posted by nutsandbolts_64 4 years ago  |  last reply 4 years ago

Is The Insulated Wire In An RCA Cable, The Negative or the Positive One?

I was just trying to build an RCA to USB cable but I am not being able to find the polarities! Please HELP!

Asked by mraghib 6 years ago  |  last reply 6 years ago

What is the use of negative voltage. if it do same as positive voltage? Answered

Some where we can see that the circuit only require negative voltage. WHY Only Negative IF positive voltage can do the same

Asked by engineer.arpit 6 years ago  |  last reply 10 months ago

how to make a positive and negative wire out of one wire?

I am building a robot and I need to know how to connect the wires in the power cell to a switch, then to the motor. It is a DC motor. I am in robotics.

Asked by boxen 9 years ago  |  last reply 9 years ago

Residential wiring problem. Power in both positive and negative outlet. Answered

Helping Pops out on this one... He's got a spare room with a small adjoining bathroom. The wiring breakdown on the fusebox indicates that these two rooms are wired as part of the same circuit on the main breaker. In the two rooms there are: 2 outlets, 1 GFI outlet, and 4 switches controlling 2 lights and 1 bathroom ceiling fan. In the last few months this room has been experiences some abnormalities in power: flickering lights, occasional outage, GFI tripped. The outages usually lasted less than an hour and would occur with or without any load and any time. GFI trips sometimes, but other lights will work on the circuit when it's just the GFI. Recently all power to this room has stopped. The main breaker never trips. With everything unplugged (including the ceiling fan) I checked the outlets in the room. Screwdriver voltage tester was used. The probe registers a 'charge' in the outlet and 'no power' on the return. Normal. However when any load (light, clock, tv) is applied all outlets instantly register a charge in both the positive and the return. Not normal. The breaker doesn't trip, resetting breaker or GFI doesn't work, and the positive and negative terminals of the outlets are both registering as charged. House is 10 years old with no previous wiring issues, in Canada. Can anyone tell me what's wrong? edit: January 24, 2011 Problem has been located and fixed. Closer inspection of the breaker panel revealed that the neutral was loose, and had started to melt the casing of the wire. The wire was clipped and spliced, and now things are back to normal. Thanks for everyone's input, best answer awarded!

Asked by mikeasaurus 8 years ago  |  last reply 4 months ago

Dell Insprion 1100 power jack negative positive pins?

Hi all, I was given a Dell inspiron 1100 with the charger and as I went to pull out the power cord from the the power jack at the back the wires ripped leaving the end of the plug still in the power jack at the back. I removed the end part and am now trying to figure out what pins of the 3 are what.It is a 3 pin jack all them are numbered 1,2 and 3.My problem is when the wires ripped out they left no evidence of what goes where when I tried to put them back in..Another problem is that the cord from the adapter only has 2 wires,centre and one around it,so two pins must be the same?.I placed smaller wires into the connection pin holes and glued it so later on  its easier to connect them up to the cord as the wires from the cord are thick and too hard to get back in the end connection. Can anyone please help me identify the 3 pins? Cheers

Asked by luther303 6 years ago  |  last reply 2 years ago

Pull chain for light on ceiling fan broke on off position.?

 The light kit is hard wired to the fan.  It is a two wire light and the there are no connections to separate, the wire is directly wired to the fan.   usually there are wire nut connectors which are simple to remove and replace with new switch.  This fan has no such connectors.  one wire is soldered directley to fan motor and the other end is solder to the light assembly.  Is there any way to repair this , or at least to turn the light on.  The wires fit extremely tightly into the the little light kit, there is no room whatever to work with .  any suggestions?

Asked by yelgab 8 years ago  |  last reply 8 years ago

Which wire is positive?

I have an electret mic that I want to use, but it has green and a black wires on it, would green be positive? Or would black be?

Asked by Zem 8 years ago  |  last reply 8 years ago

If it is not shown, how do I know which lead is positive on a capacitor?

I don't know which is the positive and negative lead on a capacitor. I want to know how to know which lead is positive or negative.

Asked by eeeXsmart 9 years ago  |  last reply 9 years ago

Electrons flow from positive terminal to negative terminal inside a battery? Answered

If a bulb is connected to a battery, then in the bulb the direction of current is such that it flows from negative terminal of battery to its positive terminal. Whereas inside a battery electrons flows from positive terminal to negative terminal. How is that possible? If this is true wont it look like saying that a battery has infinite life time as battery discharges via bulb but charges inside by itself.

Asked by deepakmurali 6 years ago  |  last reply 11 months ago

10 Positive Traits of Aspies. (People with Aspergers Syndrome)

Posted by Lateral Thinker 9 years ago  |  last reply 6 years ago


Today was the first time i wanted to comment, but found myself confronted with this: "We have a "be nice" comment policy. Please be positive and constructive with your comments or risk being banned from our site." In my personal opinion, constructive comments are rarely positive and positive comments tend to be rather useless. Who thought the statment quoted above is a good idea and can it be changed?

Posted by Xaromir 7 years ago  |  last reply 7 years ago

Are positive comments votes ?

*same as topic*

Posted by bryceronie 11 years ago  |  last reply 11 years ago

positive charges are considerate as immovable why ?

Asked by PrabhasS 2 years ago  |  last reply 2 years ago

How can we know about the position of DC motor!stepper motor is avoided in this case!?

I need to know the exact position of the motor! what kind of feedback techniques can be used in this case? and any limit switch possibility is there? like the motor crossed certain position and then the switch on that position is turned on/off! just wild guess

Asked by Nr-Think different 6 years ago  |  last reply 6 years ago

How can I track my car GPS position on home PC?

Hi, I got GPS fitted in the car. Is there any way I can trace my car position on my computer screen at home?. For example, while I'm driving on the road, Is there any way my family members can see my car position moving in real time on Google maps. If yes what sort of hardware or softwares required. I would appreciate any pointer or help. Thanks in advance. Kevin

Asked by 9 years ago  |  last reply 4 months ago

How should the skimmer and water level be positioned? Answered


Asked by mamaquiggs 8 years ago  |  last reply 8 years ago

Looking to control a motor position using a variable resistor and Arduino uno - it is not a servo?

I am a Radio ham and want to upgrade my rotator to electronic control instead of switches see as to what im trying to control - Need to create a c  programming type to make it simple

Asked by m8 7 years ago  |  last reply 7 years ago

Circuit Design Help: LED Circuit that can be powered if positive and negative are reversed? Answered

Hi there, I am looking to design a circuit with: • Has 10 LEDs               o 5 LEDs in Series, with two of these sets connected in parallel. • I want the capability of the LED array to illuminate if one end of the PCB is powered by the positive and the other end is in contact with the negative.  And vice-versa, meaning the first end is now touching negative with the other end in contact with positive.                o I was told that I can use diodes, but I’m not sure by what configuration. I've attached something I've found online.  Will this work?  if so, can you provide an explanation of how it works?

Asked by ThompsonGenie 5 years ago  |  last reply 5 years ago

Is it be possible to set up noise-cancelling speakers to create silence at a certain position?

Is it possible to position a pair of speakers in such a way that they create a bubble of silence? Say you were to play a sound through one speaker whilst playing its inverse through the other. If you were to place your head at a very exact point between them, would the sound disappear? I am interested to know if this is possible in theory but also if it would be feasible for layman to do.

Asked by King.Rawrawr.the.first 4 years ago  |  last reply 4 years ago

Do stepper motors produce to sets of electricity? 2 positive and 2 negitive? Answered

 I made a bike generator. Now I am adding a stepper motor to it. I see that in 2 instructables people used them with two ac-dc bridges. 

Asked by TOCO 9 years ago  |  last reply 9 years ago

maintain initial and end position stepper motor without energy loss

Hi all, In a project of automated vertically folding curtain I have the problem that whatever the position of my curtain (8 kg) is, the motor is always drawing current. Let's say the curtain stays for 8 hours in the same position, then during these 8 hours the motor is wasting lots of energy. Is there a method/mechanical system which can be used to make sure the motor only uses energy ("works") if the position of the curtain has to change? Thanks in advance

Posted by mmsyx 3 years ago  |  last reply 2 years ago

Conventional current. A question about DC current flow. Answered

I just started reading electronics for dummies and it tells me that DC current flows from negative to positive.  It later states that in the early days of electronics it was assumed that current flowed from positive to negative.  Later they discovered that it flows from negative to positive.  Some schematics will have an arrow for current flow going from positive to negative (conventional flow).   Why do they still do this if they know the current flows from negative to positive?  This is confusing.  Thanks.

Asked by pennsteve 8 years ago  |  last reply 4 years ago

Do speakers have a Positive + and a Negative - like LEDs? Answered

I'm planning on hooking up a small speaker out of a cheap toy to a 3.5 mm Mono jack that will go into my mp3 player but I don't know if it matters which wires go where. Do speakers have a Positive + and Negative - like LEDs? If they do, how would I find it out? Thanks

Asked by 9 years ago  |  last reply 9 years ago