Mystery object

Can anyone identify this object

Topic by martian101   |  last reply


Objective Lens?

Broke the 2" objective lens on my overhead projector: Neumade C24LCN.  Anyone out there have one or a source for one?

Question by Hubiewan   |  last reply


objective lense?

I broke the objective lense on my Kalart Victor overhead projector.  Looks like it is a 64mm, solid lense.  Anyone have one or know where I might find one?    thanks   tom

Question by Hubiewan   |  last reply


Webcam and object?

Hello experts, I have this code which works so perfect while detecting square objects from images which are downloaded from internet. However, when I am taking the image of a square object from my webcam and processing, its not turning out to be as expected. I am suspecting, the reason could be due to the green and pink hues which are dominantly captured from webcam. The actual output which is being obtained is that there are squares distributed at random places. What do you all suggest? PS http://i49.tinypic.com/2lw8xw0_th.jpg here, only one circle should be there around the white circular object thats being held.

Question by mania12345   |  last reply


Make awesome jewelry out of household objects

If you want to make something cool for yourself, you can use some household items and your imagination to create some amazing things. Anni Albers did just that several decades ago and you can now get kits to recreate them. Or maybe just dig around in your drawers and see what you can make with what you already have. Make Like Anni Albers, Turn Household Objects into Dazzling Fashion Statements

Topic by fungus amungus   |  last reply


Can I use a x-ray film instead of neutral density filter for photography?

To dim very bright objects such as sun

Question by    |  last reply


Most used objects

So, what do you think are some of the most used things on instructables? Duct tape dremel soldering iron What else?

Topic by Weissensteinburg   |  last reply


Concrete and styrofoam object

Just had this idea and would like to hear from someone with experience with concrete. Can I make an object - a concrete shape ( box) which which has inside full of styrofoam? I am thinking about the posibility to make staircase from concrete with styrofoam inside - the role of styrofoam is to make the the box lightweight.

Topic by sasham   |  last reply


Objective-oriented Contests

On Instructables, contests have tended to had very limited specifications beyond a general theme they work to. I propose this trend be broken in favor of something a bit more actively competitive: hold contests where the objective is set and have people compete to meet that stated goal as set by the contest host. The parameters that entries would be judged upon would be laid out in the briefing, as would any material or cost limitations. Holding competitions in this manner would entice people to competitively build something to meet the requirement the host sets and to do their best to hone their project to succeed in the relevant parameters. I think this would be a nice change from the chaotic randomness of current contests where there isn't much competition among entries, besides wooing people for votes to win finalist positions.

Topic by OrigamiAirEnforcer   |  last reply


The Self-Righting Object

The Gomboc is a "mono-monostatic" object -- a three-dimensional object that purely by dint of its geometry has only one possible way to balance upright.The challenge intrigued two scientists, Gabor Domokos and Peter Varkonyi, both of the Budapest University of Technology and Economics. They spent a few years doing the math, and it seemed as if a mono-monostatic object could, in fact, exist. They began looking to see if they could find a naturally occurring example; at one point, Domokos was so obsessed that he spent hours testing 2,000 pebbles on a beach to see if they could right themselves. (None could.)After several more years of scratching their heads, they finally hit upon a shape that looked promising. They designed it on a computer, and when it came back from the manufacturer, they nervously tipped it over, wondering if all their work would be for naught. Nope: the Gomboc performed perfectly. "It's a very nice mathematical problem because you can hold the proof in your hands, and it's quite beautiful," Varkonyi says.It's apparently similar to the shape of tortoise and beetle shells, explaining why these creatures can actually flip themselves back over.

Topic by canida   |  last reply


3D Scanning a Locomotive

I know nothing about 3D scanning so hope to find suggestions here. I have a large object I wish to scan and import into Rhino 3D and eventually cut (1:120 scale) on my tabletop CNC mill. The diesel locomotive upper nose has compound curves in its shape. The red rectangles in the illustration mark the area of the locomotive that is difficult to reproduce accurately in a drawing. It is this area I would like to scan. Is there a scanning system somewhere in instructables that is capable of scanning this large area of the diesel locomotive? If so, please point me to it. Thanks much.

Topic by CyValley   |  last reply


Search engine for 3d printing files and objects

If you search for 3d printing files and objects of the all the major marketplaces at once, have a look at our free search engine www.fabforall.com - comments very welcome:-) Thanks, Alex

Topic by aschmid 


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


How to adhere metal objects for a found objects robot sculpture?

Any suggestions for assembling found objects (cans, screws, bolts, etc.) robot sculptures?  Welding, soldering (if so, wattage for the iron?), other?  Total newbie, but I want to experiment.

Question by chris2365   |  last reply


Need ideas of object to scavenge

Hello everyone, i'm working to build some home made toy, but I am missing one important piece. To find it at minimum price, I need to find an every day object that would contain a shaft with a driving ring. The ring would also need to be able to move along the shaft. Can anyone help me to find some idea ? where can I find it? I'm sure it must exists in plenty of objects, I just can't think of any.... thanks ! :)

Topic by 1tibo2.   |  last reply


Can anyone identify these objects?

Is it some sort of easel? There may be pieces missing? Wooden with connections using wing nuts.

Question by NGLNGL   |  last reply


Looking for someone to identify this object? Answered

Recieved this item as a challenge to figure out what it is. The drill bit in the picture comes out of the end of the tool and the tool itself has three adjustable jaws that are sharp at one end.  The only other interesting marking is the drill bit has a hole drilled in the end of it.

Question by chuds21   |  last reply


best lego ipod object

I built a lego ipod case, dock, and speakers. I want to see if you can top me! pictures coming soon

Topic by kerneykid1 


Coordinates of an object on a passive image

I have a few questions regarding a project I'm working on. I need some terms so that I can look it up via Google. I have a map (picture) of a city that is printed on a wooden table. When I move an object directly over it I want to know the coordinates of the object on the map. And also the angle of the object on the map. I thought a sort of a scanner is the best solution. That recognizes the part which it scans (part of the map) and translate this to the coordinates and angle. Does somebody know how this technology is called (and maybe a few links to guide me in the right direction)? Or does somebody else has a better idea how this can me realised? Thanks in advance!

Topic by ilovebobcats   |  last reply


help identifying an unknown object? Answered

Its about 4" long, solid brass, appears to have been nickel or chrome plated at one time and has four screw holes in it. any help with identifying it is greatly appreciated.

Question by mr.mountaineer   |  last reply


Cleaning an unknown metal object

My husband and I just moved into a new house on 5 acres. While cleaning some of the 'back' yard, I found a small metal coke/beer shaped-type bottle. It is obvious to me that it is a promotional or key chain fob or similar object. It looks like it screws together in the middle top to bottom. That is the crucks, it is frozen closed so the curiosity in me is trying to find how to unscrew the item. Any suggestions?

Question by ladynavyvet   |  last reply


Help identifying an unknown object?

Any idea what these are? I think they’re from a surveyor possibly around the 1950-60’s but not certain what they are. They’re appear to be made of plastic or lexan and don’t appear to have any optical qualities. The three pieces are concentric in size and have a goove on one side. They came in the leather pouch shown in the photo. Thanks in advance!

Question by ericdube 


Object-oriented programming in Unity?

Hi people, My name is Cynthia and I need some help with Object-oriented programming. I have a project for school where I'am making a 2D platformer game with Unity. Where I have to make a base class and two child classes that inherits from it. I have to work with constructors, properties, etc . The problem is I kinda know what the constructors, properties etc do but I don't know how to put them together to make a game. Can someone help me, push me into the right direction cause now I don't know where to begin with. What I like to make is a Enemy base class with two sub classes (enemy 1 and enemy 2) or base class Item (sort of coins or power ups) with two sub classes (item 1 and item 2). If there is someone who can help I would be so grateful. (I program in C# and the game must be made in Unity). Sorry if this is not the right place for asking such a thing. Thanks Cynni

Question by Cynni   |  last reply


DIY Hue compatible objects

Hi,I love my technology and have attempted to build many small electronics projects with varying levels of success and completedness.I have an idea that I would love to put into action but having a lack of knowledge in ZigBee I wanted to put it to the community to see who else has a need and if anyone else has had any success with the aforementioned Hue system and a DIY ZigBee project of any kind.My idea comes from a need to make things simple for the family and guests in my home to use the Philips Hue system I have without having to re-wire the house. I would like to have a single push button that uses the ZigBee network with Hue that can do multiple things based on lengths of push and number of pushes etc. Much like the remotes can already. However I want to make it so you can put any kind of momentary push button on it.In New Zealand I use a very common style of switch plate made by a company called PDL. The plates have a variety of options and one of them being a modular system that has a push button available. There is even one that has a small LED on it.Having the ability to add a second module to my light switches that allows you to push the button for simple on/off functionality. Long press for dimming and multiple press for scenes or set brightnesses.Now i've coded for Arduino and used this on ESP modules but never done anything in the ZigBee space.Has anyone done something like this before?I'm not asking for anything to help me do this but rather pointers. I will continue to research this project and hopefully one day make something worthy of an instructable for all you kind folk out there! Happy building!

Question by bluestreak101 


How can I make a parachute out of home made objects and that doesn't cost to much. Answered

I am really bored and I have a pretty high up porch. Is there anyway I can make a parachute out of home made objects that won't cost to much and will actually work?

Question by lakerman23   |  last reply


Copy and paste in EAGLE

When creating a schematic in eagle, in a step by step instructions how do you copy and paste multiple components and nets all at once?

Topic by guyfrom7up   |  last reply


Musical Junk Physics Project

This project is not for me. It is for someone who inquired on Answers. Here was his original text:It's a project for physics, and it sounds impossible. I also have to play it in front of the class and have a written component with an explanation on what resonance is occurring. No electric instruments.Objectives:1. Construct a musical instrument out of junk and common materials such as plastic pipe, wood, glass, metal scrap, etc.2. Demonstrate and explain physics concepts inherent in your instrument.Rules: 1. The instrument must be able to play an octave in tune to receive a B grade.The A grade is reserved for truly amazing instruments in terms of thought and construction, so my challenge to you is to WOW me.2. The instrument must be able to play a song. Songs such as "Mary had a Little Lamb" or "Twinkle Twinkle Little Star" are not adequate since they do not include all the notes in an octave. 3. No Kazoos, Jew's Harps, Pop bottles filled with water, musical saws, washtub basses etc. When in doubt, ask.4. This is a high school level assignment, so I am expecting high school level (or above) projects at an appropriate level of difficulty. 5. Grading will be based on # of notes playedability to make your instrument resonateappropriate difficulty of the instrument constructionyour song of choice in an auditory presentation to the class and an explanation of the physics behind your instrumentcreativity of course.Stringed instruments must have more than one stringLet's help him out!!!

Topic by BeanGolem   |  last reply


Cool Art from Everyday Objects

There's a million sites dedicated to this, but this collection of pictures is pretty cool. The site has a lot of other cool collections! Check it out!Dark Roasted Blend: Cool Art from Everyday Objects

Topic by Keith-Kid   |  last reply


Can you teleport objects in Minecraft?

I know you can teleport players with command blocks, but can you teleport objects with them using xyz coordinates? If so, could you tell me what command you type into the command block?

Question by ~KnexBuild~   |  last reply


Please help me identify this object.

I found this object in an old area of Big Sur, California with my metal detector several years ago.  It appears to be very old and has a small hole drilled through it.  You can see writing/ markings on it but I have no idea which language it could be.  It's not very thick.  I'm not sure what it's made of either other than some type of metal. Any feedback would be greatly appreciated. Dave

Question by DavidU1   |  last reply


Is it possible to solder airdry clay objects? Answered

Hello, I am a beginner in jewelry making and I was wondering if it's possible to make a soldered frame around my airdry clay pendants or wrap them with coppert-tape and solder?

Question by Sanvan   |  last reply


Building small objects out of concrete

Hi all, I was wondering if i could get any pointers on mixing concrete, I have gone through the concrete mixing instructables already and have not found anything suitable and hence I am asking her. I want to formulate an open recipe to make concrete objects like the ones in the following links, http://fancycrave.com/concrete-desk-accessories/ http://www.ledindon.com/en/objets-design/9029-stylo-plume-beton-arme.php http://www.designboom.com/design/concrete-rollerball-pen-by-22-design-studio-at-designboom-shop/ They are mostly small objects where the wall thicknesses are quite small (maybe a few mm). I think it will be interesting to see a DIY approach to making a concrete composition that is strong in small thicknesses, i think a lot of cool objects can be made from it . I have tried the normal concrete mix with cement and sand but i am not able to get it strong enough at those small thicknesses. Can anyone please some suggestions or advice on how to go about this ?  Thanks in advance, please see attached files for some images taken from around the web, i do not own any of them.

Topic by varun2021   |  last reply


Removing a metal object from wood?

Hello! Somehow a small 9mm steel BB found it's way into a piece of wooden outdoor furniture. I know how to repair wood, but I can't seem to get the BB out. I've tried digging it out with a small knife, but that only resulted in me damaging the piece further. Do any of you have any experience with this, or ideas on further courses of action? Anything is appreciated.

Question by TheMike25   |  last reply


electromagnets to push objects without touching it

Hi, i want to make an electromagnetic coil which can push another metal plate without touching it from destance of approx. 50cm . max voltage allowed is 24 v.please suggest me way of getting electromagnet strong enough to push weight of approx 7kg without touching it.can you also suggest me material that can easily repel electromagnet?please help asap.

Question by KiranS13   |  last reply


The best cheap pocket knife? Answered

Ok, I need you guys help. I want a folding pocket knife that is in the price range of $0-35 bucks. I want it to be tough for every day use and possibly heavy abuse. I also need it for scouts. Can you guys help, Thanks.

Question by Thelonelysandwitch   |  last reply


How do I slip cast objects?

I am hoping to slip cast small objects from plaster molds. What should I know before making the molds? Before casting? Where can I find good slip and what is the best? How do I mix it? Etc. Thanks!

Question by brthomas   |  last reply


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

Question by HédelN   |  last reply


Touchtable that can detect object without Fiducials

Hi, I was wondering if anyone know how I could do something like the Ibar. I want somthing that can detect any form on a table without the use of fiducials. I know how to track fingers with IR camera but I don't think it could work with an object like a spoon or a glass of water... thx for your help.

Topic by Menekis   |  last reply


2D pattern from a complex 3D object

I am trying to make a piece of cloth to go over a complex 3D tool, see picture. It has to fit exactly over all the ridges. Does anyone know a good way to make a pattern that I could cut the cloth from?

Topic by dbrogi   |  last reply


How much psi can these objects hold...

How much psi can a: 1. Coke Bottle 2. PVC Pipe 3. Metal Pipe safely hold? Is there a formula that I can use to calculate any vessel's psi capacity? Thank You!

Topic by La Tour Rouge   |  last reply


Matlab code for object detection using Webcam?

Hello , I am using Arduino to control a car and i want to make it autonomous by using a webcam to see the object i want and make the car moves to this location i need several things 1) Matlab Code 2)Interface between Matlab and Arduino  3)How to connect between them (software not hardware) I need any tutorial to learn or any instructions to make my project I see many people done this before but unfortunately they   did not mention how to start in this kind of projects  I really really appreciate any help

Question by mohamed.elseify   |  last reply


What is the motorcycle of your dreams? Price is no object.

If money was no object, what motorcycle(s) would you want to own? For me it would have to be a Vincent Rapide, or a Brough Superior. Also, I'd like to own some historic bikes, like ones that belonged to : Pancho Villa, Evel Knievel, Lawrence of Arabia, Elvis, Bob Dylan, Steve McQueen, or maybe Peter Fonda's Captain America.

Topic by skunkbait 


My First Arduino Object Avoiding Robot!!!

Hey guys I am making my very first robot and have been researching for a while now......i have the parts but i am blank on what to do with them. I have:  2 DC motors 1 Ultrasonic sensor Arduino Uno 1 L293D (IC) 1 breadboard jumper cables 1 mini servo a power source for 4 AA batteries Robot chasis I want that the robot goes front and stops when object is near then looks right and left and moves accordingly..... Now keep in mind that i have 2 DC motors and NOT SERVOS so how should i program this or connect all the parts so that it works......PLZZZ do help its urgent.

Topic by mani_97   |  last reply


Garage Bay 3D printer for large objects

Is anybody making a 3D printer that is made to fit in a single bay of a garage? Like something the size of a large SUV? Gigabot comes close, but it still smaller. For such a device, I'd like to make a modular head with a lot of potential interchangeable heads: 1. All the typical FDM 2. Milling for CNC type operation. 3. Laser for cutting 4. MIG welding head 5. Arm with gripper for auto-assembly 6. Scanner head 7. FDM using atypical materials, such as dry slurry epoxy (with microspheres or flocked cotton) Combine this with mobile robot arms to manage work pieces, and you're coming close to a complete fab lab.

Topic by GarrettH2   |  last reply


Turn Your Drawings Into Real Objects Easily

Ponoko.com has added a very cool new feature to make it much easier for everyone to try out making custom laser-cut items. This new feature, called Photomake, allows you to take a picture of a drawing, submit it to the site, and get it laser-cut. No worries about setting up files, just draw with a black marker on a white sheet of paper and you'll be ready to go!You can find out more info and watch a video of the process on the Photomake page at Ponoko.com.Special offer for Instructables usersThe first 100 Instructables readers to make something using Photomake will go into the draw to get their product made and delivered for free. To qualify they just need to enter "Instructables" in the Special Delivery Instructions text box on their way through the checkout.

Topic by fungus amungus   |  last reply


Any objections to my battery charging solution? Answered

I bought some cheap 360 battery packs on the internet and big surprise they don't work.  The problem is that the built in charging circuit charges the packs to around 2.26v when my controller wont turn on until closer to 2.5v.  My idea is to use the indicating LED (that came as part of the pack) that has a forward voltage of around 2v to drop the 5v charging voltage down to 3v and charge the packs to that voltage.  Theoretically when the packs reach 3v the LED will not be able to sustain the forward voltage and will turn off stopping current flow to the batteries and thus stop charging.  I have a lot of knowledge about electronics, however my knowledge of batteries and their sensitivities is just about nill so I thought I'd ask here before I rig this together and get an idea of the likelihood of the batteries blowing up.  I've attached an image of the proposed circuit any knowledge would be greatly appreciated.

Question by double_g   |  last reply


In what electrical objects can I find op amps? Answered

Hello again, I'm searching for good op amps. They don't have to be power op amps, but it would be nice if it also had some protection circuits like a current limiter. It needs to take at least 25V differential between the negative and positive supply voltage. It should be a chip with at least two op amps inside it. Are there any broken electrical items that have these inside? I know they are 'used a lot' but somehow I don't find them often. Greetings, Electorials

Question by DELETED_Electorials   |  last reply


How to connect an attachable object the best using arduino

Hi all technical people, I have a question regarding my project. For the project we have build an flower containing a neopixel. This neopixel is attached to iron wire. The object is part of an installation in which you can hang the object so it can light up. Besides that the object can be used on in a stand-alone object which is powered by an powerbank. And now the problem. The iron wireing works fine when the object is hung up, but when put into the object it doesn’t connect very well. Is there anyone who has an idea on how to fix this. When the object is placed in the stand-alone object and the on button is pressed it should light up without problems. All of this is done with arduino. The powering and code is not the problem, the connection between the objects is.

Question by KellyV17 


how does object tracking in visual basic 2008 work? Answered

 Hello instructables i wanted to make a program in visual basic that tracks a object i want it to track the object based on the color please i need help i 

Question by lj123456   |  last reply


transfer a real world object throught wires, possible? Answered

Scan the real world object and get details about it. reproduce it at the other end with high energy photons or some particle generator.

Question by bobbygoks   |  last reply