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Welcome to the Instructables Teachers Hub!

Welcome to the new home for all things Teacher related on Instructables. We hope you'll explore the new features and come back often to find and share projects, inspiration, and classroom resources. As you explore the new Teachers Hub, you'll see it's easy to find projects by subject or grade level and sort them to find all the best and freshest projects.Be sure to spend some time in the new Teacher Forum. It's a great place to connect with fellow teachers and make new friends! You could start by introducing yourself here or finding a topic that interests you and join the conversation there. :)We'll be working to continuously update and support your needs in this new area of the Instructables community, so thank you in advance for your valued feedback and suggestions.

Topic by WeTeachThemSTEM    |  last reply


Welcome to Instructables

On this page you can find links to some of our most frequently asked questions. What is this site? Instructables is a community for people who like to make things. Our community shares what they make in a step-by-step format that we call an Instructable.How do I post an Instructable? We offer a free and easy online class to coach you through posting your first Instructable or you can just wing it and start a new one today. How do I get help improving my Instructable?Ask the community for help in The Clinic. How does my Instructable get featured? The best way to get your projects featured is by following the Featuring Guidelines. Where can I learn more about contests? Our Contest FAQ has all of the information that you need to know about contests. What contests are launching soon? Check out our list of upcoming contests. Are you on social media? Yes! Follow us on Pinterest, Instagram and Twitter. How do I contact Instructables directly? The best way to contact us is through our Contact Page.

Topic by randofo    |  last reply


British law on defacing coins? Answered

I wanted to drill through a 10p to make a ring like the ones on this website. BUT I NEED TO KNOW THE BRITISH LAW Lots of people are saying its illegal and stuff.  

Question by The Science Guy    |  last reply


How do I separate gold from surrounding ores

I live near the site John Marshall discovered gold in 1848.  There is gold dust and particles everywhere!  Problem is that the gold is dust or fine powder form and the gold strongly adheres to it's surrounding ores.  Panning is tedious and not effective.  How can I separate the gold dust/powder from the other minerals?  I have heard using Auger Regis is effective, but cannot find anything on how to use it, purchase it, or make it myself.  Any suggestions/instructions on making or using auger regis; or any other more effective method of extracting the gold from the other minerals is greatly appreciated.

Topic by Ruthless0240    |  last reply


Develop - Protect your invention

Hi All,Has anyone found a good article re: developing and then protecting your invention?There are all these TV ads for companies to help you file a patent application which seem dubious.Have you found other forums besides here to ask questions as you go along and develop your invention?Are there any engineering forums where you can discuss with design engineers how to build a prototype or model or create blueprints for it?Thank you!

Topic by eager to learn    |  last reply


Separate network for 5 Slaves 1 Master 1 server

I've build a home thermostats system with PIC18F27K42 in each thermostats with LCD, for 5 rooms, 1 master in kitchen and 1 server in the basement, working on a bit-bang i2c. The server only send data to i2c at every seconds as it have a RTC (Chronodot) plus freezer and external temp sensors. The kitchen has a bigger LCD and can send data to the server to send to a dedicated or all thermostats using an ID in the data stream. I have read some docs on the net and bought a ESP32 DevKit V4 with WROOM-32D (changing later for a WROOM-32U external antenna for the downstairs server) and 6 ESP8266 ESP-01S module to include in each thermostat. My goal is to use the wifi instead of the i2c. So I'd like to have some guiding on how to achieve this. Maybe later I may use this wifi to use internet to change some settings in one or all thermostats. But for now do I really need to use the house wifi or can I use a kind of "thermostats wifi", separate from the house one, mostly for heating security. If so, how can I do that, since I'm kind of new to network and wifi. Many thanks to all.

Topic by djdan_23    |  last reply


How do I Make a Quiet Book?

I wanted to make a quiet book for my toddlers.

Question by shrikrishnasawant    |  last reply


Rate my art

Hey, I recently drew a portrait of Lady Gaga, and I have then added some colour to it using photoshop. I would love if you guys could give me any critques or positives about it, so that I can improve it! And then I can start working on other drawings I have done too. Thanks :)

Topic by rebeccah18    |  last reply


Which is better K'nex or legos? Answered

I want to know this because i just want to know opinions so tell me yours thanks. If you want, please go to my page and subscribe please thanks for your time.

Question by LEGO SN1P3R[-_-]!    |  last reply


Rebuilding NordicTrack ski machine drive rollers

Many people still buy and use a NordicTrack Ski Machine, although these machines are not as popular as they once were. I have talked to people who say they just plain wore out a ski machine. The part that wears is the one-way clutch inside the drive rollers. NordicTrack makes the one-way clutch sound very mysterious. In reality it is a one-way needle bearing and is available from Amazon or locally from a good bearing shop. The internal diameter of the one-way needle bearing used in my machine (Challenger, similar to a 303) is 5/8 inch. The outer diameter is 7/8 inch. The width of the one-way needle bearing from end to end is 5/8 inch. I originally had hopes of being able to install new one-way needle bearings, myself; but, they together with the bronze sleeve bearings on either side of the one-way needle bearing inside each drive roller are pressed into place. Pressing bearings is not a job for the average home tinkerer but requires a bearing press capable of exerting tons of pressure in a very precise manner. You can often have a local machine shop press the bearings in your machine's drive rollers. Or, you can send them away to Nordic Track Guy and have them rebuilt for about $33 with a one week turnaround. The core of the rollers really does not wear out, but new rollers are available on the Internet from $65 to $95, depending on the vendor. From what I can find, some models used an alternate size. Check to be certain you order the correct rollers, if you choose to replace. One of my drive rollers suddenly began to hiccup. It seemed that the clutch did not always release immediately when I pulled my foot forward. Then I noticed a little mush in the response when I began to bring my foot back on the push stroke. Before you rebuild or replace your rollers, try this: Remove one side of your Ski Machine. See the second photo and check the exploded diagram in your manual. Four nuts and two screws, all plainly visible, need to be removed. Slide the washers and the roller off of the top side. The shaft and flywheel can be wiggled out of the other side without removing anything from that side. Remove the washers and the roller from that side, too. Flush the one-way needle bearing by squirting some penetrating oil, like Liquid Wrench, into the bearing. Work it both ways with your smallest finger. Push a facial tissue into the shaft hole in the roller and sop away the penetrating oil and any metallic dust it lifts. Do this several times. Let the rollers air dry. A little lubrication is good. People who comment on lubrication for one-way needle bearings use Tri-Flo (I am not familiar with it.) or they use a little ATF transmission fluid. You want enough to lubricate, but not so much that the bearings slip. (But, see the comments below where the oil impregnated bronze sleeve bearings are supposed to supply enough lubrication for the needle bearings.) Put the rollers back in place on the shaft. Check to be certain they grab on the rearward stroke and release on the forward stroke. Reassemble the machine. Do not forget the washers between the roller and the side board. My machine works again as it should. The day will likely come when this simple fix does not help, and I will need to rebuild or replace the rollers then. But, for now, my rollers have a new lease on life. What follows is for your information. The first photo is of a portion of the back cover of the manual that came with my machine. It shows a cutaway image of the drive roller. The black printing is mine. Notice the three cylinders inside the drive roller. The outer two are bronze sleeve bearings. The center one looks like a roller bearing, but is a one-way needle bearing. A one-way needle bearing is essentially a roller bearing, but the rollers are able to move forward and backward a little in their cage. There is a wedge shape for the axle of each roller that causes the rollers to bind between the bearing cage and the shaft when the rotation is in one direction, but they are free in the other direction. Here is a description of how they work with graphics. This link is for an Instructable about a number of modifications I made to our NordicTrack ski machine, including how it can be stored vertically in a closet. If you do not have a digital monitor for your skier, or need to replace one, here is an Instructable on how to make your own from a digital bicycle speedometer.  Check NordicParts for any parts you need, also Nordic Fitness Ski Machines. Danny at Nordic Fitness Ski Machines has some very nice new rollers for sale.

Topic by Phil B    |  last reply


how to make a signal jammer???

Simply,easily,for project,what are the things to need,what are the problems in that,plz reply guys am college student...

Question by vairavel    |  last reply


Our puppy is losing a tooth. Do I pull it?

It's a side tooth and handing on by the skin. Do we pull it or let it fall out? I tried to pull it a bit but it's not giving.?

Question by sekrt8gnt    |  last reply


Please help me identify this Silver signet ring

Found it stashed away in my grandpa's house after he passed, he was a polish immigrant, so it might be from there

Topic by lauracz62    |  last reply


i want 2 make a project by using ic 741.. coz it is given by our colg... plz help me...?

Project shud nt b complicated n expensive....

Question by sandyee501    |  last reply


Creating copper nano particles

Be it conductive ink, decorations or just a special pigment for your paint project, Copper is nice.Only problem is grinding this soft metal fine enough to be of any good use.A not so well documented feature of food additives is that they often have "unwanted" side effects.In our case E300, Ascorbic Acid or just Vitamin C.So how to make copper nano particles with it you might wonder?Prepare a well saturated solution of Copper Sulphate, you find the blue crystals in the gardening section together with fertilisers.It is best to use destilled water and not plain tap water, if in doubt go at least with the demineralised stuff for batteries.Adding E300 either dissolved in water or directly as crystals will start a nice reaction.The copper solphate is reduced back to metallic copper.There are a few problems though...For best results you need a saturation copper sulphate solution, low temperatures and a magnetic stirrer.This produced the finest particles for me at around 5°C.But even warm or at room temp the constant sirring is beneficial for even particle sizes.The ascorbic acid is used up in the process as well.You can start with a little and see how much you end up with in terms of a layer of copper particles at the bottom.Adding more E300 will cause a "rain" of fine copper particles - once this no longer happens you know the copper sulphate is used up as well.A dark greenish color of the solution will indicate this as well.Getting the copper out of the glass...Keep in mind the copper is extreme fine!As long as it stays in the solution it won't oxidize or otherwise react.Once out and in contact with just water and air oxidation happens quickly, after all it is pure copper...I found removing the watery solution and then adding destilled water to repeat the process is a good start.The waste from the first round can still be usefull though...In the final round I try to remove as much water as I can and then add methyled spirit to prevent the reactions.You can use oil as well or do a quick vacuum drying and store it in a sealed and oxygen free container.What to do with it?As a condictive paint with the right binder it only needs some rubbing with a smooth tool to create a conductive cover with a low resistance.In a clear paint or resin it provides some stunning color effects.You can even dust the dry powder onto a freshly painted surface to get a copper look.Leave without a top coat and you quickly get an old copper or even green look.If you ever wanted extreme fine metal particles you will come up with more ideas...Like shielding or sintering....

Topic by Downunder35m    |  last reply


Anyone want to Co-Create the future?

Hi all sydney instructables and indestructables - i just love all this stuff and i am sure some of you are just as passionate. i am running a futures festival and currently in open innovation/open production mode - ie., we all get together and just make a really cool festival. Its called Live Futures 2020: A World of Opportunity. We are creating interaction spaces for the public, particularly young people, futurists, scientists, inventors, researchers, designers, artists, performers, architects, engineers,.......to co-create the future. covering things like nanotech, biotech, health, robotics, education, climate, retrofitting cities to be sustainable, etc... only limited by all our imaginations. If you have something cool to share or just like the idea of co-creating the future join us to create the festival and share the loveat last year's festival we had a young guy who made the coolest electronic musical instruments out of junk and old toys and the crowd loved it. I am sure we now have upcoming electronics whizzes in sydney because of him, i hope tim'll be with us this year too. maybe you have something inspirational too...

Topic by j9j    |  last reply


Mariko Kusumoto

I have been trying to create color stripes in the same manner as Mariko Kusumoto. Cotton and silk thread have not worked. I think I need a different tool to apply polyester dye or different thread. The second image is messy but it was to test the strength of the dye on the bubbles. I think my problem now is how to draw the lines using polyester dye before steaming. 

Topic by jeremyzschau    |  last reply


Want to build a automatic opening drawer? Answered

could i use a dvd tray as the actuator if it is under a light enough load? what is the max it could probably open? thanx for any help you can offer

Question by JustinJalapeno    |  last reply


Rate My Drawing!

This is a portrait I drew of a friend of mine. It took me about 2-3 hours to complete. Please tell me what you think, thank you :)

Topic by FoxyPenguin94    |  last reply


AMEX card not working?

Ive been trying to buy a lab pass for a game Im addicted to. I click the one month option, enter in the info, but it says my credit or debit card is declined! Im using a $50 dollar American Express gift card, but whenever I enter the information it says its declined. So i check on the website, it says everytime I tried (and failed) to use it, it deducts $1. Same for my Visa Gift Card. My mom opened a paypal account for me, but whenever I try it, it says the amount is too great for the card. (its $5.95 ) Does anyone have anyway to fix this?

Topic by wolf555hound    |  last reply


i'm collecting dead bic lighters and would like to make some sort of lamp shade or statue of some sort with them?

Any suggestions on any kind of project i could do with the lighters would great.

Question    |  last reply


The Clinic // Get help with your Instructables!

Hello and welcome to the newest version of The Clinic! If you have an instructable that's not getting the attention you think it deserves, post it in the comments below for honest feedback and suggestions to improve it from fellow authors and Instructables staff. We want to help you create the best instructables you can! Curious about the basics of creating an instructable? Check out my FREE How to Write an Instructable Class! You can also read through our Featuring Checklist. Posting a great instructable has many benefits, including:More viewsMore comments and followersHaving your instructable Featured on the site Having your instructable featured on our social media accounts (Facebook, Instagram, Twitter, Pinterest)Better chance to win contests Driving traffic to your websiteP.S. While I know the goal for any instructable is to get Featured, it's not the end goal here! We're sure to hand out features, but please keep in mind not every instructable is feature-worthy. Even the most popular authors have unfeatured instructables! Don't let it get you down - you're still amazing! :D

Topic by jessyratfink    |  last reply


Ping pong ball launcher

Hi everybody, i need some support in developing this circuit.I'm making a ping pong ball launcher and I just need a servomotor with a switch and 3 dc motor.One should move quite slow and I wanted to use a potentiometer. The other two move together or alone but at the same speed. I want to control the 2 motors and the servo with Arduino. I don't know how much volt I should apply. Should work this way?May anybody give me some hints? Thank you so much.If u may want to change something https://www.tinkercad.com/things/aPDSlGBukDM-epic...I left here my code: #include Servo servo_2;int counter;void setup() { pinMode(8, OUTPUT); pinMode(10, OUTPUT); servo_2.attach(2); }void loop() { digitalWrite(8, HIGH); digitalWrite(10, HIGH); for (counter = 0; counter < 10; ++counter) { servo_2.write(45); delay(3000); servo_2.write(0); delay(3000); } }

Question by vincenzoga    |  last reply


How powerful of a motor do you need to run an alternator? Answered

From questions I have read and step by step’s I have read a question came to my mind. How powerful of a motor do you need to run an alternator? I checked the Delco Remy alternator series from 10SI in 37 Amps, to the 40SI durable brushless model, in 240, 275, and 300 Amps. All their performance charts show rpm’s at the alternator not the motor. The pulley on the crankshaft is considerably larger than the pulley on the alternator, giving you more rpm’s at the alternator than at the motor. All their performance charts show rpm’s from 1200 to 8000 rpm’s. All their performance charts show at 3000 rpm’s you get 13/16ths of max power. The last 5000 rpm’s only gaining 3/16ths of power. The thing is none of the performance charts say the horsepower to drive the alternator. I decided to approach the problem from a different direction Typical alternator efficiencies are in the 54%-60% range. Brushless alternator efficiencies are in the 60% 70% range. A typical 12v 60 Amp alternator produces 720 watts at 55% efficiency. It needs just 1310 watts to drive it or a little under two horsepower at 1492 watts. This does not account for mechanical efficiency of connecting the alternator to the motor. With this in mind a three horsepower motor should drive a 12v 60 Amp alternator. This is just an educated guess but I would like a horsepower chart. 720 watts would do well at charging a battery bank while you sleep; however I could not run my microwave and charge batteries at the same time.

Question by Josehf Murchison    |  last reply


Be Nice Policy

Hi, I have created "Be Nice" memes for everyone to share here on Instructables. I thought it would be a fun way to share your thoughts using the Instructables Robot. You can download the images I created HERE. I will add more as I think of them or through suggestions from YOU. I have also added templates for you to create your own images. If you do create your own and wish to share them, please add them to this community post or to my original Instructable. Thank you and remember to Be Nice. Tater

Topic by Tater Zoid    |  last reply


What to buy?

Hi Guys,I would like to make small wooden boxes, it's my first time would you advice which table with saw should I buy? Greets ChrisPs It should be small and not super expensive.

Topic by ChrisRydzewski  


Cleaning up STL files for 3D printing properly?

Every now and then I find a nice model on Thingiverse or such places that I would like to print.Quite often though these models come with errors.No clue why people upload them for 3D printing if the printing software can't print them....Anyway, there are quite a few online place that fix a model and make it watertight, remove flipped faces and more.Usually with quite good results unless the model is really crappy.What I miss though is a program or online service, preferably free of course, that can actually simplyfy a model to match a printers capabilities.For example a scanned object of just a few cm in size can come with over 100mb in file size with ease.There are programs able to modify a mesh, shrink it or even reduce the triangle count.However those usually still fail to address the problem at hand.Required details go missing and sometimes entire shapes change in important spots.A normal FDM printer comes with a 0.4mm nozzle and is capable of 0.1mm layer hieght with realitve ease.There must be program or service that utilises this properly to create new and in size reduced model.It is just a total pain to use 3 or 4 different programs to modify a simple lithopane just to get some custom text onto the stand.Same for creating multiple print jobs for it as it often results in bad adhesion.What I really would I guess is something where you enter your prefered layer height and max resolution based on nozzle size to get an optimised STL in return.I know your nagging question already: Why bother?1. If you have a STL file of less than 1mb and make some simple modifications with Blender, Meshmixer or whatever, then you can end with a file of way more than 20mb in size and with a complexity that was nowhere in the original."Fixing" a bad file with these apps is easy but again result in massive file sizes or massive loss of detail.2. Mechanics...It really makes no sense at all trying to make your printer create structures finer than 0.2mm - you just won't see it with your naked eye anyway.Especially complex, scanned objects often result in perimeters that enlarged look like someone was holding a running jack hammer while making the perimeter.In return your printer can create quite similar sounds and most importantly the print time goes up for no good reason at all.3. I just prefer simple and clean models.I want to be able to make simple adjustments to a simple object without the need for 32GB of RAM and a server tower to house several CPU's.Is there any such app or service already out there and I just missed it?

Question by Downunder35m  


How can i connect Ardunio uno and rc480 receiverreceiver

Hi if got a ardunio uno board and rc480 receiver with remote and mks stepper controller need to move a gantry up or down using the remote using a nema 23 stepper motor can any one help

Question by TheunisN  


12v battery low voltage disconnect with relay? Answered

Could i make 12v battery low voltage disconnect with relay and resistor? I was thinking if put resistor in series with relay coil i could lower current so relay would barely work on 12v but when it drops to 10v voltage after resistor would be so small that relay would disconnect

Question by Cekpi7    |  last reply



TR-8 Aftermarket kit, TR-36 "Overkill"

I know this works for cars, so I decided to put an extreme spin on KILLERK recent TR-8. The majority of the body is based of the TR-8, but as you can see I added a little different styling to the handle which is also used to support the heavy turret. I added a bit more of a stock to the original but kept the mechanics the way they were. (can't mess with perfection) The turret itself has a ratchet, similar to the TR-8 which allows the turret to only "wind up" in the correct direction. The turret is also attached the same way as the TR-8 with a socket joint in the grip of the gun. I threw some tactical rails on the sides of the gun to try to hint at capability with attachment but the turret is kind of blocking any attachment you would put there. Overall the TR-36 Overkill feel awesome (heavy) and with that phenomenal power and range you would expect from any turret gun. Tell me if you're interested in an ible' and I'll start working on making one.  Thanks for looking! JonnyBGood

Topic by JonnyBGood    |  last reply


Anode and cathode metals? (For electrolysis)

I want to seperate some water to get Hydrogen to play with, so I made a little electrolysis device with a 12v power supply. The only problem is that I have no idea what to use as the anode and cathode! Could I just use screws? Or pennies or something?

Topic by Login258    |  last reply


Washing machine motor on an electric vehicle?

Hello, i already asked a question about a car starter as a Motor for my Electric bike project. I got bad news from the answers, so I wanna use a washing machine motor.  My question is, do i need 240V to power it? Or it has like a transformator in the washing machine that makes the voltage lower? I never opened one..

Question by dsirotic    |  last reply


What kinds of contests do YOU want to see on Instructables?

Hi everyone! As we're planning contests for the next year, we wanted to get suggestions and feedback on the types of contests we're running. :DIs there a contest we ran years ago you'd like to see again? Any contests you're sick of? A weekly challenge you'd like us to expand on? Do you want the contests to be more specific or more open ended?We're trying to shake things up in contest-land - so any and all suggestions are welcome! I'm especially interested in what types of tech contests you guys would like to see, as well as ideas for food contests. P.S. For anyone wondering about weekly challenges - we're still trying to figure out a way to do it that makes it easy for you guys to enter and easy for the editors here to run. But I promise we are discussing it! :)Have prize suggestions? Check this topic. Want to get a preview of some of our upcoming contests?

Topic by randofo    |  last reply


Can I hook a home theater subwoofer to my cars stereo system?

I have a 1999 Jeep Grand Cherokee Limited with an aftermarket Jensen VM9512 in-dash DVD receiver. Can I hook up my subwoofer (Sony SA-W2500) to the receiver and use it successfully? I don't want to buy another sub. What I have to work with is a long enough cable to connect the sub and the receiver and a 12-volt DC - AC inverter. I'm not sure if the 12-volt plug in the back of my Jeep is turned on and off with the ignition or not, but the subwoofer has an automatic on and off mode and the power inverter is just ether on or off. Help? :]

Question by mooseman93    |  last reply



Any way to block a central computer from screen-watching me at school?

So the good old school library bumped up its security this year - you know, cool wastes of money like biometric scanners. Now, while I giggle every time I check out a book, I can't even bring myself to browse the internet. Never mind the fact that the school seems to be running IE's grandfather  for a browser (we just got tabs last year). Never mind that we as a junior class finally discovered the joys of caching, and that last year someone seemed to have started running Firefox off a USB to download mario games to the desktops. Our efforts have been in vain. All the library's computers are now linked to the central computer, so that the librarian can watch about 12 screens in real time simultaneously. She just sits there and watches your screen. Shoot me now. It's really not a big deal, as I normally only do legit research in school, but now I'm curious - is it possible to trick the main comp? Like, somehow running Firefox from USB invisibly if I have the bastardized IE up on the side? Or do I just save anything deviant for unsuspecting teacher computers?

Question by dumplings    |  last reply


Replace LED indicator on charging pack of cordless drill

I have a B & D model RD1440 cordless drill. I recently had new cells put in the battery pack and it works great. My charger is FS14C and it has an LED charging indicator light which no longer lights. I would like to know the correct specifications to replace the LED. Can anyone tell me what is the proper replacement part and the correct way to replace it?

Question by guitarzan214    |  last reply


Is there ANYTHING I can use old dial up modems for (other then dialing up the internet)?

Any old, or unique ideas on what I can do with them?  I have one that is fairly fast (an old cable modem) one that is medium fast (an old DSL modem) and one 56k plain vanilla dial up.

Topic by Goodhart    |  last reply


"Meow", the joke that never gets noticed!

    Okay, the joke I am going to be showing you is called "Meow".  It was invented by my brother in 8th grade, and it is absolutely hilarious! Oh, and by the by, you need to be able to keep a straight face for this joke, or it will not work.     So, the joke is very simple. You just insert a subtle "meow" into your sentence when you are talking to someone.  Example:     "Hey, man! How are you doing?"  "Oh, pretty good, meow."  "That's great."  "So, meow, umm, have you heard of the concert coming to town? meow."  "Yeah, I've heard of it."  "Are you going? meow."  "No, I can't."  "meow. Well, that sucks. meow. Well, I'm going to the concert. meow."  "Well, see you later, I have a bus to catch."  "Okay, meow. See you later!"      It really helps to make the pitch of the "meow"s to be the same as the sentence before or after.  My brother had to do a speech in front of the class, and he said "meow" FIFTY-TWO times in the the speech, and nobody noticed!

Topic by eulaliaaaa!    |  last reply


Can I use 60ppi polyurethane to filter solder smoke?

I am going to make myself a little rig. Two fans with some kind of filter sandwiched in between. I was wondering if polyurethane filter would work because I saw it and it was extremely cheap. 60 ppi seems like the best filter quality I can find. Then again I don't really know what I'm talking about. If someone could explain to me why this is a bad or even a good idea that would be appreciated. Also any recommendations on anything else I should use instead. :)

Question by Inblackandwhite    |  last reply


which is the positave terminal on a dewalt 18 volt battery?

Dewalt battery terminals are not marked, I need to know which is which

Question by popop1111    |  last reply


Internal server error. I'm alone

After 4 days to try to upload a file i have always an internal server error message. How we can fix that ?

Topic by Yannick99    |  last reply


Legal and copyrights confusion.

Hey everyone, I love instructables and I've been working on my own tutorial for the last few weeks. I am not far from publishing the instructables. Recently it came to my attention that I might have some legal/copyright issues. I built my DIY using some parts I took down from other products that are still on sale. One of these parts is copyrighted but not patented. I was wondering, due to the DIY and instructables nature if that would be an issue for me? I am not reselling the DIY or pushing people to do the same as me and even give indication to future makers about how to obtain that part legally. I cite all the sources of the original product from which I borrowed the parts. Would it be ok if I publish my instructables like this or should I avoid talking at all about the "borrowed" parts? Also, if a newspaper or magazine wanted to publish an article about my instructables, would granting them sole publishing rights interfere with using the "borrowed parts" that I talk about above? Would I even be able at all to grant them these rights, given the general terms of the CC license (Non-commercial share-alike)? Does this CC license allow anyone to publish an article about my instructables without my written consent (print and online), so long as they cite the sources? Thanks in advance for helping me out, I'm a bit confused!

Topic by twinbirder    |  last reply


CDROM Motor as a USB Controller - Is it possible?

I would love to see a USB controller made out of a CDROM motor. I have seen projects the other way around (powering a CDROM motor via USB) but would it be possible to use one as a controller? My electronics skills are very basic so I have no idea where to start.

Topic by DaddyWio    |  last reply


L298N - NodeMCU / D1 Mini - DC motor 12v

Hello,I am new in this area. I am struggling to make a dc motor to work forward and back with 2 buttons a L298N bridge and NodeMCU or D1 mini. I look every where on internet but i dont find a good example to help me. Please can somebody help to tell me how to connect all this toghere and if is posible the code ! I am all ready strugling for few days with this :( .

Topic by eduard_niculita  


Elementary School (K-5) Teachers

Do you teach at the elementary level? If so, this is the place for you to introduce yourself and connect with other K-5 educators. Where are you from and what grade level(s) do you teach? Say hi and share something exciting you did with your students this year or project ideas you have for next year. :)

Topic by WeTeachThemSTEM    |  last reply


creating a surface in Invesalius?

Hi there! We want to produce an stl of a heelbone from DICOM files to print and use in an operation. The edible Chocolate Brain was the inspiration to use Invesalius - meshlab I already know so this seemed like a good option. there are, however, limited manuals in english and infos to figure out certain steps in the Program ... like creating the surface for the stl - the mask has already been taken care of and everything else looks right, just this one step isn't yielding the expected result. a link of the document in question to look at - https://www.dropbox.com/s/3oinuz5goz15mws/Fersenbein.inv3 I would appreciate any help a great deal. thank you & snowy regards from Vienna, Eva Tucek

Question by evatucek    |  last reply


Some advice on hacking old phone parts

Hi there. I've been playing around with repurposed items for a while now. But, I've come to a standstill on my latest project. I have a few old smartphone spares. I live in a commune and my room gets looted often. I dont have a pc, but i do have a tv. Im looking for a pinout diagram of a phone cam, so i can wire it with some cat5e cable, into rca, and into my tv, which in turn, is hooked up to an old vcr that can still record. Can anyone help me with a diagram please? My food goes missing. I lock my door, but someone keeps breaking in. Thanks

Question by celticphoenix69    |  last reply


Has anyone ever built their own rooftop luggage or cargo box?

I have had a couple and for 2 & 300.00 bucks or more, there's really not much to them. It's just a hollow hinged plastic box, made to be a little aerodynamic and strapped to an existing luggage rack. I find it hard to believe that a home made version couldn't be created as sturdy if not sturdier, hold more and last longer. I was thinking maybe pvc, conduit, or even wood framed. Just curious. Thanks in advance for any helpful input.

Question by SAWWAS72    |  last reply