A good glue to stick aluminized Mylar to PET

We are making a parabolic solar hot water heater and have been working on it for several years now.  We have been searching for a better glue to stick the 8' x 4' sheet of aluminized Mylar to the PET backing.  We have tried everything from axel grease to double-sided tape but really need something that we can roll on with a paint roller, that won't eat the Mylar (which is basically plastic) and which will allow us at least 5 minutes to place the Mylar and to move it around a little until it is in position - and then harden. The most recent type of glue we were looking at was something like the glue that comes in a small stick that kids use for making things with paper - a glue stick i think it's called.  However this is not liquid enough to be able to be applied with a roller (i suspect we need a roller in order to get it on fast before it sets). Anyway, any suggestions would be greatly appreciated!  Have a super morning!  :)

Topic by frazelle09 2 years ago  |  last reply 5 months ago


Roberts Clock Radio - dimmer - Model CRD 26

Clock working fine except that when it is dark there is no time displayed and it is obvious that the dimmer is sensitive.Open up the clock by removing four tiny posidrive screws and carefully prising the top and bottom apart. ( preferably with a plastic prising tool to avoid damaging it). Disconnect the supply to clock. Small white two pin plug in the motherboard attached to dimmer. Remove plug and short out (connect together) the two pins that it plugs into. For a simple repair push some aluminium foil trimmed to size (like the thickness of aluminium foil on shop bought mice pies) between them. This will eliminate the dimmer and allow the time to be displayed in the dark. unaffected by the dimmer.. OR simply snip the red and black wires and join them together.These clocks cost about £60.00 so it's worth doing.

Topic by poor1 5 months ago


Tempered glass screen protectors - understand and beware!

I recently had the joy of needing a new screen protector for my mobile after being dumb enough to drop it on gravel. The hard cover took all the impact but the film protector on the screen was scratched badly. Was old and partially worn anyway so I decided to upgrade to a Tempered Glass screen protector. Being somewhere rural I had no chance to get one in a shop so I ordered online. With no intention of advertising for some sellers, I collected a few links so you can check what I am talking about: Item1 Item2 Item3 Item4 Item5 Item6 So, what is my concern with these? They all can be found on amazon and other online services as well as on local markets... As I said I ordered a glass screen protector. If you check these listings and even some of the packing you will notice they all have a thing in common - being shatter proof and of 9H hardness. I also love this video showing how to remove and fix a glass screen protector! The last time I checked glass had one very distinct feature: It is hard and before it really bends it breaks - unless you use fibre optics of fibre glass cloth... What is my concern and warning here? Pretty simple: Stay away from expensive scams! Some claim their screen protector is only 0.25mm thick, even the 0.2mm one I measured was over 0.5mm with the glue... The hardness of 9H refers to the so called Moh's hardness - look it up on Wikipedia if you like. That means these tempered glass protectors would have a similr hardness than a diamond, or at least close to it. Problem is that they are made from plastic to start with and not glass at all. They claims that the screen protector is flexible because it is so thin - again a fake! Even the thinnest tempered glass will shatter if you bend it enough, not so these plastic ones. If you think I am making all this up try to use a really sharp knife or deburring tool and cut the thin sides of one of these protectors. All the ones I tested could be cut quite easy - and I though glass can't be cut with a kinfe... A nice website showing that the scratch resistance is far from the claims can be found here. And a video showing how a real glass screen protector sounds and breaks can be found here. So is it really all bad and should I avoid getting one? Not really if it is only for the added protection. To be clear here, and without the intention to blame any of the above sellers, some protectors actually do have a top layer made from glass and you can hear it as in the above video - it sound solid and not like plastic if you tap it with something hard. Another factor is the simple fact that plastic absorbs impact much better than glass. So where a real glass screen protector might shatter and crack like in the above video, the fake ones might one get a nasty dint or scratch. But you should be aware and clear about what you get and what to expect from it. These glass imitations are made from a strong polycarbonate plastic, similar to the stuff used for bullet and explosion proof "glas" windows - if you every watched the Mythbusters you have seen the big sheets I mean. The top layer of these things is specially treated to repell water, oil and dirt, it also gives the surface the good scratch resistance. The technique is nothing new, camera lenses, plastic sheets and the clear covers you see over the timetable at your bus stop all use it. The new thing is to intentionally mislable a product to make the consumer think it is glass ;) What is the real difference for the user? Check this video. Here a guy performs a drop test with a real glass screen protector. Thing is once the protector breaks the screen itself is broken too but until then it was not too bad. Here it is demonstrated how a real glass screen protector reacts to certain types of abuse - one of the reason I decided on glass. Compared to the plastic counterfeits just the sound on the glass is worth it, but I think the hacksaw was best. Another video from XDA gives a bit more info on how the glass is made - if you can't seeing a phone being abused then don't watch the drop tests at the end ;) Glass with these hardness levels and types of surface protection will give the user a long and worry free use of the phone. The plastic fakes will perform at a similar level for some time but will show signs of wear long before even the top coat of the glass one fails. Both types have their uses and if the fakes would be labeled correctly the user would actually benefit from that. On bigger screens like a tablet I would actually prefer the plastic ones to prevent damage once it needs replacing. On a mobile used in less than perfect conditions I would also go for plastic as it usually is a bit thinner and will fit better within quality hard covers. But when it comes to real abuse like using with dirty fingers most of the time or mostly outdoors where a lot of dust and fine sand can be involved I always go for glass. If you paid attention to the surface treatment then you already realised that the plastic and the glass are in the same region, making them quite scratch resistant. Still fine sand or metal dust will scratch it.... The difference is in the hardness of the actual material that was covered with the oleophobic film. Glass will not give in any way, where plastic is much softer - so not to be confused with the surface hardness! This mean that sharp and point object will easier penetrate the plastic than the glass, something to be considered if you often ecounter harsh use. In terms of actual protection we need to differenciate between surface quality and actual screen damage. After all when badly scratched we can replace the protector but if the display got damaged we are back to square one. The surface hardness was already covered so let's move on to the screen itself. In some of the above videos you can see the abuse a screen might see in normal conditions, and if we would not drop our phones so often repair shops would not be at every corner LOL I have done quite a few screen repairs, mostly for friends and work mates that did not want to pay the hefty extras in a repair shop. From there I got the stories on how it happened and in almost all cases the screen cracked when the phone landed on the corners. In one case the screen and glass protector failed, including the actual display when the phone was dropped out of a 4WD and landed screen first onto a rock. A glass protector will spread the (direct onto the face) impact force onto a much larger area, where a plastic one will produce a dint onto the actual screen much sooner. So again glass wins in terms of actually protecting your expensive screen. But be aware that all this is useless if the phone lands on the corners!! Let me explain: Both the top glass on your screen and the screen protector have a thin layer of "glue". This acts like a shock absorber, so unless an impact goes deep enough so the pressure on the actual screen is too much only the protector should fail. But the screen itself is a tight fit into the frame of the phone, so all side and corner impacts go directly into the glass. As the rest of the glass has no way to give or go the stresses will crack the screen. How should I treat my phone with the new screen protector? Exactly the same way you would without it of course. But if you don't have a proper cover that offers protection of the corners you should invest in one. Having a quality protector and a good case does not mean your phone can be used as a football, see it as an added insurance in case something does go wrong. For obvious reason it can also pay off to have a spare at hand, if something bad happens that requires replacement of the protector you won't be left with an unprotected screen ;) Last but not least, double it up: For people that already know their screen will see a fair bit of abuse in term of scratches it is a good idea to put an extra film protector onto the glass one. Once it is too scratched you peel it off and replace it, while the glass protector gives you the actual protection for your screen. Corning Willow glass As time of wrinting Corning Willow glass is the only "flexible" glass on the market, unless stated with your flexible screen protector you can assume it will be just plastic. I did not list it above as this high tech material is mainly reserved for displays and at least to my knowledge is not available for screen protectors, although I will stand corrected as I have to assume some big players use it for their protectors. The material is actually a sandwich where an ultra thin sheet of glass stis bewteen two layers of durable coating, read it up on their website it is quite interesting. It won't reach the strength of their famous Gorilla glass so without an outer plastic that has the additional oleophobic coating it won't provide the strenght of real tempered glass protectors. Some phones like the Galaxy Round and the fleixble HTC phones use it for example.

Topic by Downunder35m 3 years ago  |  last reply 5 months ago


Can somebody make an Instructable item for me?

Hi,I'm creating a show and have just seen an Instructsble "Ghost Knocker" that was posted about 6 years ago.It's exactly what I've been looking for a long time. It's not possible for me to make it due to time constraints etc and want to ask if there is anybody in the community who could make one for me. It uses an Arduino unit.The link to buy the kit is no longer available and electronics are not my strong point...If there's anyone out there who can then please let me know and an estimate of the cost and time-frame etc.Link: https://www.instructables.com/id/How-to-make-a-Gh...ThanksLanceS24

Topic by LanceS24 5 months ago


How do you hook up a linear actuator to be controlled with PWM / R/C?

Hi Everybody, I'm working on a robotics project requiring strong linear actuators(LAs). For the most part I see that using LAs is the same as using DC motors. The red and black cables of the LA would connect to the motor +/- terminals of a motor controller. The main power source would connect to the battery +/- terminals of the motor controllers, and the motor controllers input could then come from a microcontroller or single board computer (SBC) using PWM / R/C control. This should allow me to control the direction and the speed of extension. However, for my application I and going to need multiple LAs the need to extend exactly in sync. The best way I can think to do that is to sense their individual extensions and program the LAs so that they stay in sync with each other. From what I've seen what I'm looking for are LAs with built-in limit switches and potentiometers.  What I don't know is how to hook these up to their motor controllers and microcontroller/SBC. An example I'm looking at is this one from Firgelli Automations: http://www.firgelliauto.com/product_info.php?cPath=94&products;_id=159. Unlike hobby servos this LA has 5 wires. Two are the positive and negative power wires and the other three relate to the potentiometer. I know you can control the extension this way but so far I've only found youtube videos and couldn't see how they hooked everything up. This datasheet for different LA (http://www.firgelli.com/Uploads/L12_datasheet.pdf) helped me understand what the potentiometer wires do, but not how to use them with a PWM microcontroller. Does anybody have experience with this? Thanks for reading

Topic by honor_the_ways 7 years ago  |  last reply 5 months ago


How to change the cover image of an instructable already published?

I'm having some trouble with the cover image of my instructables: sometimes the image of the first step is the one that goes to the cover (like I want it to be), but sometimes any aleatory picture goes to cover. How can I choose the cover image, and how can I change the cover image of an instructable already published? Thank you!

Topic by Trupe Por um Fio 5 years ago  |  last reply 5 months ago


Robotics Aspirant

Hello Great Mind. I am interested in Robotics but I don't know where to start. I think I will be needing an instructor, too. I really need your help and advice.

Topic by LoloN1 5 months ago  |  last reply 5 months ago


3.7v LED driver

Hi guys how are ya doin? :DRecently I'm working on the next project, which is about battery powered bicycle led lamp. So in that case I want to use LED driver. Then I've founded this schematic with CMOS 555 timer, who runs more than 5 LEDs in series. Excited by this new found schematic, I bought the parts & connected them like so. Unfortunately, it turns out, it wont work. :/ At 3.7v they won't even light up, but at 5v they start to shine a little bit. I'm wondering do I need to put different transistor (in my case it was PN2222A - that's the one I had and its equivalent to 2N4401)? Or what the problem with this circuit.I would more than thankful for your help. :D

Topic by JohnSmith-Workshop 5 months ago  |  last reply 5 months ago


Hybrid electric vehicals, batteries going serial or parallel

Can I wire 7000 lithium ion battery cells (about 75kwh) in parallel, and then use a lightweight bike engine hooked to a DC generator and connected in series to the batteries to boost voltage? Are there any flows in this design concept, for use in a hybrid race vehicle to increase the longevity of the batteries?I am trying to develop a race track car which is hybrid, thus utilizing electric motors immense torque.We build original race cars with common petrol engines but now I’m seriously thinking of developing a next generation race car. I know batteries don’t last long in high drain situations and thus any race car I sell will need a battery replacement after a race season. I’m sure this will be bad for business. Thus this is why I’m thinking of ideas to prolong the battery life by reducing current drainage. That’s why I want to have an engine generator with its sole purpose is just to boost voltage, and about 20,000ah worth of batteries connected in parallel so I reduce current demand per battery cell to well under 1C. Giving a Tesla p100d as an example I would require about 1200 amps and 400 volts to produce 480kw of power. If wire all 7000 battery cells in parallel to produce the same amount of current then each cell will need to provide about 0.18amps that’s very low to sustain longevity of the batteries. The generator is then connected in series to help boost the system voltage to 400vIn extrem simple terms, (the batteries provide the current, and the engine generator provides the voltage)I hope you understand why I’m looking at it this way. I know it might not be the most efficient way, but is it a practical doable way? Thanks

Topic by SamA196 5 months ago  |  last reply 5 months ago


Jaswinder Brar: Seeking Developer Team for New Product Design Inventions!

Hello I am an avid inventor of new product designs:I am currently working on Project: Foam-Fan: For Global Cooling Prize:See Details Here:https://www.linkedin.com/pulse/richard-bransons-gl...I have entered my preliminary submission, received great feedback from GCP, and I am now seeking a developer team to help prototype this invention for the next stage of submissions.Feel encouraged to browse my Product Design Inventions on Twitter (User: @jay_bee12345) and message me back if you'd like to collaborate on developing my product design works. Details:https://twitter.com/jay_bee12345I also regularly post and update Product Design Articles on LinkedIn, Let's Connect!Example:https://www.linkedin.com/pulse/2-new-nokia-inventi...My LinkedIn Profile:https://www.linkedin.com/in/jaswinder-brar-8098791...Let's Work Together & Innovate the World!Thank You.Jaswinder Brar.Calgary, Alberta, Canada.JSB23@hotmail.CA

Topic by JaswinderBrar 5 months ago


ATtiny85 IR USB receiver that works with any IR remote!!

Hello everybody, I have made my own USB IR receiver using and Arduino to program the core of the project which is an attiny85. I dealt with a lot of issues and got desperate as well trying to put it together. After many hours of study and research on the Internet I came up with a solid procedure to make it work. Now I enjoy my own receiver that I can program to work with any remote. The procedure is not easy, so I made my own guide for future reference that evolved into an instructable to return to the community of makers and developers part of what I have got from them:\ https://dltutuapp.com/ dltutuapp.com/ showbox.red/

Topic by achanakbhayank 5 months ago


Portable media build parts question!!

I'm looking to build a portable gaming and media station but I'm stuck on a couple things and am hoping people here might have some suggestions and/or links. Basically, I bought a large aluminum camera case, big enough to hold a 22" led tv in the lid. I am going to mount the tv in the lid, thinking of just drilling the holes and mounting the tv directly to the lid. Any critiques or problems with that would be nice.Second, I'm going to mount a ps3, a portable media player (think Von Haus) which uses flash drives or portable hard drive via US, and a retropie system. Now where I'm running into trouble is two-fold. One is how to mount the items into the case. Foam would normally work well, but I'm worried about heat reduction, less so for the media player and more for the ps3 and retropie. I'm also worried about having it hardmounted onto the case via glue gun because of any shocks it might get while in transport. I also want to dremel out in the front and the back, and put in ports to be able to connect to an outside source as needed. Basically, I need a number of connectors which mount inside with the port leading out. USB 2/3, HDMI, RCA cable connector (RWY). I can find extension cables, but what I'm more looking for is, say for USB, a male lead on one end to connect to the ps3, and a female lead on the other end which sits inside case but is dremel'ed out to be able to connect a USB from the outside, basically a plate which I can just screw in. Something similar to what you'd find inside a console or similar. Anything which anyone can help with on any of these would be greatly appreciated. Thanks.Nox ShowBox Mobdro

Topic by achanakbhayank 5 months ago


Remote Access and Control for various Sensor Data and Output Devices

I am working on a project that involves multiple sensors as well as a handful of output devices, and am looking for the best solution on how to collect data from the sensors, have certain actions occur based off of the sensor input, as well as be able to have a web-accessible page where the logged data could be viewed. Additionally, I would also like to be able to modify certain variables (such as changing thresholds for when output devices are activated, for how long they are activated, etc) on the webpage. A very similar solution to a different situation that I am familiar with is OctoPrint. With OctoPrint, you can view your 3D printer live from the comfort of any machine on the network, as well as send custom commands to it, or even initiate prints. My application would be very similar to what OctoPrint offers, with the addition of being able to view collected data from sensors, as well as changing variables within scripts. The current hardware I plan on using consists of an Arduino as an analog to digital converter for the analog sensors, as well as the controller for relays and other output devices. The Arduino would be plugged into a Raspberry Pi (or really any machine would work, I think), which is essentially how an OctoPrint setup works. Ideally, I would like to have the Raspberry Pi act as the webserver/host (I would be the only individual accessing the webpage, so a pi should be enough for that? If another computer would be needed to host the webpage, then Ideally I would like to omit the pi altogether.)I would like the input data to be logged and displayed in a graphical manner, through graphs and charts. A friend recommended using a database, such as MySQL; is this a good option, or is there something that would be more efficient? The control/data page wouldn't necessarily need to be accessible to the world wide web, although that would be convenient (I would prefer not needing to pay for a domain though). So long as I could access it from the local network, that would suffice.If there is some program/software that allows me to do all/most of this, that'd be great. Otherwise, I'm just looking for input on what would be the most optimal route going about this. Ideally the less complicated the better, but I'm not afraid of learning new things.

Topic by RocketPenguin 5 months ago  |  last reply 5 months ago


New on 3d printing: asking for advice

Hi everyone, Do you have any suggestions for an amateur to buy her first one printer? Thanks for your advice firstly!

Topic by fernelu2017 1 year ago  |  last reply 5 months ago


Portable media build parts question

I'm looking to build a portable gaming and media station but I'm stuck on a couple things and am hoping people here might have some suggestions and/or links. Basically, I bought a large aluminum camera case, big enough to hold a 22" led tv in the lid. I am going to mount the tv in the lid, thinking of just drilling the holes and mounting the tv directly to the lid. Any critiques or problems with that would be nice.Second, I'm going to mount a ps3, a portable media player (think Von Haus) which uses flash drives or portable hard drive via US, and a retropie system. Now where I'm running into trouble is two-fold. One is how to mount the items into the case. Foam would normally work well, but I'm worried about heat reduction, less so for the media player and more for the ps3 and retropie. I'm also worried about having it hardmounted onto the case via glue gun because of any shocks it might get while in transport. I also want to dremel http://movieseriesworld.com/ out in the front and the back, and put in ports to be able to connect to an outside source as needed. Basically, I need a number of connectors which mount inside with the port leading out. USB 2/3, HDMI, RCA cable connector (RWY). I can find extension cables, but what I'm more looking for is, say for USB, a male lead on one end to connect to the ps3, and a female lead on the other end which sits inside case but is dremel'ed out to be able to connect a USB from the outside, basically a plate which I can just screw in. Something similar to what you'd find inside a console or similar. Anything which anyone can help with on any of these would be greatly appreciated Thanks...

Topic by Henrryparth 5 months ago


Why Sub c batteries used in battery packs for drills?

Is this somehow related to discharge rate? I'm trying to replace existing sub c batteries, but their price is put me off. Can anyone provide some info? If use equal capacity aa, what the difference gonna be (once again discharge rate)? I would  really appreciate any info about this.

Topic by Extasy 7 years ago  |  last reply 5 months ago


Automated plastic waste collection device

Does anyone have an idea about collecting plastic waste from lakes and rivers?If you do share your ideas it should be a machine which is automated to collect plastic waste from water.

Topic by ZaynH 5 months ago  |  last reply 5 months ago


Instructables Ugly Sweater Party

Over the years here at Instructables, we've seen our fair share of truly inspired Holiday Sweaters get posted as folks head to their holiday office parties and family gatherings. We love the home-made handicraft and nostalgia factor holiday sweaters have, and how they can range from totally adorable to wildly over-done. We recently were reminiscing over this collection of Ugly Holiday Sweaters and it struck us that we could have a little fun with the community this holiday season, so we decided to throw an online Ugly Sweater Party this weekend!If you show off a photo of yourself in your holiday finest, or rather holiday ugliest, in this forum post, or on Instagram/Twitter, we'll send you a prize pack with some Instructables goodies. Once you've donned your festive apparel, share it below in the comments, or post a photo and tag your pic with @instructables and #iblesUglySweater so we can see it! We'll repost the best outfits and pictures in our feed. We'll be awarding prize packs to all the folks that participate before Monday 12/17 11:59 PM PST.Want a prize pack but, don't have anything in your closet to show off? Get inspired and get craftin'! Our personal favorites from the community are jessyratfink's Crazy Cat Lady sweater and this Stranger Things sweater by .F that can be programmed with cryptic messages. They both use LED lights as a material but work with different electronics skill levels for the complete beginner as well as the practiced tinkerer, and still show off the range of what is possible for a holiday wearable!Looking for even more ways to celebrate the holidays with Instructables? Check out our Ornament giveaway and Holiday Decor Contest!

Topic by audreyobscura 5 months ago


Automatic LED light for cordless drill????

As far as I know, DeWalt has not incorporated lights into their cordless drills as some other manufacturers have. Could someone make an LED light which would come on when the magnetic field produced by the drill motor is sensed? Perhaps a sensor taped to the drill body, and a small LED light pointing forward, or a ring of light around the drill chuck? Rufus 123Movies GoMovies

Topic by achanakbhayank 5 months ago  |  last reply 5 months ago


How do I calculate what resistor I would need?

Ok, so I'm working on a project. I need to know how I can reduce 18volts down to 12volts. If someone would explain how to calculate this myself I can figure out what resistor (or series of resistors) I need.

Topic by the.texas.trucker 10 years ago  |  last reply 5 months ago


Free IC Samples: Good or Bad

Every now and then I order a sample of an integrated circuit from companies such as TI, Atmel, or Microchip. But can I get too many. If I order too many do you think they will catch on to my using of their free samples for hobby use and not research? I stopped ordering because I am afraid they might start charging me for all the chips I ordered. What's your opinion?

Topic by gimmelotsarobots 11 years ago  |  last reply 5 months ago


How to heat a tent- safely?

While I am a a hands-on person, that mostly extends to art and sculpture rather than engineering. Therefore, I thought I ought to bring this question to people with a little bit more knowhow in that area. See, with the cold winter months coming on camping is becoming a little more arduous. More to the point, heating a tent safely is a real problem. I don't trust gas powered heaters....but there's not a whole lot of alternatives out there. So I was wondering if anyone here could think of a way to safely heat a tent for a prolonged period of time. Preferably without gas, electricity, or risk of fire.

Topic by redlethe 7 years ago  |  last reply 5 months ago


Updated e-mail address doesn't change in the newsletter mailing

Changed my profile's e-mail address and confirmed it, and it shows under my profile. However I still get newsletter e-mails under the old e-mail address. I assume they're two different databases, but then how do I delete the old address from the newsletter mailing database?

Topic by SAVAJ 9 years ago  |  last reply 5 months ago


Embedding YouTube Video Bug

When I type in the URL for my YouTube video, it either says, "There was an error embedding the file," or, "URL not valid." Can somebody help me? P.S. The reason that this is in "Burning Questions," is because when I began to select the category to put it in, the category "Bugs," was not there.

Topic by DIYEnPointe 1 year ago  |  last reply 5 months ago


Calling all blind makers!

Hi everyone,Instructables readers may already know about the community of blind woodworkers from pages like ww4b.org. The university I am affiliated with (OCADU), and my research group are interested in bringing the expertise of all blind woodworkers into more and more classrooms. This includes post secondary institutions (colleges, universities), makerspaces, and anywhere else it might be useful. We currently have an open dialogue with some professional blind woodworkers, and have enrolled in woodworking classes at non-profit facilities for the visually impaired. But we are looking to learn from anyone else who has first hand knowledge of teaching woodworking (or other kinds of making) to visually impaired students.If this sounds like you or you are interested, please see the details at this instructables link: https://www.instructables.com/id/Blind-Woodworkin...If you have more questions, feel free to pm me.The instructable provides an option to do the survey via phone, but if you want to jump right into the anonymous online survey, here is a link.https://docs.google.com/forms/d/e/1FAIpQLSdoRLx0lC...BestEric

Topic by 3164382 5 months ago


Instructables PRO memberships GIVEAWAY!

Hello everyone :)I have a bunch off PRO memberships and decided to make a giveaway :)To enter the giveaway you must to the following:1) Watch my last video in full ( will help to rank it ) - https://youtu.be/O9ev4U4-bsg2) Like the video3) Comment on it4) Share it with your friends and familyIf you did the above please leave a comment here stating that you did all of them and you would like to enter the giveaway ;)Let's see how many people are in a need of a PRO membership :)

Topic by Giulia Art 5 months ago  |  last reply 5 months ago


I Wrote an Instructable to Enter an Open Contest, but Can't....

I wrote this instructable to enter the plastics contest, published it, but now cannot tie it to the contest, due to close three days hence. What's with that? Do I have to delete my instructable and re-post it?

Topic by KellyCraig 6 months ago  |  last reply 5 months ago


Can some one make this sewer cam?

Can someone make the sewer camera at this link? http://www.dtldeals.com/  It looks really easy.  The only thing I can't find right now is the color camera with LEDs (This is not an IR camera, which are easy to find.)

Topic by jeffpaulwilson 9 years ago  |  last reply 5 months ago


Feature Requests: Instructables Editor

Insert TablesCan we have an easy way to insert tables in an Instructable? It's a really arduous task to use the HTML editor to display information in a tabular form.Some use cases for tables: Parts & Material List - includes Part specifications, type, quantity, link, etc Electronic Connections - E.g: If an Arduino is connected to a sensor. The Arduino pins are in one column while the sensor pins are in another column. Explaining Code Snippets (see attached image)Embed GitHub Repository Maintaining code is made easy with services like GitHub especially if you want to make updates or bug fixes. You may have come across an Instructable wherein the code no longer works since it was based on outdated libraries & dependencies. It also encourages users to collaborate thereby keeping the code updated. You can also store electronic schematics, 3D printing files, laser cutting files, etc. Code SnippetsI know its currently possible to highlight code within an Instructable. Example:digitalWrite(led,HIGH); In the above case, the entire line is a code snippet.But what if my intention was to explain the function 'digitalWrite()' and instead only want to highlight the word 'digitalWrite()'.This is how it will look in the current editor:If the pin is configured as an INPUT, digitalWrite() will enable (HIGH) or disable (LOW) the internal pullup on the input pin.Just my 2 Rupees.#Feedback

Topic by Jonathanrjpereira 5 months ago  |  last reply 5 months ago


Ipod touch for droid

Would you guys consider a ipod touch for a droid a good deal. The ipod has a 40$ case and is a 8gb.

Topic by silentassasin21 8 years ago  |  last reply 5 months ago


Ideas for a wire chess set.

I was thinking about doing a wire chess set. Since it was suggested by CaitlinsDad over here: https://www.instructables.com/community/Requesting-feedback-on-a-Fire-Breathing-Dragon-tes/ Came up with this. These are rough (obviously), the rook should have crenelations and I did the king and queen in the same piece. It's like 5 AM and my fingers hurt from working on a wire Nine Tailed Fox (from Naruto) for my son. So, I took a short cut. The picture should make it clear how I'm planning to make things look. The knight is abstract, it always bothers me when the horse is the only thing with any detail. The pawn is about 1/2" x 1" tall, the queen would be just under 2" tall, the king is about 2 1/4" tall, both by 1" wide, the other 3 are about 1 1/2" x 3/4". It is done in 18g galvanized steel. Anybody still reading? Great! I'd love to get some feedback, good, bad, anything to either confirm it is just the best thing ever OR how it could be improved towards that goal. So don't hold back. Cheers.

Topic by Thrasym 6 years ago  |  last reply 5 months ago


Wanted: Crosman M1 Carbine

I'm looking to buy a Crosman M1 Carbine from the late sixties or early seventies. My relatives in the Midlands had one when I would visit them, and I miss that plinker to death. I asked them about it and they said they sold it at a yard sale a while ago. Now that I'm in Ohio, I can own one legally, but can't seem to find one. The rifle is out of production, and every Goodwill, thrift store, and garage sale I've been to has yielded nothing. So, if anyone has one of these rifles in preferably functioning condition and with the wood furniture and "magazine", I will gladly buy it. A broken plastic rifle with no magazine I will also accept. If anyone either is willing to sell theirs or knows where I can acquire one, please let me know.

Topic by DrWeird117 7 years ago  |  last reply 5 months ago


Cable Wall Fishing Device - HELP!!!

Hey guys - I'm stuck on a project that I know your inventive minds will help me come up with a solution. I'm a long time lurker and first time poster :). I'm looking to make my own 'magnepull'. This device, which you can view at www.magnepull.com, is a magnetic system that assists with wall fishes. It helps you pull cable through the wall (which I do on a daily basis as a cable tech). I can't simply afford to spend $100+ for the magnepull device. All of your ideas and help are appriciated in advance! Thanks! Joe

Topic by jslitzker 10 years ago  |  last reply 5 months ago


Problema installazione marlin su anet a8

Salve a tuttiho provato a installare marlin su anet a8 e ho un problema.dopo aver fatto l upload vedo sul display della anet il logo marlin con la versione ma non ho tutte le voci del menu di marlin, in pratica quello che vedo sono dei punti interrogativi dopo le coordinate x,y e z, credo che ci sia un problema sulla scheda.inoltre ho letto da qualche parte che mentre si esegue l upload, sulla scheda dovrebbero lampeggiare alcuni led, cosa che non avviene.premetto che arduino compila correttamente marlin e non ho errori sia in compilazione che in upload, solo che la scheda sembra sorda.se qualcuno ha qualche idea sarebbe un aiuto.grazie in anticipo

Topic by ssibelius 5 months ago


Can you help me identify this glassware?

I found this glassware in my lab at work and I'm wondering what it's used for. It is a regular tube with a inlet and a outlet on the side. Any ideas?

Topic by EmelíaE 5 months ago  |  last reply 5 months ago


Staedtler Marsmatic 700: Tehnical Drawing Pen Maintenance

Greetings peoples, Anyone had any luck reviving Staedtler Marsmatic 700 technical pens that were put away dirty and not used for a while. I just got my hands on a set of seven (retails for ~US$150) for $10, and have so far tried taking them apart completely and washing them in soapy water. So far I'm getting some gray, watery ink from the tight spaces I couldn't dry completely, but no or very little ink is flowing from the cartridge. Any ideas?

Topic by shooby 10 years ago  |  last reply 5 months ago


Member page featured projects

On my profile page, when I try to change which projects are visible at the top and hit save, it never finishes and will still say "saving" after a few hours. Has anyone else had this issue?

Topic by BakkerJo 5 months ago  |  last reply 5 months ago


gas station-type driveway bell?

 Any thoughts on how to rig up one of those bells that dings when a car drives over it, like at a gas station?  We's love to put one across the end of our driveway...

Topic by sarahfish 9 years ago  |  last reply 5 months ago


Best Recipe

Hey everyone,     What is your best recipe? It can be something you made up or something you just found in a cookbook. I want to hear all about your cooking adventures! I will post my recipe for curried spinach soon.

Topic by nerdfighter73 7 years ago  |  last reply 5 months ago


The secret to storing Loquat for wine making!

If you don't know what Loquat means then just look it up on Google or Wikipedia ;)Mostly used as ornamental trees in the warmer climates Loquat fruits come into season right when the summer is on your doorstep.Although the fruits are delicious and high in nutrients, vitamins and so on: Most people do not even bother to try them :(So if you spot them please give the fruit a try and you might get hooked as did.The biggest problem of using Loquat for more than a direct snack is not the seeds inside.They are quite big and you figure ways out to get around them.Biggest hassle is how the fruits ripen.Unlike most real fruit trees there is fixed time.When the first fruits are ready then the last migh be ready about 3 or even 4 weeks later.And depending on the local wildlife you really need to check daily for ripe fruits....So how to do it properly then?Loquat goes bad really fast no matter what you try.Eat them quickly as otherwise they go off.Don't bother...Those are common answers you get from people who had those trees for years in their gardens.The trick however is really simple:Do not plug them off, cut them off!Some half decent pruning sizzors work great here, especially the smaller types.Cut the stem of the fruit so at least 5mm are left on the fruit.Without the hole from ripping the fruit off and handling it with gentle force there will be no damages or open areas ;)Like that the fruits stay fresh for a few days in your fridge, just make sure they are kept quite loose.Do not just fill a big box with them and hope all fruits survive the pressure ;)If in doubt layer them on soft foam strips or cardboard - works really well if can find complete clusters that are ripe enough.If you have access to more than one big tree you can get enough to even make a really nice wine from it.You need to be quick though, so let me tell you how I do it:Prepare a big enough fermentation vessel, in my case a 25 liter plastic drum, purpose made...Add about 10 liters of warm on prefably filtered water, some sugar and a good amount of your prefered brewing yeast.My personal favourite here is port wine yeast ;)You should prepare this drum once you can collect enough ripe fruits on a daily base.Prepare the fruits by removing the stems, the hard spot at the bottom and then cutting them in half.A small spoon can be sharpened to help to get the seeds out if have some with many little ones hiding.Have a pot with boiling water ready and put about 250 to 400 grams of prepared and cleaned fruits in it per load.A quick heating is essential as you want to keep the cooking time as low as poosible.90 to 120 seconds should be enough to get the heat throughout the fruit - please check every now and then that the fruits are quite soft now.This step is vital to prevent self fermentation - you only want your yeast cultures to work on the fruits ;)Squash the fruits when adding them into your drum.To make a full 25 liters with just a table spoon of sugar at the start you will need about 10 to 12 kg of fruits for a high volume and sweet result.The best option due to the constantly changing sugaar content in the fruits is to go with the flow.Stick to max of about 15 liters per 25 liter drum.Monitor the sugar content and alcohol level.Port yeast dies off at a bit over 14%vol of alcohol.Although some strong ones go up to 18% here...If the alcohol level goes over 10% while the sugar content is still quite high then you add water until you get down to about 7%.If the sugar content goes down too low you add more fruits.With still enough active yeast you can even transfer half oa drum to a new batch once the drum is getting too full and the sugar content is still too high.Just a matter of getting used to working with ongiong adding of fruits and water to compensate the time it takes to get enough ripe fruits.Of course there is always the option to go low and start with 5 liter canisters instead....

Topic by Downunder35m 5 months ago


Problem with enrolling a class

Hi everybody, I'm facing a weird problem about enrolloing the woodworking class: as soon as I take a lesson the screen becomes "greyed" and I can't click the enroll button. Could anyone help me?

Topic by Roncino 5 months ago  |  last reply 5 months ago


Post Your art

Just post anything you've drawn of painted or made or whatever. Here is a guitar picture I've been working on. Sorry if you can't see it all. I couldn't get it to work right. I modeled it of of the G-400.

Topic by heavy.metal.nguyen 11 years ago  |  last reply 5 months ago


Old How-To Books

I've always been a fan of old how to books. They often have tips and techniques you don't find in contemporary books. Sometimes they are just plain strange. Other times they are painfully outdated, like an old Popular Mechanics article I came across that shows you how to improve your toaster by adding asbestos to it. Last weekend I stumbled upon this old doll making book at a thrift store. The entire book shows how to make dolls in a kind of odd folk art style, and would never get printed today.In spite of the fact I don't really have room for more books right now, I couldn't help myself and bought it anyhow.Has anyone else come across any interesting how to books lately, or have favorite classics in their collection?

Topic by randofo 5 months ago  |  last reply 5 months ago


Unofficial K'nex Anything Contest

This is the unofficial knex contest! There are a few other knex contests with a certain theme, but in this contest, you can enter anything! Let's get on to the rules: How to Enter: Make a instructable that uses knex. Make a comment with a link to the instructable, than I might accept it. Your instructable has to be made in 2017 or up. You can have three entries entered at a time, but only one of them can win. What to Enter: Enter an instructable that is mostly knex and has instructions. If it uses to much non-knex, than I won't accept it. It has to have good instructions, or it won't get accepted. If it is something small, I will make it to see if it works and to see how good it is. A big ball machine will be accepted if you have instructions of some of the elements. When Will It Be: It will start now and go to November 1. If I get 20 entries before the ending date, I will quit the contest regardless of the date.    Prizes: There will be a grand, first, second, third, and runner up. Grand Prize: Follow from me, votes on all your ibles that you have in contests, and a 3 month pro, and your winning ible in a knex contest winners collection. First  Prize: Follow from me, vote on all your ibles that you have in contests, and your winning ible in a knex contest winners collection. Second Prize: Follow from me and your winning ible in a knex contest winners collection. Third Prize: Vote one of your ible, and your winning ible in a knex contest winners collection. Runner Up: Your winning ible in a knex winners contest collection. If you have any questions, please ask! That's all! Have fun! Current Entries:   Element Force's Shotgun Turret for the TR8 The Knex Inventor's Toothebrush Holder KneXFAN200's Fidget Spinner KneXFAN200's Annoying Clicker Box

Topic by random_builder 2 years ago  |  last reply 5 months ago


Pictures cut off

I started writing a new Instructable and noticed that when I use the preview function the pictures are cut off and therefore weirdly off centre. For some of the pictures it doesn't really matter, but some like I said look weird (as shown in the pictures). I don't see why there is a need to cut the pictures. Is this just an error and will it look better once the instructables is published?

Topic by BrittLiv 1 year ago  |  last reply 5 months ago


Instructables unusable on an iPad unless logged in.

Instructables is unusable on the iPad due to advertisement redirects constantly taking you to a new page. Horrible “Congratulations!!!! You won an Amazon or Walmart Gift Card! Pop ups and redirects. Please fix! This happens in Chrome or Safari in multiple IOS versions. This has been happening for several weeks now.

Topic by Frankincell 1 year ago  |  last reply 5 months ago


Hotwheels Track size?

For a future instructable, I need to know; What is the size of Hotwheels track. ie the inside wideh and the height of the side walls? Any help appreciated.

Topic by motleyjust 9 years ago  |  last reply 5 months ago


Instructables login issues

The site seems to be logging me out as I am browsing the instructables. I tried to re-log in but it wouldn't let me. I am using firefox, just downloaded it to my computer last week since I saw that the site is best viewed with that browser. Really kind of annoying because then I can't view a whole instructable on one page. Dennis

Topic by foothillfrontier 9 years ago  |  last reply 5 months ago


VR gaming parties anyone?

Last week I was "volunteered" by friend to help setting up a rented and empty factory building for what he called a VR gaming party.My job was down to somehow get enough cables and power outlets from that rented industrial power box inside the building.And well, organising about 800m of network cables with routers, switches and whatnots :(After a hard days work and testing all we went for a well deserved beer.Next day I pooped in to see how the computers are going and where things like tables, catering stations, portable toilets and so would go.Well, the later ended outside for various reasons...To my surprise all hardware was basically boxed in and then padded all around.And although not even running at full capacity the computers already created a lot of heating the building.(Mind you we getting into the summer here)The most confusing thing was seeing several elevated work platforms with people creating a maze of wires about 2.5m above floor level.Now it dawned on me that this "party" might slightly more than what I was used to in my gaming years.Was curious enough to ask if I could jump in again when the actual thing starts and was invited for a quick test later that night.Walking around in an empty building while thinking you are inside some racing game was a strange thing to say the least.I learned why there where two people around me and my brain not always makes the right decisions without the sensory information provided by my ears matching what my eyes see.A bit later when most players where set up and active I realised that this type of VR is not for me.Ever seen those movies where someone has really bad halucinations and tries to fight against something that is not really there?Yes, that is exactly how it looked like LOLSometimes all is in slow motion then suddenly they jump shoot their virtual guns and go for cover...I guess if you are not in it then you just won't understand.Watching the screens for a while I could at least find some relation to the action but it was like another world if you know what I mean ;)What do you think will the near a slightly further future bring us in terms of virtual reality?Will it affect us as badly as social media and mobile phones already do or will it bring some real benefits for everyone?By the way: Virtual Reality Cars are already in the design visions!Self driving cars that put you into another world while driving - why think you sit in the car if you can put the seat back and immerse yourself into a virtual beach?

Topic by Downunder35m 5 months ago  |  last reply 5 months ago


What are some good long distance friend pranks?

So my friends got me with a prank, so now I need to prank them back. Two of my friends, I either don't have access to their house, or I am not able to see very often. One friend, I created an ad to have people call him with their best Chewbacca impressions. But I am stumped on what to do for my other long distanced friend.

Topic by KaylaR44 6 months ago  |  last reply 5 months ago