Does anyone know if instructables will make it where we can post a picture inline with the text.

I feel like that would make things easier for people to understand. something like;Do this step. It should look like this:*Picture of step*Now do this. It should look like this:*Picture of next step*.Other forums have this. seems like a basic feature that would help encourage people to post more meaningful projects.

Topic by Terabull   |  last reply


Question: does anyone know if there is an aluminum pipe expander over 6" in diameter

I would like to find a portable aluminum pipe expander a half inch over 6" for repairing aluminum irrigation pipe or any other ideas about how to repair them. thanks ron fancher

Question by flagman12   |  last reply


The save button in deactivated in Acura 15.04.6

I am trying to export a G-Code from Acura I noticed when I loaded the file, starts processing and at some point it stops. I can see the support material did not finish processing and the top portion is not complete.Then I make changes to the settings I increased the height of the layer and reduced the density.In other words is a lighter density overall. If i decrease this a lot, Then the software manages to finish the set up proces and the save button comback active to export Gcode.Seems like the large data of the higer density settings runs out of Disk space to create the cash.Does anyone know how can I fix this problem?I remember when I work in Adobe after effects editing videos, the software ask me to reserve a dedicated folder with an specific disk space just for cash, when this folder is full, the software ask you to empty the temporary cash files to make more disk space for more projects.Does anyone know how i fix the space disk or what ever i need to do to allow the software to finish procesing with higher density?Please helpYou can email me to gamelicruz@gmail.comThanks

Topic by gameli97 


Looking for a cheap 3D printer

Hi! I am looking for a cheap 3D printer that is easy enough to set up for teenagers.Could anyone give me some suggestions?Thanks a lot!

Question by Laney02   |  last reply


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   |  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 place that lets you explore, document, and share your creations. 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


Recent Feed Page

We have heard your feedback loud and clear, and we will be bringing back an easy way to see all recently published instructables. This requires some dev time because we changed things under the hood and need to do a little work to re-create this page. We hope to have it back shortly.We appreciate your patience as we continue refining the site after this release.Update:The recent feed has been released and can be found at this link:https://www.instructables.com/feed/recent/You can also find a link to it on your feed page.

Topic by randofo   |  last reply


Connect several DIY Bluetooth speakers

Hi peeps, I'm looking for Bluetooth (BT) amplifiers that can sync with a connected music device, for example an phone, so the music played from the phone will be sendt to all speakers. Hope my question are understood, and would greatly appreciate your feedback :)

Question by KayOeS   |  last reply


What is this tool?

I ran across this in a toolbox I inherited and have no idea what it does? Anybody have any familiarity with this thing?

Question by DrTurtle   |  last reply


Stairs redesign

Hi everyone!I have this stairs in my apartment, I got used to them, but now as we have a baby they are pretty much dangerous for little guy. I need ideas and suggestions on a design for new stairs. Space is really small. Photos are attached. Thank You!

Topic by AdvanŽ   |  last reply


Do you search for what instructable you are making before you build it?

I was wondering if people try to make original post or do you research it. like i just built a halfpipe but there is already an instructable for that? do i not make an instrucatable?

Question by bpoulton   |  last reply


My Scion tC is tweaking

My Scion tC 2012 has been acting up it starts right up but as soon as I drive and accelerate it feels like it lag when I step on the gas Also another symptom is that the battery icon appears and the disappears at times I come to a stop and sometimes power steering and traction control and speedometer stops working while I’m still driving

Question by VidalC6 


How to make Voltage regulators

I would like to know how to make a voltage regulator for an old generator. The regulator has stopped working and is hard to replace. I need an out´put of 120 volts with 15000 watts and ofcourse the 50-60 hertz. Thanx for your time

Question by Soochi   |  last reply


Converting a .dwg into a .stl for 3D printing a house design (Converting to watertight mesh/ 3d volume)

Hey you guys,I am hoping to use the powers of a crowd to find a quick answer to my problem. I have the architectural Design (.dwg) of a given house (simple model for comparison attached). I need to convert this into a .stl file, preferrably using Fusion360 or Autocad. (newest Version)I understand that the type of the walls and roof is not a 3D volumetric type or a watertight mesh, so the question is how to get there. (Also: of what type of "structure" are these walls - I mean .. they are 3D?)I am an electronics engineer by training, so my CAD knowledge is rather restricted to PCB design. I would be pleased if you can help me out with this, so I can get back to those PCB's :)Thank you guys a lot!lusch

Question by lusch   |  last reply


Updated 3D Model of the Instructables Robot!

Hey Everyone!Happy Friday!This week I uploaded our latest 3D model of the Instructables Robot to Thingiverse, in case you were looking for some inspiration for the Remix Contest ;) It's exciting to see how many people have already downloaded the model! Click here to grab the model, and be sure to tag us on Twitter and Instagram once you're ready to show off how you used this 3D model of our beloved robot mascot!Have a great weekend!best,audreyObscura

Topic by audreyobscura   |  last reply


​HELP! Looking for mechanical engineering advice in building a multiplier/compounding gearbox for a hand crank siren project

HELP! I have a project I'm working on that involves making a hand cranked mini air-raid siren utilizing a 12v generator and a 12v siren. I've done a proof of concept rig where I direct wired the siren to the generator and then used a drill to generate enough RPM on the shaft to get the noise I want. Problem is, I'd like to make this entirely manual and will be adding a crank handle once I get the housing built...which means, I need a way to seriously up my RPM. I've done research into building multiplier gear boxes and compound gear trains and pinions and everything in between, but am going to confess that while I'm obsessed with DIY projects, this one is exceeding my engineering knowledge. I am at a loss for how best to approach this build. What ratio would you suggest? 40:1? 50:1? Does anyone have experience building gear boxes that would be ok emailing me with their advice? The input for my generator is a 20 tooth gear (please don't laugh if I'm totally messing up all the nomenclature...most of my life experience comes from writing and baking and a very short (failed) stint as an EE...this is a totally new world for me.) and I got this information from another sub: it’s a 3600 rpm motor so 60/sec. I think the fastest I would want to crank is 2/sec, so, 30:1 gear box sounds about right. With a nice long crank handle a 50:1 should also work nicely. 10:1 is too slow. Ideally (and this might be where it gets really tricky) I'd like it to all fit into a space that's about 5"X3"X3, not including the siren (I can run that further out, using the leads).I'm attaching a photo of the original proof of concept wire up that I did...and don't worry, I know there are exposed wires, I fully plan on isolating the wires, insulating the whole thing and installing the proper resistors. https://imgur.com/a/MaAR2PQ Here is a link to the generator: https://ebay.us/zgAoDQHere is a link to the siren: https://ebay.us/fEgahDThank you in advance!

Question by Tye Rannosaurus   |  last reply


The Torrefaction Process... Anybody know how to cook wood?

For anyone out there who is not yet familiar with Torrefaction, it is a process of "baking" wood in an over between 200 and 320 degree Celsius (392 - 608 F), in the absence of oxygen. Don't quote me on those temperatures btw... I got them from Wikipedia, and they sound way too hot based on other articles I've read. The idea is, wood contains a lot of biomaterials like sugars, resigns, tar, and water. After you cut down a tree, these materials begin to vacate the wood through evaporation, sublimation, and all the other _'ations...It takes 100 years or so, but eventually, they all are gone, and the wood is super stable, and no longer expanding, moving, contracting and changing. This old wood is also extremely rot resistant and can withstand the elements. For this reason, Torrefied wood is used for decking and outdoor projects mostly. However, the guitar industry has also started to adopt using it, because you have basically aged the wood 100 years in the course of a few hours. You have also increased the price of the damn guitar to the, "your firstborn child" level. I build guitars, and I cannot believe that it can be too hard to bake some wood myself. Here are the variables that I see...1. Vessel: How to create an environment that can be brought to a specific temperature (~350-400 d F), but has also had all oxygen removed? Even if you welded together a steel box that could be locked down air-tight, and had a valve that you could pump all the air out, if you could figure out a way to heat that box to 400 d F, the water inside the wood would def. begin to boil and I imagine would be re-introducing O2. I guess you'd have to re-pump the air out every so-often until all the water was gone. 2. Temperature: Torrefication is also the exact same process that is used to turn ordinary hardwood into charcoal. I have no idea what the temperatures are, but lovely baked spruce for a guitar top has turned a slight aged tan color. But if you cranked the temp, it would eventually turn into pure carbon and be jet black like charcoal. I have no idea how to tell what temp achieves what I want. 3.) Time: I always read that Torrefied wood is baked at these temps for "several/many" hours. How would I ever know?4.) Pressure/Flames/Bomb: I know from watching YouTube videos, that when charcoal is made, wood is superheated in an oxygen-free env. until the volatile oils, resins, etc ignite and burn off, thus leaving Charcoal. I do not want to weld together a heavy steel box that becomes a high temp pressure cooker, that blows my kitchen apart when the oils in the wood inside of it ignite. Does anyone know what I am talking about and/or have any suggestions?

Topic by Dolmetscher007 


Search and communication software for multiple deep sea drones

Why, for clearly group drone work, like clearing mine fields and searching for an airplane lost at sea, don't we have software that can coordinate a group of drones to systematically work together to thoroughly search a programmed area and either blow up the mines or notify "command" of a "hit"?   I can also imagine aerial drones being used to search for lost hikers or for military purposes.                                                                                                                                                                                                                     Somebody can do this. 

Topic by Chrmngblly   |  last reply


Removing Broken M2 Tap from Anodised Aluminium 2014.

Hello Everyone,As you might have read, I have a Milled Aluminium 2014 Block which is Anodized with Black color, Today when I was tapping the holes of it, the M2 Tap broke and got stuck inside that hole, there is no portion of it outside the hole, so I can't unscrew it and pull it out.I saw a few videos on youtube on how to use alum water, or electrolysis(with 10% dil H2SO4) to dissolve or chemically remove the Tap bit from the hole, But my question is is it possible that using any of the above options could destroy the anodizing on the job work. and is there any other easy method I can use?Please Note that the tap bit is M2 and There are no tap extraction tools for a bit that small on the internet (or Locally Available in India) but if you find one Please post links for the same. Please Be Positive and make this community a happy place. Thanks.

Topic by _Boltz_   |  last reply


What Powertools do you have? and what would you recommend?

I have a... Mini Workzone Bench GrinderDeWalt Drill and Driver SetRyobi JigsawOzito SharpenerOzito Random Orbital, Detail, Belt sandersOzito Angle GrinderWhat Powertools do you have and what Powertools would you recommend?

Question by TheInstructableTinkerer 


Here we go again...

Can't remember how many times a topic was started to address bugs, problems, issues and requests/suggestions.But it seems time to allow the developers to read up what the users here actually want, so let me start with some topics and you just post what I left out:1. Working search options.2. Working sorting options.3. A usable Editor for both Ibles and the community section.4. Proper categories and channels, actually working of course...5. Proper HTML editing options until the things the user needs are actually implemented into the editor.6. No forced layouts for Ibles! If one needs a pic in a specific location within the text then for crying out loud stop forcing the user to create a new step for it!7. Transperency for contests! Who, why, where, what... There is no point in contest systems that constantly cause users to question why some Ible was featured or declared a winner!8. Testing changes or fixes before misusing the user as a beta tester - we struggle enough as it is and really don't need more stuff ups every week.9. Working rezising options!! What is the point if a user needs to crop, mame and mutilate his images just to somehow make them fit into the box that holds the preview for the Ible?10. Easy and usable links to the fullsize images in the library without mutilating the filenames! Ever tried to find your images in the library???11. Stop wasting time making a total mess out of this site and just start listening! Three years now expired without anyone actually providing anything that should be standard for every website that allows posting things ito provide good info.12. Make the users want to stay instead of doing your best to drive them to other websites - Instructables is no longer the only option to share your projects with the world but the only one totally ignoring their users.13. For crying out loud: Provide a proper feedback and bug reporting section where you guys actually check in and reply! Where do you want me to post this? Circuits, Workshop, Craft, Cooking, Living, Outside??? You guys must be joking here :(

Topic by Downunder35m   |  last reply


Re-categorizing Furniture 'ables by function rather than alphabetical?

I'm beginning the process of doing some pretty major remodeling projects in my home, and was looking through the Furniture category, in the hopes of finding some ideas. Maddeningly, it's arranged alphabetically by the title of the Instructable! https://www.instructables.com/sitemap/instructable...That makes zero sense, unless you are looking for an 'able whose title you already know. I mean, honestly! -WTF is a "20KRKR", and why would anyone think to click on it to find an 'able for a *rocking chair*?! ( https://www.instructables.com/sitemap/instructables/furniture/ )So I'm wondering how one could go about either re-organizing the category, or providing an alternative browsing structure based upon the actual categorical function of each piece of furniture. Taxonomically, this should not be a problem. Seating is seating, lighting is lighting, work surfaces are work surfaces, etc., and each could logically be subdivided. For example, the Lighting category could be split into Task lighting, Area lighting, multi-function lighting, and Seating could be divided into Group seating (sofas, love seats, etc.), Single seating (arm chairs, side chairs, stools, etc.), and so on. I think that this would be vastly easier to use than the current alphabetical structure. Any opinions pro or con? Any suggestions as to how to make this happen? Is there anyone at Instructables whom I could contact and propose this to?

Topic by Bricology   |  last reply


Can you piggyback RF communications on cellular transmit/receive frequency bands ?

My question is purely hypothetical and there is no immediate plans for any such application. But I was just curious is it possible to make use of the cellular frequency bands (as set out by a country's regulations and by the cellular providers) for some sort of covert type communication other than for voice, data or text types of cellular communications ? Would it be too difficult and complex to develop such an application that uses cellular radio frequencies or could it be done without too much concern for potential interference or the sharing of channels of nearby normal cellular transmissions ? Could such an application be developed without having to cross over many hurdles ? If this covert communications is possible would the cell frequencies used not reach the base stations of the wireless carriers as noise or can a peer to peer communications be possible by passing the base stations ?

Topic by victor43   |  last reply


problem with making my Arduino Ethernet shield to communicate with the server

I have a problem making my Arduino Ethernet shield to communicate with the server, the result on the serial monitor is always: Not connected Cannot connect to Server #include #include //------------------------------------------------------------------------------- byte mac[] = { 0xDE, 0xAD, 0xBE, 0xEF, 0xFE, 0xED }; //MAC Address char server[] = "api.pushingbox.com"; //pushingbox API server IPAddress ip(192,168,1,2); //Arduino IP address. Only used when DHCP is turned off. EthernetClient client; //define 'client' as object String data; //GET query with data float temp; //temp means temperature boolean cste = false; //------------------------------------------------------------------------------ void setup() {   Serial.begin(9600);   if (Ethernet.begin(mac) == 0) { Serial.println("Failed to configure Ethernet using DHCP"); Ethernet.begin(mac, ip);   }   delay(1000); } //------------------------------------------------------------------------------ void loop(){    int temp_ADC = analogRead(0); //read analog input on pin A0    temp = temp_ADC * 5.0 * 100.0/1024.0; // ADC to celcius conversion    tempData(); //packing GET query with data    Serial.println("connecting...");    if (client.connect(server, 80)) {      sendData();       cste = true; //connected = true    }    else{      Serial.println("connection failed");    }   // loop   while(cste){     if (client.available()) {    char c = client.read(); //save http header to c    Serial.print(c); //print http header to serial monitor     }     if (!client.connected()) {    Serial.println();    Serial.println("disconnecting.");           Serial.print("Temperature Sent :");           Serial.println(temp); //print sent value to serial monitor    client.stop();           cste = false;           data = ""; //data reset     }   }   delay(5000); // interval } void tempData(){   data+="";   data+="GET /pushingbox?devid=vB917B251887BF54&tempData;="; //GET request query to pushingbox API   data+=temp;   data+=" HTTP/1.1"; } void sendData(){   Serial.println("connected");   client.println(data);   client.println("Host: api.pushingbox.com");   client.println("Connection: close");   client.println(); }

Topic by SoufianeG   |  last reply


"Upvote" button ??

I'm French and I don't understand the "Upvote" function.Does somebody could explain me ?

Question by TangLB 


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 


Slicing a hockey puck into discs (vulcanized rubber)

I need to slice a hockey puck (1” thick by 3” diameter) into very thin discs (1/16” to 1/32” thick). This can be done... the NHL sells 1/4” puck coasters (see photo). Thinking about a mandolin design where the puck is mounted and the blade moves with my hand in a sled device. Puck rubber is very hard to slice. Thinking of Japanese angled blades (‘7’ shape rather than the American ‘V’ shape). Looked into ice auger blades (for blade thickness and stability). Just about de-gloved my hand with large box-cutter blades (bent as well when cutting the rubber). Any ideas? Raincock@ualberta.ca

Question by Marfeetus   |  last reply


how to make 2-way optical fiber comm. system?

Hello, I’m doing my project about 2-way (full duplex) optical fiber communication system. From what I knew, currently there is only 1-way (half-duplex) optical fiber communication system. Thus, I need to upgrade this system to be in 2-way communication system. How to make it? Can I just replace the transmitter and receiver with the transceiver in order to make it and how? Really need help..TQVM in advanced.

Topic by kamiladnan 


how does a Calgarian find the local maker community to share resources and storage space?

So there's this thing I want to build. there's a lot more to it than I'm making it out to be, but all you really need to know at this juncture is that it would be a sound-proof booth for recording vocals or acoustic guitar and vocals. I currently don't have a long-term address (half of my existence these days is planning trips), but my idea would be to make use of shared tools and materials in exchange for shared use of the end result. in other words it would be made, but someone else would have it in their studio. they'd get use out of it, but I could also use it whenever I want. is this a pipe dream or is this the sort of thing that the maker community is about? FYI I'm in Calgary, and despite my upcoming travels this city is going to mostly be my homebase for quite some time and it's where I want to do this. thanks.

Question by DrProximo   |  last reply


Meet with New Guy:

Warm wishes to Everyone, As I am new here I have no knowledge about this forum, so I would like to know more and also want to communicate with the other members of this forum. Thanks and Regards, Damacio Huang

Topic by DamacioHuang   |  last reply


How does the sling work on a trebuchet? Answered

Hi Instructables community, I don't quite understand how the sling on a trebuchet releases.  I understand how a handheld sling works but what happens with a trebuchet sling. Thanks guys!

Question by SirNoodlehe   |  last reply


Whether people will have a holiday in Netherlands Oct. to Nov. ?

I have a customer in Netherlands,and I communicate with him by email.But now I haven't received his email a few day.so I want to know the reasons,Whether people will have a holiday in Netherlands Oct. to Nov. ?

Question by Ms Lucky   |  last reply


Sorry for the crosspost, but got my solar thing working, posted it on Green.

Just in case you guys don't hang out in Green.If you're lazy:https://www.instructables.com/community/Finally-finished-my-solar-collector-prototype/

Topic by SolarFlower_org 


cb

This is for all of you who still use cbs or are looking to install one for fun or work.  come on in and share ideas for mounting get ideas or just laugh at funny mounts.  i will put up more picks as i track down cars i have put them in.

Topic by abadfart   |  last reply


Can't post my video

I've been trying to post a video and I've tried probably six times but so far, no luck. It's: http://www.youtube.com/watch?v=LFDi6796sjE It's associated with my new jewelry box kit business, Ready To Build  and I'd love to get feedback from the DIY community about my idea!

Question by aunt alice   |  last reply


Broken espresso pot, stove top replacement handle? Answered

Hello, On the second pot of coffee the handle broke, right at the handle pinning hole. ;(  I've attached some picts. I don't have either 3D printing or CNC fabbing tools, but have saved this pot for 4 years hoping to resurrect it. I'd love to redesign a better /replacement one, which wouldn't break, and be cool to the touch.  If anyone knows where to go or is interested in trying out a new process etc. I'm up for that! I could 3D scan w/ one of my tools, I think, although, I 'believe' this is more for 3D art vs. 3D CAD accuracy. If accessing a maker community locally makes the most since, I'm in the Raliegh-Durham area of NC. Thank you instructables community for any guidance, help or where I would I go to collaborate repairing this. kind regards,

Question by simsimphony   |  last reply


New Antibiotics.

Antibiotic resistance is becoming a real problem, and I figured that the crafty and scientific community could help. https://petitions.whitehouse.gov/petition/help-fund-and-add-incentive-drug-companies-create-new-and-better-antibiotics-fight-rising-super/nwTTbVX3 I started this petition on the white house website. Note: This is at no benefit to me, I am just trying to bring awareness to this issue. 

Topic by airsofter1   |  last reply


Vortex Tube expansion

So, i'd like to take the idea of a vortex tube and make it larger.  much much larger.  If i were to use a 3-4 inch pipe, how long would it have to be, and would i be able to supply it with a high power blower (centrifugal), or would i have to find some way to provide 80-120psi at a huge volume? i leave my question to the community!

Question by kretzlord   |  last reply


Solar power comment analysis requested, very interesting.

I recently received a comment from a very new member on a very old forum post. It is in relation to the old post here. Big claims, but I've never heard of a tems though it seems he is referencing it as an activation energy of crystallization or some such. Any takers?https://www.instructables.com/community/DIY-Solar-Cells-through-screen-printing/?comments=all#C5CQFV4FRBPYYW8

Topic by bowakowa   |  last reply


Facial Robot Controll

Facial feature detection is an interesting addition to robotics. Much of human communication is done without verbs and nouns so a robot that can pick up on visual cues from the human face will probably be leagues ahead of it's peers. I imagine that using this feature it can pick up the disconect between words and facial expression to get a understanding of sarcasm. Turing test, here we come!Face Controlling Robots

Topic by lamedust   |  last reply


instructable comments, upvoting and downvoting? Answered

So, the point in asking this is: I really would not like to see instructable comments become something like a youtube page, where you scroll down only to be disappointed in the quality of the comments.  As a community based site and just the fact that I scroll down and groan at people's choices in just trolling (and I know, I've done this before) -is there a possibility in a Reddit-style comment upvoting and downvoting, and sort by best comments?

Question by flio191   |  last reply


Tesla coil antenna?

With the cold and bad weather out there I started again to tinker with my old UHF radio.Trying to build a nice antenna to put on the roof of the hous and such things...While looking up on the various antenna designs I could not help it and followed a few links with antenna designs and specs for all sorts of frequencies.There are things like horizontal or vertical transmission waves or even circular ones.But also some of the basics can be quite different, like whip antennas, dipoles or coiled ones.The later we often see in these keyfob transmitters and receivers for door bells and similar low range, low cost options.Some really old ham radio links got me to the topic or electrically shortening and lenghtening antennas.Things like coils in a whip or added capacitors to match the antenna to frequency and transmitter.A tesla coil usually produces a lot of RF interference, not just on the main frequency it operates on.And from research and physics we learned that for really great distances you need really low frequencies.Like for example the very low bands used for submarine communication around the globe.Here antennas on land can be several km long...The inventor had a few ideas in terms of wireless electricity and communication but I wonder if there is more to it...Despite the broadband EMF a tesla coil produces it is also a really narrow beam antenna.Basically the radiation cone is orientated straight up instead of the usual horizontal patterns we use for communication.The topload again provides a spherical radiation pattern.I am wondering about how a tesla coil would operate as a directional antenna if the topload is replaced with a whip style antenna of a lenght that matches the wavelength...The hip would again provide a more or less spherical beam but the coil underneath would "puch" a directional from underneath.In the classic design the topload is meant to prevent arcing while providing a capacitor so the whole thing is resonant.At lower power arcing is no problem anyways, but what effect in terms of capacitance would a whip style antenna have?Classic pherical or donut style toploads provide little to no gain in terms of antenna properties.If you would use a sphere as an antenna for your CB radio then it would be perfect for very short distance but utterly useless for open range communication.We all know the fun of placing a flourescent light near a tesla coil to show "wireless electricity".Sadly this is more an effect caused by the high frequencies be able to produce the glow in the gas filling.Trying to make an incandescent lighbulb glow is far trickier.Several experiments show that two properly tuned tesla coils can work as transmitter and receiver.But to my knowledge no one ever tried this type of experiment with an antenna on the tesla coil...

Topic by Downunder35m 


Is there a web site for mini mill engraver users?

Is there a web community out there that will have answers to some of the obvious questions that are going to arise when someone gets one of these machines? It has been a real dog fight to find any info on fine tuning these machines. Some of them are confusing to say the least. I am not talking about G or M code, I am talking about machine specs. Setting micro steps for better resolution. Fixing known problems with various machines, that kind of thing. There sure needs to be one somewhere.

Question by dannybush04 


tearing down roof advice

I plan on tearing down my roof with a gas torch cutter, i have included the link to my photo bucket gallery for community advice and input; http://s1120.photobucket.com/albums/l490/handgun12345/ how does asphalt and concrete react to a high temp torch cutter? will i be cutting through metal plates as well? Edit: thanks all great responses, since i shouldn't be cutting huge amounts of concrete just the paste binding the shingles together it should be feasible?

Question by tom.selleck   |  last reply


Custom Golf Carts

The CBS Sunday Morning show recently covered a story about awesome custom golf carts in the Villages retirement community down in Florida.  The Villages has cart-path infrastructure allowing golf cart access everywhere.  A culture of custom golf carts has since developed, with some really awesome builds.  Can I get one with spinners? CBS Sunday Morning Video via YouTube. Villages Golf Cart Man, mentioned in the video, custom golf cart company.

Topic by CrLz   |  last reply


Common problems with 1985 VW golf diesels? Answered

Hello Instructables community! The time has come for me to terrorize the streets with my driving skillz! (I say "Skillz" jokingly) I'm looking for a car, and found a good condition 1985 VW Golf Diesel on Craigslist. The owner says it gets 42-47mpg, and, being an old diesel I believe it. But I was wondering if there are any common problems with Golfs of that age? Anything I should be worried about when buying one? Thank you in advance!

Question by Zem   |  last reply


Physics Competition Car Design

Hey Everybody, I'm new to the community here, and i am hoping that with so many great minds on this site, some great ideas will be generated. the deal is, for a competition, my school needs to build a small car, around 1foot by 1foot, and it is propelled by three average sized rubber bands, it need to travel three meters straight, make a 90 degree right turn on the spot and travel 2 meters to stop in a parking zone, it has to turn and do the whole course unaided, Any great ideas? Thanks for helping me out

Topic by techball   |  last reply


Best non-lithium battery technology

Hi Instructables community! I am looking for any insight / suggestions regarding what battery technology (non-lithium) that offers the best specific energy (MJ/Kg), preferably rechargeable and reliable. My research led me to looking to consider rechargeable alkaline batteries, given data on wikipedia (the BEST source ;)  ) but are these even manufactured? I cannot find any place to buy them. BACKGROUND: I am in need of this for the design for the solar car team at UVa, as the BMS (Battery Managment System) mandates a backup battery that is separate and any lithium technology is not allowed.

Question by -max-   |  last reply


How to (properly) glue a SMD leds to (slightly flexible) plastic?

Hi people or robots, For a project of mine I need to glue SMD leds to a transparant piece of plastic. the LEDs need to be glued face down on the plastic so the soldering contacts are facing up. I've already tried super glue (CA glue) but this didn't hold, the LEDs would pop of when the plastic was flexed a bit. What would you (the awesome instructables community) recommend? I've ordered some two part clear epoxy to give that a try, would that work?

Question by theexternaldisk   |  last reply


3D Printing Business Question

From reading https://www.instructables.com/community/What-3D-printers-can-do-and-what-they-cant/, this article. It seems as the sky is the limit as long as I have a good artist, a proper 3D modeller and the correct material.  However, I want to start a business whose main focus is 3D printing. What are things, I really can't make? Besides hiring an artist and 3d modeler. What printer would you recommend for the business idea? How many would you recommend as starting point for a small business with an expansive focus? Is there some multiple materials printer that includes glass, plastic, resin, wood, etc.?

Topic by VictorM19   |  last reply