How Do You Design Your Knex Guns?

There are lots of innovative Knex guns out there. But how did you come up with the idea? Please share your story and methods! -Did you try endlessly to make something work or purely by accident did you come up with a great idea? -Do you draw diagrams or sketches before design, or do you just rip out your tub and start building Knex ? -Any particularly interesting stories behind a gun design? Please share!

Posted by crestind 11 years ago


Design tool for PVC pipe based design

Dear all, I am wondering if there is any simple design tool available which has PVC pipe like connector objects for designing PVC pipe models. Thank you in advance.

Posted by Tarun Upadhyaya 4 years ago


Inspirational Interior Design Photos eBook

EBook having images of interiors designed by professionals. Click the link below for details and download link.Interior Design Ideas

Posted by aurictitan 10 years ago


Open Source Design Software?

Hello Instructables forum, I'm wondering if anyone knows of some nice open source design software? I'm in the process of creating my next instructable (a dining table) and would like to design some legs on the computer before making them. Cheers, Chris

Posted by chrismo 4 years ago


Instructables Design Comp

Hi.  I would appreciate clarification regarding the entry criteria to this comp, please.  It talks about things made of wood, and being related to that recent wood care competition.  I feel sure this is just a temporary glitch. If I feel the proper details match the sort of thing I want to enter, I will jump in with both feet, but at the moment my entry would not necessarily be wood related. thanks for running such fabulous competitions

Posted by dimdiode 6 years ago


finding a best way of design solution

Hi. am finding a best solution for my design. look at drawing. there is 4 bars. about 2~3cm long each. their tip is holden on something in middle. when you pull up right black bar, right gold one will pulled down. "in same degree." when you pull down left gold bar, left black one will pulled up. "in same degree." likewise when you pull up two black bar, two gold bars will pulled down. "in same degree." its not just a normal hinge cause their move will interactive.15 degree up - 15 degree down. what can be a best (simple, durable, hard) solution?

Posted by Sung-hyeonY 1 year ago


Aryana - Intro

Hello everyone.I am new here on instructables. I am mosaic and ceramic tile artist, and will post more on those arts later. Ok, now I put up my first one & I really want some critical feedback. It is Designing a Mosaic For my next instructables, I want to do more intricate proceedures- so I need to know if my process images/notes are good - or do they need work?

Posted by aryana 11 years ago


Need help making this bunk bed a reality!

So, I want to do this project with my kids. They’re 5 and 7, and I want to start early in educating them that all this stuff that surrounds them is made by someone, and that someone can be them...Also, they want a bunk bed. :)Take a look at the photo...Can anyone help me turn this picture into a design? I’m pretty handy, but I’d love it if someone with the carpentry-and-CAD skill intersection could take a crack at turning this pic into something I can use...Best,Dutch

Posted by DutchFlyer 4 months ago


looking for reference/info on basic electromagnetic coil design

I am an inventor/re-designer and work with a wide variety of technology, tools and materials.  I repair all of my tools myself and have built a number of custom tools and devices. I was a professional auto mechanic for many years, as well as growing up and working as a building contractor for many, many years.  From those and other experiences, I have been exposed to many different coil-based devices. I have been replacing/repairing coils, coil actuated valves. relays, etc for 30+ yrs, but I've always just replaced the coils with the appropriate new part. I did rewire a relay last year, for the first time, when I couldn't bring myself to pay $80 for a new coil.  I measured the wire diameter, then carefully uncoiled it, measured the length, then rewound it with the same length of wire.  I figured it was worth the gamble of $4-5 on wire.  It works and controls my 240v air compressor, but it was a bit of a tenuous and nerve wracking job; I had wire ALL over my shop for an hour or two. I'm finding a need/desire to understand how different voltage coils, ie: 12v DC, 120v AC, 24v DC... are calculated/designed.  Can anyone point me to a resource that will explain the process on a non-electrical engineer basis? Thanks, GeoD

Posted by GeoNOregon 4 years ago


Arch:How can I make the inner shell so it resists stepping on and it's curved?

To do a low poly covering of this is easy, but what could I do to make it curved?

Posted by DIAGONALLIS 1 year ago


SEW DIFFERENCE! How to transform throw-away T-shirt into a wave of T-shirt?

It's difficult for me to throw away my T-shirt, they like my friends, we do have deep feelings with each other. So I decide to transform them, to give new life to them.  Here are what I tried. Actually, I do like sewing things in my daily life:). I share a brief recipe at Instructables. You can review https://www.instructables.com/id/Minimal-Crossover-Vintage-style-Camisole/. Basically, I just have fun. However, more and more people were attracted and give me suggestions on how to design better, which inspire me to redesign more creative cloth.  In addition, I encourage everyone to redesign their own thing but not throw them away, because the things you used in your daily life  stands for your emotions in that stage, it's your life and your own thing. We can transform them or send someone who need it. Hopefully, DIY makes things different and make you different.

Posted by Wells_Tu 2 years ago


LFG that wants to learn to make games together

*FOR LEARNING NOT FOR PROFIT* So, I've got a few game ideas floating around in my head that I'd like to make, or at least have a hand in developing. However, I do not have the knowledge or experience yet to make these games, so I'd like to make a team that wants to gain experience working on a project that they can add to their portfolios. Should help those who have ability but no guidance especially, or who just want to have fun and make a game. 1) Modern version of Chromehounds with a lot more single and multiplayer features. Idea for the name: Wolf Pack Relative Difficulty: Easy Shooter with overall simpler animations and modelling due to no soft models such as humans required. Can practice making a large variety of models, sounds, stats for items, and hit detection. Also play around with various textures and allowing for players to customize textures. I know M.A.V. is being made but so far that isn't quite what I'm looking for. I have my own ideas on squad mechanics to add. 2) Darker story RPG set in the Mediterranean. Combat similar to Dragon's Dogma. Idea for the name: Road to Retribution Story Prologue http://roadtoretribution.blogspot.com/ Relative Difficulty: Hard Dragon's Dogma has a very awesome combat system, but that also requires a lot of animation skill to pull off. Models are harder because they are organic and so is texturing. 3) Science Fiction Adventure/Shooter using NASA models as inspiration for human designs (look up NASA FTL ship) Relative Difficulty: Moderate Blend of the previous two in terms of how easy and hard for the same reasons. No story/lore behind this yet, figured if I can get a group of people together I can always make the lore based on suggestions. 4) A Total War style game on the Wii U. I do have an idea on how it'd play but... Relative Difficulty: Hahaha, no. For a fresh team to work on that I would have to say no. 5) Whatever the team decides. 1-3 are ordered according to which idea i want done first. #4 I'd love to make simply to prove that the idea would work, but I don't see me getting a group capable of pulling off Rome 1 essentially with the control system of the Wii U, especially since I'd need to get a Wii U myself to test out the capabilities of the touch controls. Still, I'd like to think it's viable for a larger company. I myself am learning Unity and Maya atm, have dabbled in Blender a bit as well, but I am not far enough to carry the modeling by myself. I can however write the stories and dialogue much better, have an idea on how to break down the design process to increase the efficiency, and will ensure we don't overextend ourselves. Remember, the entire point of all this is to get a team to work together, learn the problems that arise working in a team with people in different positions in this industry, and most importantly, get some experience making a game. All while having fun. If it seems the game is going really well, we could crowdfund it, but that isn't the point. This is to learn the game development process by experiencing it outside of a classroom. Positions wanted, but not exclusive Modelers Animators Concept Artists Texture Specialists Sound/Music Developers Programmers Level Designers

Posted by ElGreco1 4 years ago


Design Changes on Instructables

As you've noticed, we've been making some design changes to Instructables.  We're trying to accomplish a number of things including making it easier to find content you're interested in, creating more compelling products for advertisers, and supporting and growing what we've already built.  Here, I'll share the details around some specific design changes. One of my big goals for 2010 is to increase our direct visitors.  A direct visitor might type our URL into their browser, click on a link in a newsletter, come to the site from one of their bookmarks, or search for a phrase that includes "Instructables".  Other types of visitors include searchers, who come to the site from phrases such as "sweet potato fries" but aren't specifically trying to reach Instructables.com, and visitors from blogs or news portals.  My thesis is that more and more brand advertisers will want to reach our true community, and not people who are just passing by.  A pretty good proxy for our true community is direct visitors, and we've already seen the savviest advertisers try to reach only that community by advertising exclusively on our homepage (the recent Apple campaigns, for example).  To grow our business and ensure that Instructables thrives, it's important that we have great opportunities for advertisers, and a stronger community means more great Instructables and more intelligent people seeing and commenting on your Instructables. To this end, we've been working to increase the likelihood that someone will go deeper into our content, and remember to come back in the future.  Said another way, we want that sweet potato fries Google search to introduce someone to Instructables, and then have them think, "wow this site is amazing, I'll bookmark it, sign up for the newsletter, come back, etc..."  Some of the most dramatic changes are on the homepage and channel homepages.   On the homepage, we've removed the intro text from the links to Instructables.  By making the homepage less cluttered with words, I was hoping to increase the number of people clicking on an Instructable.  Also, I felt that the beginning of the intro text didn't contribute much to my understanding of the Instructable, and often it was no more than a repetition of the title (and at worse a note about how it was someone's first...).  Removing text to increase engagement might seem counter-intuitive, but with too much going on, visitors sometimes just leave rather than decide what to click on.  So far, clicks from the homepage are flat or slightly up, so this change hasn't had a negative effect on deepening visits, and may over time move us in a positive direction.  On the channel homepages, we've drastically changed the layout to be more blog-like.  My theory here was to give people a format they were more familiar with from elsewhere on the web, and results have been dramatic.  The exit-rates (the percentage of visitors that leave Instructables from a particular page) on our channel homepages have been cut in half.  For example, the exit-rate on the home channel homepage has dropped from 12% to 4.5%.  This is really good!  To me, this indicates that on the channel homepages we're giving visitors more compelling content, and they are more likely to dig into that content. In support of our efforts to deepen visits, we've been doing similar smaller changes all over the site. Most of these are based on our traffic and click analysis, and if my theories are wrong, we change back or try something else.  One particular change that has generated concern is the removal of the Answers link from the header.  This has nothing to do with our support of Answers in general -- it's based on data.  That link was almost completely unused.  Coming again from the perspective of making a slightly cleaner look, we removed it.  As the link wasn't generating any clicks, traffic to Answers has been unaffected.  In fact, as we're highlighting specific answers on the channel homepages, traffic to the Answers section is actually up 7% since we removed the link:  from Feb. 1 - 18 answers did an average of 11.1 K pageviews per day; from Feb. 19 - 28 it's done 11.9 K pageviews per day.  Perhaps that's noise in the data, but removing the link certainly hasn't been the end of answers, and the trend since the change is positive. So, we do rearrange the furniture from time to time, but it's never without reason.  We're always trying to make Instructables better.  We've messed up in the past, and we'll surely mess up in the future; but I think this is good, because if we're not reaching and striving a little bit beyond our comfort zone, we're not learning and improving. 

Posted by ewilhelm 8 years ago


Looking for designers

Milimeter studio has working on a 2d platform game and is looking for a few designers: - Art and graphic designer : with sample work, with strong hand drawing and full knowledge about an art program like Adobe Photoshop knowledge. - Frame by frame 2d animation designer: For motions of game's character : with sample work, with strong hand drawing. All of the Milimeter contacts (send files and etc) is via email address. So international designers from all of the world can work with Milimeter. Contact us: milimeter.ir@gmail.com

Posted by farzadbayan 7 years ago


anyone please help me if you can design a 3d model for printing

I need help making the 3d design for a 3ds shell not a case but the shell

Posted by -Tykora- 5 years ago


What are the skills of plastic bottle design?

Hello friends, I want to know the skills of plastic bottle design,because i have one style bottle to make.Could you give me some advice? Thanks and Best regards.

Posted by JackYan09 4 years ago


Help to Knit a Moustache design into a jumper.

Hi there. Can anyone help me create a template to knit a moustache into a jumper? I need help! Thanks

Posted by miss_purl 6 years ago


PCB design and cicuit simulation software

Hi all first post here could someone recommend a good software package for PCB and circuit design and simulation on a budget preferably compatible with windows vista and 7 and with CNC capability (looking to build one in the future)

Posted by pmills4 5 years ago


LM35 circuit design

Hi, any advice on putting an LM35 into a circuit to control a small (120w max) DC immersion heater element so that it maintains water temperature around 38C ? Thanks

Posted by RionZion 1 year ago


How Do YOU Design K'NEX Guns?

K'NEX Gun Builders of Instructables, The reason that I am posting this Forum Topic is that I would like to hear how YOU design YOUR K'NEX guns. What are your secret techniques and tricks of the trade? Please post your comments and answers below. Thanks!, -The Knex Inventor

Posted by The Knex Inventor 2 years ago


2009 DiabetesMine Design Challenge

Design contests are great and all... but design contests for a good cause are even better! Let me introduce the 2009 DiabetesMine Design Challenge, a contest for improving the life of people with diabetes through innovation. It appears that there is even a special judging category for those of you budding inventors under 18.If the prospect of doing something to greatly benefit others isn't a large enough reward in itself, keep in mind that there will be a number of other awesome prizes. Foremost, you can win thousands of dollars in cash for the development of your great idea. You can also win the chance for a consulting session with the world-renowned design firm IDEO and admission to the Health 2.0 conference.So, go put your thinking caps on and start regulating some glucose.Full contest details can be seen here.

Posted by randofo 9 years ago


Gear design

Hello there, I was wondering if you could help me: I need a simple program to design a basic gear, a pair of twin wheels. I need to set the number of cogs and the diameter of the wheels; this mechanism has to be as tight as possible. The idea is to print the wheels on paper and then cut a metal sheet accordingly; can you tell me a way to transfer the image directly on the metal? That would be of great help... Thanks.

Posted by Madness helps 9 years ago


Design my new Avatar! (Contest Closed)

Use Photoshop, Paint, Gimp or some other image editing program to design my next avatar. Add sunglasses, beards, beats, etc. Put your design in the comments and if I chose it when the contest closes I will send you a winning patch plus I will use the design as my avatar for a month! Hurry...contest closes tomorrow. I have changed it so that all 3 winners below get a patch. (Gold, Silver and Bronze patches.) Plus I will use vroom...vroom's winning design as my avatar for a month! Winners: 1st Place: vroom...vroom...'s "Lego Dilbert": 2nd Place: canucksgirl's "Lego Man Lives": 3rd Place: Shadow Ranger's "Salt Water Block Croc": Thank-You Everyone for entering and I will do this again sometime!

Posted by iproberry1 6 years ago


Coming Soon: Health by Design Contest

Coming soon to Instructables.com: the Health by Design Contest! We want to see any Instructable that can promote a healthy lifestyle or make life easier for those whose lives have been changed by injury, sickness, or a disability. This contest is open to all sorts of Instructables. Promote activity with an inexpensive bit of exercise equipment, make a prosthetic limb, mod a wheelchair, it's totally up to you. Prizes and more info to come soon.

Posted by fungus amungus 8 years ago


CAD for Circuit Boards

What software do you use for designing circuit boards? Do you like it? I've been using Eagle, but have been entertaining the idea of switching it up.

Posted by randofo 10 years ago


Creating a design team

Hello I am mrmimosizer  I am starting a group to make games with as it has always been a passion for me to do so. I already have 5 story ideas written down and am starting to learn programming and could use people to help make the dream a reality. To contact me  skype: mrmimosizer  Email:m1mosizer@gmail.com

Posted by mrmimosizer 4 years ago


Annoying design flaw in new editor

In the new editor, the file names of images never become visible, not when you click on them, not when you hover over them. When your images are similar to each other, that makes it very hard to get them in the right order (see the screen shot - that is not the order I took them in, nor the order they were uploaded). Please, can we have the file names back?

Posted by Kiteman 4 years ago


Greener Gadgets Design Competition entries

Core77, in conjunction with GreenerGadgets, recently held an open design competition. (See also fungus amungus' post, Design a Green Gadget and Win Some Cash).Well, the results are in, and there are some really clever and/or far-out ideas among the entries. I figured I would cross post some of my personal favorites. Not all of these are great design, good ideas, or even work - some are just purty. Brenn10 already posted the 2nd prize winner, the Gravia gravity lamp, which has since been retracted by the designer due to it's physical impossibility :-).In order, we get:1) Grand prize winner: The EnerJar - an Instructables or Make project if I ever saw one! Now also has its own website with instructions on how to make your own: http://www.enerjar.net/.2) Arc - a very minimalistic wood surface armband/watch. Kinda like J_Hodgie's Solid Wood Digital Clock 'ible.3) Plug-in Watch - such a simple idea that if it isn't on sale yet in Hong Kong, I'm sure it will be by next week...4) Aperture - a shower head that tells you how much water you're using (powered by the flow of water, naturally)5) Powered by Play! - motion powered and operated Wee/iPhone for 5 year olds. Excellent idea, provided they can make it sturdy enough...6) Digital Tattoo Interface - definitely one of the more "out there" submissions...

Posted by Patrik 10 years ago


Fixperts - Designers doing something useful!

I was recently alerted to Fixperts.org. It's a fascinating concept - "real" designers get paired with folk with actual, unsolved problems (typically related to a mobility issue), and produce bespoke solutions, making a nice little video in the process. Introduction to Fixperts from Billo on Vimeo. It's mainly a UK thing at the moment (some of the folk from Sugru are involved, although it's not a Sugru scheme), but there's nothing stopping you, dear reader, starting up something similar through your own school, college or Hackspace. There are even guidelines on the site on how to join in. I've been told of companies that make bespoke prosthetics, or connect problems to solutions, but this is the first voluntary group I've encountered that drags Design out of the showroom or gallery, directly to those who actually need these skills now. I'm going to keep an eye on Fixperts, and I think you ought to as well... @Fixperts

Posted by Kiteman 6 years ago


Video Game design help needed

I don't have knowledge in coding or modeling, and I am not artistic. I basically need help with everything but storyline. The game I want to make will be very similar to the Hunger Games because they have not released a decent game for the book or movie. I need help making models, coding the game and making the art. I could probably do the audio myself, and I already have many things planned out, I just do not know how to implement them.

Posted by metalshiflet 4 years ago


"designer" to help make exotic reflectors for unattended solar cooking.

I have been thinking about this idea for a while but there are so many options that  I took a while to pick one.  One idea was to have the 2 laser pointers on a turret like a microscope and move the model around underneath. Before you discount it as rubbish, please look about 5 minutes into this video  And pause it at about 5min 50 to see the "tuba like horns" http://www.youtube.com/watch?v=TSMzKg6fwJ8    HIs design was done by computer and in my view is way too complicated but I hope it opens peoples eyes to some of the failings of parabolic dishes for unattended solar cooking. There ARE other options and they do not look anything like what we imagine. I believe that people can design exotic fairly high efficiency solar cookers (with a range of cooking times)  using the method I show. If anyone wants to help make the instructable more understandable, I can open it and make a collaboration. Or I can credit people for their input.    Also, it is community commons so it is no longer my idea, release and improve it anywhere you want. I will be improving the instructable myself over the coming weeks but do not expect instant improvement. The instructable is at https://www.instructables.com/id/Method-for-designing-reflectors-for-unattended-sol/ and I have attach a pic here to get people started (I will improve that picture too). Brian

Posted by gaiatechnician 9 years ago


OPEN DESIGN RESEARCH

ANSWER: opendesign@gmx.de Dear Sir or Madam, dear creative worker, dear developer and designer In consideration of growing interest in open development processes and their spreading, we are trying to get to the bottom of the »open design« phenomenon. In the course of our investigations we are very much interested in your opinion. The survey consists of a few questions related to hierarchy in open projects. At the end of our observation there will be a theoretical study, which all participants may receive a digital copy of, if so desired. (Just note that the final work will be written in German) First we would like you to answer eight questions according to a given scale. You are free to add a short comment to each answer. Finally there are two questions, which allow for a more detailed answer. 1. Does "Open Design" have a future? (No) 1 2 3 4 5 6 7 8 9 10 (Yes) Comment: 2. Is there a danger of losing individuality due to the openness of a project? (No) 1 2 3 4 5 6 7 8 9 10 (Yes) Comment: 3. Does the loss of individuality imply a decrease in quality? (No) 1 2 3 4 5 6 7 8 9 10 (Yes) Comment: 4. Which hierarchic structures exist in your project? In which relation are the numbers of initiators and participants? (Initiators) 1 2 3 4 5 6 7 8 9 10 (Participants) Comment: 5. Who has the power to decide which changes to implement? (Initiators) 1 2 3 4 5 6 7 8 9 10 (Participants) Comment: 6. Open processes may result in a vast variety of designs. What kind of rules & restrictions are set that may influence individual freedom in order to maintain a high level of quality? What is your ideal conception? (Many restrictions) 1 2 3 4 5 6 7 8 9 10 (Much freedom) Comment: 7. How much expertise is needed to participate in an "open design"- project? (Expert) 1 2 3 4 5 6 7 8 9 10 (Amateur) Comment: 8. Are there moments when it depresses you that open design projects cannot easily be closed again? What kind of moments are this and why do you still stick to open projects? (No) 1 2 3 4 5 6 7 8 9 10 (Yes) Comment: 9. How are complex assignments broken down to many individual tasks and how are these tasks distributed among the participants? Where are the limits of each competency? Comment: 10. To what extent do you understand yourself as the actual developer of a product, that you are working on together? Which kind of copyright protection is used? Comment: In case you would like to dig deeper in this topic, we also offer a more comprehensive questionnaire. Many thanks and kind Regards, Manuel Milde und Sebastian Piatza (Faculty of Design - University of Applied Sciences Dresden)

Posted by boscij 7 years ago


Need help PCB Wizard

Hi all, I need your help, I'm making this project I found here: http://talkingelectronics.com/projects/Simon/SimonP1.html But I need to design the circuit in PCB wizard, Is there anyone that could mimic this picture in PCB Wizard: http://talkingelectronics.com/projects/Simon/images/SimonPCB.gif I would be really grateful! Also could you tell me if the picture above features the regulated 5v power supply or will I need another PCB for that? Thanks all!

Posted by PREDATOR_UK 6 years ago


The Largest Parsons CDT Thesis Show Ever!

If you're in New York be sure to check out the BFA thesis exhibition for Parson's graduating Communication, Design and Technology class. There is sure to be some amazing computer-based art (and other strangeness that defies explanation). This is not to be missed!Opening:Wednesday, May 14, 2008: 6:00 - 8:00 p.m.Chelsea Art Museum556 West 22nd StreetHours:Tuesday through Saturday,11:00 AM-6:00 PMThursday,11:00 AM-8:00 PM

Posted by randofo 10 years ago


Need Help with Minimalist Table Design

Hello again dear friends. Today I'm looking for help among the carpenters and metalworkers of the community. I need to build a new computer desk because I need a lower, wider, and longer work surface. I opted for a minimalist and modern design that I've included in the pictures below. I'm going to have local craftspeople make the wood board and steel frame, but I don't trust their expertise very much - so I would like to ask for your help regarding a few issues. Regarding woodwork: - I've understood that I should not put a beam across the boards for strength - I read online that this will induce splitting due to shrinkage. Is this correct? - Is 4cm (1" 9/16) board thickness enough to support weight (heavy monitors) considering the large span between the table legs? (see picture of underside) - The 4 boards used would be teak wood or Ecuador laurel (Cordia alliodora), full length x 7 inches wide Regarding metal work:  - I'd like for the table to look as minimalist as possible, but I still feel I need a way to strengthen or stiffen the frame so it doesn't wobble side to side. Is there a way to do this without visually changing the table? I'm planning on using 1" x 2" square galvanized tube.  - I've implemented a crossbeam to help prevent sagging of the board. Is one enough? It's offset so as not to reduce leg space. Any help you can provide will be much appreciated! André

Posted by colorex 2 years ago


Advice on making exterior more appealing.

I am in the process of renovating my house.  I have redone the porch with pvc balusters and columns but it still needs something and I don't know what it is.  Maybe the porch needs painted a different color or maybe shutters.  Im just not sure.  Anybody got any advice?

Posted by brian41527 6 years ago


Selectively magnetized (hemi)sphere

Hi everybody! I'm looking for a way to construct a hemisphere, - maybe 1.5" to 2" in diameter - ideally with no moving parts - where any of a number of areas on the surface could be magnetized at will I thought of having an array of tiny electromagnets starting from middle and radiating to under the surface, but frankly, that would take a long time, and I figure there would be insulation issues. Any suggestions?

Posted by drmab 4 years ago


Recumbent cycle: "blue sky" design query

I am not one of nature's cyclists. I didn't actually learn properly until I was in my twenties. My bike is very old, very rusty and very, very heavy.However, I feel that I "ought" to cycle more, for shopping trips and the like. I quite like the idea of switching to a recumbent, but they are expensive (current available funds: zero).So, I'm playing with the idea of rebuilding my mountain bike into a recumbent (and learning how to weld on the fly?).In the sketch below;The black section is the back of the old bike, turned upside down.The blue section is the front of the donor bike.The red part would need fabricating somehow.I haven't thought properly about steering mechanisms, but probably under the seat, via cables to arms welded to the forks of the will-be-the-back wheel.Would the bike, as I have sketched it, in principle, work?I'm bothered about stability, especially at take-off and landing. Am I worrying unnecessarily? I have access to a second donor cycle. Is there any mileage thinking about "doubling up" the blue section, to make a trike? Not massively wide, but I could add luggage space, or an extra rear-facing chair-style seat.Brakes: before I cut up the bikes, am I right in thinking that I just remove the cables and levers from the handle-bars and add them to the under-seat steering?Gears: the donor bike is a mountain bike, but I never used all the gears anyway. This area is pretty flat - can I get away without any gears?Coasting: although the back of the donor bike ends up upside-down, it is still turning the same way, so I can still coast OK.I'm sure I've missed something obvious...Anyway, even though I've not decided to do this for certain, I'd appreciate any comments or thoughts.

Posted by Kiteman 10 years ago


Site Feedback

Hello, I have some feedback regarding the site. First, the page width is a little too big. On 1024x600 resolution there is a horizontal scrollbar, which seems kind of useless to me and takes up vertical space. Secondly, the link named Feedback on https://www.instructables.com/about/contact.jsp directs to https://www.instructables.com/community?categoryGroup=help&category;=faq, as does the link named FAQs on the Contact Instructables page. Third, a button to hide the search header would be a nice feature, it's unnecessarily big and takes about 1/6th of vertical space on resolution of 1024x600. I hope I explained understandably and that you can make some tweaks. Firefox 21.0 Windows 7 Home Premium

Posted by rein365 5 years ago


Using Knex/Lego for design visualisation

Hi all, I was just wondering how many (pro companies) uses Knex/Meccano/Lego for design visualisation. In other words, do you use K N L for creating a "mould"? And if so, show me the art....... :)

Posted by TT2 5 years ago


How to delete drafts of the Design Challenges?

Recently, I participated in the Bose Build contest. While I was editing m entry for the contest to upload proper rendering I created some 8 drafts of the same design and now they are stored in my drafts folder. The moment I try to edit it, it says that the I'ble is not compatible with this editor!

Posted by alamtania 1 year ago


Circuit Design Edumacation

Can anyone direct me to free internet resources that will help me with circuit design? I can usually figure out what type of parts are needed for a given circuit, but am often completely stymied by what specific parts to select - what resistor value, which transistor, what voltage and uF cap? What's available? Thanks!

Posted by homba 10 years ago


Portable software for veroboard design?

On the hunt for software that will allow me to do layout designs for veroboard circuits, however all I've found requires installation and doesn't have a portable version available. Does anyone know of any that has a portable distribution, bonus points if it contains breadboard and PCB sections too. Forgot to mention, Windows user here. Thanks!

Posted by Auraomega 6 years ago


Ponoko 10-day Jewelry Design Challenge

Ponoko is holding a Laser Cut Jewelry Design Challenge. Design a piece of jewelry, made by laser cutting, for a chance to win free copies of your designs or $1000 for the overall winner. Be sure to share your creations here with an Instructable, or Slideshow Instructable!The Ponoko 10-day Jewelry Design ChallengeBody adornment dates back 30,000 years. It serves as a way to communicate our personal identity to the world and has a physical and emotional relationship to our bodies.Your challenge is to create inspired and evocative jewelry on a laser cutter - within 10 days!You can treat material in a variety of ways using a laser-cutter. You can cut shapes and mark patterns on the surface. You can create a single 2D piece or something more complex assembled from a number of parts.Laser surface treatments can be a graphic in nature or a texture. There are infinite possibilities for treating the surface of a material to add value and interest.Jewelry need not be 2D. You could make 3D jewelry using layers of material connected in an interesting way. Think about how multiple pieces can be combined to create an interesting design.Attention to detail, material combinations, connections, production feasibility and quality will be key to making your design stand out.Up to $10,000 in prizesUp for grabs:* Open roundo The designers of the top 25 entries get their product made for free - that's materials, making and shippingo Plus they'll be invited to submit their entry into the final round* Invitation roundo The top 10 designs win US$300 casho Plus there's an additional Grand Prize of US$1,000 cash for the overall winnerDesign requirements:* It must be possible for Ponoko to make the main component of your design.* Designs must be new (i.e. not already hosted on Ponoko).* You can only use materials in the Ponoko materials catalog.* You can use extras such as hooks, chains, clasps, pins etc (supplied and assembled by you).* If you submit multiple designs, they must be unique. Please don't just submit iterations of the same design.* Designs may be as simple or as complex as you want.

Posted by ewilhelm 10 years ago


CLIENT NEEDED TO DESIGN A PRODUCT FOR

I am currently taking my DT A-level and as part of our final project we have been instructed to find a client with a product in need to be manufacture and designed and to do this for them, with them in the end being able to keep the final designed product, however they would need to fund the project. So I am looking into finding a client with a unique project, that uses multiple materials and processes for me to design and make for them, that would be willing to give me regularly updates and feedback into their views on the project so the final product will be what they wanted. If you believe this to be you please contact me and we can discuss it further! 

Posted by SophieW24 1 year ago


Ponoko 10-Day Design Challenge -- Puzzles

Ponoko is running another 10-day design challenge with $5000 worth of prizes. The theme is puzzles.Ponoko 10-Day Design Challenge -- PuzzlesWe want to make it easy for you to do cool stuff. And with the fantastic response we got from our first Design Challenge we've decided to run another one showcasing Puzzles. So this is another chance to show off your design skills, get your creations made and delivered to your door for free. Oh, and win $1,000 in cash plus several thousand dollars in other prizes.Design briefPuzzles can educate and entertain. They can be a solitary exercise or a group activity and when you have memorized how it goes together, you can pass it on to friends or family.Your challenge is to create intriguing and entertaining puzzles on a laser cutter -- within 10 days!Laser cutting brings a new angle to puzzles. The ability to create incredibly intricate detail means puzzles can be as simple or as complex as you like. The traditional jigsaw shape can now be designed with much greater variety and intricacy.Laser surface treatments can be a graphic in nature or a texture. How these are used is essential in the design of your puzzle. Every mark or line on the material becomes a clue on how to put the puzzle together.Puzzles need not be 2D. You could make a 3D puzzle using layers or shapes connected in an interesting way. Think about how multiple pieces can be combined to create an interesting design.Attention to detail, material combinations, connections, production feasibility and quality will be key to making your design stand out.full details

Posted by ewilhelm 10 years ago


Circuit Design Question

Ok, I have a power source that outputs about .5 volts sometimes, but at other times as much as 12 volts. I want the power to illuminate an LED in both cases, without burning it out. I think I need a capacitor for this but I'm not entirely sure? Can anyone tell or lead me to a tutorial or circuit diagram that shows how to do this? Thanks!

Posted by Joe426 11 years ago


Design The Robot Contest - WINNERS ANNOUNCED

Well the time has come, thanks for all the fantastic entries, they were hilarious, really they should all win but i have chosen the top three and i will award the patches1st Place -amakerguy2nd Place -bounty10123rd Place -originalwynneCongratz to all who entered, im sure the robot loved his makeover :D

Posted by =SMART= 9 years ago


Build Custom Robots and Electronics and Design CAD

Here are the services I offer: 1. Custom robotics design and building - price based on product I can design and/or build you the robot you need to have. I have experience with almost every brand of microcontrollers, as well as experience with PC based control. I know how to use many of the popular robotics sensors and also have a very strong mechanical background. 2. Custom electronic board designs - price based on product I can design and/or build a certain electronics circuit board , such as a custom motor driver board or a line following sensor board. The inputs and outputs of these boards can be whatever you want , as I have used almost all forms of interface in my robotics career.3. CAD Design - $25 usually, but subject to change based on product I can make a CAD of your product in either Sketchup ,AutoCAD , or Solidworks, or even all three. Here is an example of my work in CAD : http://sketchup.google.com/3dwarehouse/details?mid=4761deb020b23e8a9494e7acda6a0394Feel free to email me : airman00 at gmail.com,EriceRobots.BlogSpot.com

Posted by Erobots 10 years ago


Jewelry Design App Ideas?

Our group at Autodesk is thinking about making an app to help people design custom jewelry, since the current options are slow, expensive, and hard to use.  If you've made your own jewelry or worked with a pro to have a custom piece made, our summer intern Kristen would love to pick your brain for 15-30 minutes to learn what features would be most useful to you in a jewelry app. If that sounds like fun, just reply here and Kristen will contact you to set up a phone or Skype chat.  Thanks!

Posted by canida 5 years ago