I'm thinking about making an isntructable on how to unicycle, but don't want to waste my time if you guys wouldn't be interested...opinions?
Topic by Weissensteinburg | last reply
Hey everyone, I need some help for my project paper. I want to build a self-balancing "one wheel". But I dont know where I can buy a wheel hub motor. I searched on Alibaba and found some fitting ones. A 800W 48V DC Brushless (Wheel Hub-) Motor. But i don´t know which speed motor control is the best for this type of motor. I want to use an arduino uno ! Can someone please Help me finding a motor control ? Thanks a lot :) PS: Sorry for my bad english :) I am german
Topic by Lucafaeth
I bought a unicycle off craigslist and I was riding it around. my foot slipped off the pedal, leading to a fairly nasty crash (I landed on my feet, the unicycle was the nasty part). when I picked it up, the crank was off by about ten degrees. I couldn't find any instructions on how to fix such an issue, so I just figured that if I hit it into that position I could just hit it back. I smacked it with a rubber mallet a bunch and it eventually made its way back to the right position. I'm now wondering why it was possible to just smack it to where it needed to be (seeing as I doubt a unicycle would have any pressure-fitted parts, especially since it's a sun unicycle AKA legit), and what the correct way (if this isn't the correct way) to fix it would have been. oh, and if it helps, the crank on the unicycle was also crooked before I hit it, as in the inner surface of the crank wasn't parallel to the tire until I put it back. (sorry this is in the bikes channel, I guess the instructables sorting system isn't that diverse yet. I kid, I kid.)
Question by codongolev | last reply
I'm starting to plan a self-balancing unicycle and I notice several people that have built them are using 450-500W motors. I'd like to use something a bit more robust, like 750W @ 24v, due to terrain. I'm wondering if that's too much and if the guys that are using 500W are happy with the results? Has anybody tracked their current (amps) usage? My guess is that unless you're going full speed and uphill you'll rarely hit full wattage on your motor except for temporary instances. One of the challenges I'm finding is that there are motor drivers up to 25A at 24v or 36v that can handle a bit of surge, but then it takes a huge leap to 160A and 400A surge. I don't think I need something that large and expensive, but my electric motor experience is limited. Could some of you more experienced guys chime in with a bit of advice? Thanks, Gyv
Topic by Gyvven
Hey guys, I've never really done any crafts so im not sure how to go about doing this so i figured id bring it up here. I know i'm 8 months early but I wanted to get started now, on a project for halloween. I randomly decided a few weeks ago i was visited by never good "good idea fairy" and i listened when i was told to by a unicycle by my awesome mind. Then I started riding it, realizing that i could probably get pretty decent at it pretty quickly. Then someone talked about halloween and I was thinking about what would be off the wall so i immediately though of the unicycle. Here, my mind went to steampunk, then it went to looking like abe lincoln while riding a unicycle. Then I realized that my boring chrome painted unicycle would hardly look Victorian, and that it would need a facelift. LONG STORY SHORT: My issue is that I would like to spray paint it a brassy colour, and not ruin the unicycle. I just got back from the craft store, where they told me that my idea of wrapping saran wrap tightly around it would not work because the paint would just run off. They suggested wrapping canvas around it, but when they showed me the cost of canvas i let out a faint hearted laugh and said what if i were to wrap it in a paper or construction paper type material and paint that, but they turned that down because of the appearance it would give. But again, it is halloween and it wont be all that light out so I dont really see a huge requirement for detail. Is there any way you guys could think of that will not ruin the unicycle?
Topic by snipesnipe | last reply
I want to get headphones with a mic, a mic adapter, headset, or whatever for my iPod Touch. It's generation is Late 2009, 8gb. Thanks.
Question by MegaMaker | last reply
I am looking for an old bicycle for a project I am working on. Preferably fixed gear, but I would take multi-speed also. I am planning to make a unicycle that would be better for commuting. The one I have now is only a 20 inch wheel and I am looking for anything bigger than that, maybe 24 or 26. Let me know if you are interested in contributing a bicycle to my project. Thanks.
Topic by rschack | last reply
Last week a company called Davison was running targeted ads on Instructables through Google Adsense. Google Adsense typically places contextual-based ads on sites making connections between advertisers and publishers based on their search technology. However, advertisers can also work with Google to directly placed ads on specific sites. At first, we were flattered that Davison chose to target us, and further flattered that they were actually using our terminology in their ads. You may have seen "Cool Instructable?" or "Have an Instructable?" text ads running in our right sidebar.After checking out what Davison does, I decided they weren't a good fit with us and removed the ads. Normally, this would be no big deal, but because of the business Davison is in and the specifics of this case, I wanted to share my thinking.Davison solicits ideas from independent inventors, creates prototypes, markets potential products to manufacturers and distributors, and collects royalties. This is not worlds different from what we did at Squid Labs, except I would characterize Squid's activities as more technical and with the aim of creating sustainable businesses rather than exclusively creating products to be licensed.The rub comes in that Davison is not forthcoming with how they actually make money: high fees paid by the independent inventors. Here's a Forbes article that goes into greater depth, but for me, the important statistic is this: 37,000 or so people have contracted Davison Design's services in the last five years; but only eight of those who have signed up have realized royalties exceeding their fees to Davison.A 0.02% success rate is just awful, and clearly shows that they are preying upon people who don't know any better.The thing that personally put me over the edge was a section from their Questions and Myths:9. Can I tell people about my idea? We recommend that you do not publicly disclose your invention/idea to anyone (not even a friend or a family member), unless you have confidential documents in place to verify that you are the originator of the invention.Obviously, I have a conflict of interest, because I want you to share your initial ideas here in the forums and how you built your ideas into prototypes as Instructables to help me grow the site; however, the concept of absolute secrecy is anathema to me. Here at Squid Labs, we know of no one that has had their invention stolen by some big corporation (more on this at Saul's column in Makezine Vol. 9; full text available as an attached PDF, kindly permitted by Make). My experience has uniformly been that sharing yields stronger results than hiding. The person you share your ideas with might turn into a business partner and be instrumental in your shared success.Clearly there's demand for services to help inventors. Davison seems to have a nice facility at Invention Land; instead, why don't they invite the almost 8000 people per year that contact them to attend an "invention boot camp?" Attendees could learn some basic design, CAD, and machining skills, give mock presentations, and learn how to do a preliminary patent search. If Davison was doing a good job, they would start to see some success from their graduates, and companies looking for innovation would seek out the graduates or ask to attend the camp's final design reviews.Teaching people all these skills might sound impossible - like a full undergraduate and graduate series of degrees compressed into an 80-hour crash course. No course can cover everything- instead, it should give motivated people the basic skills and confidence to start doing it themselves, and teach them how to seek out the additional knowledge they need. It's surprising what motivated people can accomplish if you just get them started.In 2002 Saul and I taught a one-week class called Cyclomerisation where we taught a group of 12 people just enough bicycle design, CAD, and manufacturing to make them dangerous. Each person then designed their own custom bicycle using 8020 extruded aluminum and jet-machined connectors. We had telescoping unicycles, recumbent tricycles, and plenty of standard bikes; for example, check out Saul's 8020 Chopper. Half the participants were MIT students, half were not, and it made no difference -- everyone was motivated to learn something new and to put it into practice.If this idea isn't Davison's thing, then maybe I've found a project to work on after Instructables can run itself. In the meantime, I'm sharing the idea with all of you, because that's the best way to vet it, see if it has legs, and make it stronger.More pictures from Cyclomerisation here and here.
Topic by ewilhelm | last reply