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Written by HzR
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Saturday, 04 April 2009 11:23 |
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The last week I found out about two school projects engineering model cars. First, through Twitter, I found out about a high school who are building a gas engine powered 1:4 scale car from scratch as an educational project. They are just in the concept stages and getting information together. For the virtual design they will use Autodesk Inventor. They are looking for help on several issues, so have a look at their site and see if you can give them some tips!
Just a couple of days later I read a magazine article about a project in the UK to get high school students interested in engineering. CAD software company PTC and slot racing brand Scalextric put together a competition where students can design a slot car in Pro Engineer CAD software, build it, and then race it against other schools for a prize. Called Scalextric for Schools it is supported and promoted by Top Gear presenter James May. Schools can get a free software license for the project and parts are available at a discount from Scalextric. 3D-Models of the standard parts (motor, wheels) are available for download to cut down on construction time. The lay-out of the track is known, so you can rebuild it to test your car and compare times with other competitors. This initiative is a great and inexpensive way for students to get into the complete construction of a racing car. The cars are fairly simple in lay-out, but you have to come up with some good solutions to get the best performance from the chassis. Maybe some other companies can up this a bit and start an rc car construction competition for schools as a follow up series? While writing about student engineering, I can't leave out the world wide racing series for students, Formula Student. It's also not rc, but a great way to get into racing and get some job experience. The winner is not just the team who finishes first. A whole range of subjects are rated, from the cars performance to how the team is managed to aquiring sponsors and engineering solutions. If you're studying engineering in some way and are interested in car racing, definately have a look at this series! It looks like there is still a lot of interest from students to get into engineering, and companies who are willing to promote this even further. Who knows what great creations will come out of this in the future! |
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Written by HzR
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Monday, 09 February 2009 14:25 |
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This week the worlds largest Toy Fair is held Nurnberg, Germany. A lot of companies introduce new products at the show. Since I had to go there for some non rc related business and it is only 1,5 hours drive from Munich, I decided to take the oppertunity to check out the rc stands as well.
Definitely the biggest new trends were the CORR-style trucks like the Traxxas Slash and 1:8th scale cars with lipo/brushless electric power. Just about every brand has at least one of the CORR-trucks now, and they come in all shapes and sizes. Gas and electric, 1:8th scale down to 1:16th with the new Traxxas Slash XLS, which looked really trick with cantilever shocks. I think a group of these cars would make some great indoor winter racing! 1:8th electric versions were all around; Associated, Losi, LRP. From now on also not limited to off-road anymore. French company DXF Competition showed an electric 1:8th on-road car. Looks like electric is the wave of the future, although there will always be a group of people who love the smell of nitro of course! Also new from a couple of manufacturers are the 1:10th scale pan chassis touring cars of which a lot of people have high hopes. I'm not sure this class will help the racing community. A couple of people at the show already mentioned the racing scene is dying. There seems to be a big shift towards the hobby type trucks etc. which you can also see by the number of RTR kits on offer. A new racing class will only split up the already deminishing racing community. 1:12th scale pan cars are very similar and already established. Why kill off two existing catagories to start a new one where everybody has to invest in first? The future will tell. For a full gallery of all the pictures I took at the show, follow this link. |
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Written by HzR
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Wednesday, 28 January 2009 21:54 |
Finally there is an official word on the Russian touring car I reported on a while ago. Pictures appeared on the internet for the last 2 years or so, and showed a really redical looking car. From the pictures it was hard to figure out any details though and information was scarce. Now the first official CAD images of the car designed by Oleg Babich have been unveiled on the website from the company that will be producing the car, Awesomatix. The motor drives the longitudal drive shaft directly through a bevel gear assembly which hasn't been seen before on a production touring car. The biggest innovation however is the suspension. The upper suspension has a lot of resembance to a 1:12th scale front set-up. The lower arms are milled out of carbon sheet and pivots on balls instead of hinge pins. This car doesn't have the usual coil-over shocks, but some rotary shock system with torsional springs wrapped around them. The whole shock assembly is really small and can be fitted right on the chassis for a very low center of gravity. According to the site they offer a full range of adjustments. This setup looks very exotic, but from the released images you can't really tell how it all works. We'll have to wait till the first cars hit the market I guess! I totally love the looks and innovative features of this car and can't wait to have a closer look! With the current trend towards brushless motors and lipo batteries I think this could spark a whole new wave of touring car evolution. I'm looking forward to what's coming! |
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Written by HzR
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Monday, 12 January 2009 00:00 |
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I recently visited the EuroMold trade show in Frankfurt, Germany. This show features products an services for product development, from capturing the first idea, construction and simulation software tools, rapid prototyping, tool construction through to injection molding machines for actual production. The things I was most impressive by on the show were the 5-axis mills and the 3D-printers. The mills create very complex shapes from metal blocks at an amazing speed, just fascinating to watch. The technology of 3D-printers has come a long way the last couple of years. Just like colour printers have seperate resevoirs, 3D-printers can now create parts from different materials. You can now put a lot of different functions in one part without any assembly, very cool stuff! Some other products that I came across and found very interesting: A company called Protomold can machine one-off parts from plastics. They also make injection molded parts for small series at relatively low cost. At €1700 and up, it's too expensive for hobbyists, but if you think you can find about a 100 people who would also need such a part, it can become a very viable option. Therefore also very interesting for open source hardware projects in my opinion. Moldware showed off an iPhone application for viewing your Catia 3D-data. I was given a short demonstration of the viewer. It loaded quite big models pretty fast and was really snappy once the parts were on screen. You can rotate the parts any way you like and zoom in and out just like you would with images on the iPhone. They told me they are looking at developing versions for other operating systems like Windows Mobile or Blackberry. The next version will also be able to measure didtances between parts. Looks like a very cool product for people on the go. The product is mentioned on their website, but I couldn't find a download link or buy option. It's also not in the iTunes app-store at the moment of writing, so I presume it will come out soon. Converting real life parts into virtual data is not always easy. There are now cheap 3D scanning possibilities, but the product that showed an interesting development was RhinoPhoto. It is a plug-in for a 3D software tool called Rhino. You put special stickers (targets) on strategic locations on the object you want to digitize. You then take several pictures of the object from different directions. Upload the pictures into the RhinoPhoto tool, and it calculates the 3D coordinates of the points and creates surfaces through the points! It was a pretty amazing demo to watch. Just the plug-in costs €900, so it is still aimed at professionals, but expect to see this kind of technology available for a lot less in a couple of years. All in all there is a lot happening in the rapid prototyping arena. Technology improves at an amazing speed and prices drop, so it might not be all that long beforeyou have a 3D printer sitting on your desk for a couple of hundred bucks. If you're interested in visiting the show, have a look on their website. This year it will be held from the 2nd till the 5th of December. |
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Blog
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Written by HzR
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Thursday, 01 January 2009 12:01 |
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Open Source RC wishes everyone a happy, healthy, inspired and creative 2009!!! |
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