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Everything posted by Turbofrog

  1. I'm modelling some cushions for furniture, and I wondered if anyone knows a quick way to add a little bit of noise (like bunching/wrinkling in the corners) into the geometry so that they don't look quite so uniform and perfect. I've tried doing it with the materials, but it's not quite the same effect. I find that the freeform tool just ends up making stuff look lumpy, since the curves are so flowing (though I have very little practice using it, so it might still end up being my best bet).
  2. Turbofrog

    Cafe Del Mar /plywood Relax Chair

    a ) Bent 3/4" plywood won't splay under a normal person's weight. b ) Who says it's for a commercial environment?
  3. Turbofrog

    Kula (Sphere) Chair

    Wow, I'm impressed by the quick turnaround, and also your willingness to address constructive criticism. The new design is definitely way easier to manufacture, and still has a sleek look. However! I feel like you've gone too far in the opposite direction, and are missing out a few simple and inexpensive processes that could retain a lot of the flair of the original design. The colour/texture contrast was one of the most interesting parts of the original concept, and you could easily keep that by simply adding a layer of white material to the final outside ply of the laminate. And you could keep the black, contoured tub seat with an injection moulded part that would attach to those brackets instead of the new planar design that is less exciting. You can also play with visual tricks on planar curves to make them look like compound curves. For instance, if the outer edge of the main plywood profile was cut with an arc instead of a straight line, it'll look quite interesting when it's bent into a semi-circle. In any case, good progress! How are you enjoying Humber, by the way? (I graduated from there 3 years ago)
  4. Turbofrog

    Kula (Sphere) Chair

    Can you use filled thermoplastics for rotomoulding? I know the Panton chair was prototyped in glass-reinforced polyester, but was subsequently manufacturing of injection-moulded ASA (like ABS). Basically what it comes down to is, this chair will never be inexpensive. But you probably knew that already.
  5. Turbofrog

    Kula (Sphere) Chair

    If you're rotomoulding it, you wouldn't need to do any post-forming process to remove that material, the blue part would simply be another mould (or two that joined at the middle, to accommodate for draft angles). The advantage of rotomoulding is that you can make your mould of many different parts. Downside is that it's less consistent than other plastic forming methods, and your cycle times are way, way slower. Also, you'll need to some generous fillets on the corners or else you'll likely end up with all kinds of webbing or voids, since the legs are fairly long relative to their cross-section. You could maintain the sharp angle by incoroporating that into the design of the tub part that inserts into the main body. In general though, that doesn't doesn't seem to easily lend itself to most manufacturing processes that are either simple or cheap. But hey, thinking about this kind of stuff is at least half the fun of design (or maybe I'm just a huge dork).
  6. Turbofrog

    Trolley Design

    A few things to consider: 1) Not really related to design, as much as presentation, but always make sure you turn on Perspective when you're doing renderings. Isometric views look really unnatural (possibly also where the 'engineer-y looking' comment came from) 2) Am I right in assuming that the internal mechanism in your tubes is a way to lock the the racks once they're in position (i.e. turn the knob and the two pegs lock into matching holes?) If so, it looks like a slightly cumbersome and overly complicated way to go about it. The knob is very round which would make turning it difficult if there's much load on the racks or friction in the system. Maybe make it a flat knob, more like the side one, but solid - this would also make the locked/unlocked position obvious. It also requires the user to make sure they find the right position for the rack to be in so that they can lock the pegs - do they need to hold the rack there, making it a two-handed operation? Could you make it spring-loaded so that the pegs automatically click into the holes when the rack is in the right position, and then they only need to turn the knob to compress the springs again when folding it? 3) There are an awful lot of small moving parts for something that needs to relatively cheap and bulletproof. Can you simplify the mechanisms? Maybe you've already thought about this and just haven't explained it here, but there do seem to be a few little ergonomic, usability, and manufacturing niggles here and there. I do like the attention to detail, though. You're clearly thinking.
  7. Turbofrog

    Attributes Of Sporty Product ?

    HA HA. Nearly wet myself there Buff Ditto for me. In the words of Mike folks - Just Do It! Don't try to analyse it to death. I have no idea what makes a sporty product, as sports are so diverse and in many cases defined by rules and regulations. Very true indeed. Flashy colours and dynamic lines may fit to some products, tear-and-wear issues be of interest for other products only. It's virtually impossible to give an exhaustive and general definition. Would you be able to say what makes a product classy for instance? Why, crisp edges and piano black finish, of course!
  8. Your perspective is off, and the hyper-rendered style makes the cartoonish proportions really pop out. Why don't you hold off on the rendering for now and just post a bunch of line sketches in proper perspective so that you can polish the fundamentals before diving in on the deep end?
  9. Turbofrog

    Illegal Racing

    Clearly you know nothing about modern diesel engines.
  10. Turbofrog

    My Principles Of Car Design.

    Yikes. That seems awfully methodical. I just sketched a lot.
  11. Turbofrog

    The New Apple Ipad

    I'm almost surprised there's no topic about this yet, but what do you guys think of the new iPad? Personally, I'm deeply underwhelmed, and cynically, I really do think Apple has mostly just invented a new niche in order to profit from their devoted fanbase. I'm sure it will be a beautiful device to interact with, but I really can't see who the market is in the real world. 1) You can't do real work on it like a notebook (or even a netbook!) because of the basic OS, lack of multitasking, file management and other functionality 2) It's too clunky to lug around the way you can a smartphone or MP3 player/PMP 3) The battery life and image quality can't compete with a dedicated eInk book reader like the Kindle 4) You can't make art or scribble notes on it the way you can with a tablet PC because of the lack of a Wacom digitizer 5) Despite the emphasis on games, the processor and game library is badly outclassed by big-budget dedicated development on consoles or PCs I suppose if you're really hurting for something to passively consume media or leave around the house to check e-mail or basic internet browsing it serves a purpose as a pricey, stylish entertainment device. I do, however, suspect that because Apple is such a marketing juggernaut, it will be successful anyway, and the sheer volume of adopters will probably result in at least a few interesting apps that can take advantage of its peculiar functionality. Oh well. Maybe the 2nd generation will be useful. It's just such a shame that there still isn't really a better tool for creative professionals on the market than my 5-year old Toshiba tablet PC...
  12. Turbofrog

    A Full Hubless Bicycle

    I take it some of those details are: how on earth to make a practical hubless wheel? It recently took a team of Yale mechancial engineering students to make one that actually works, and it's neither light, nor efficient, nor practical. Very cool that you actually prototyped your frame, though. If you can make it work, you'll have yourself a pretty nifty custom bike.
  13. Turbofrog

    Mclaren Perfume Bottle Design

    To be honest, neither the form nor the renderings are especially appealing. Did you do any sketches first, or was this just a chance to get your feet wet in Solidworks? Also, even with no other changes, your renderings will instantly be much better by turning on perspective. Really, really important.
  14. I moved downtown, got a rewarding full-time job, lived it up for the summer and fall, then took off for 7 months to backpack in East Africa, Southeast Asia, and British Columbia before moving back home and picking up where I left off. Worked out pretty well...
  15. Turbofrog

    Gm En-v Concept's

    Personally, I like the idea. But maybe that's not surprising, since I designed something shockingly similar 3 years ago, hahaha.
  16. Turbofrog

    Final Year Project

    It really helps if it's something you're passionate about, too. If you don't love your thesis, you're going to hate your life when you're spending 26 hour days working on it. And largely I agree with Cyberdemon - your project will be much more compelling if you're dealing with a market pull. There are a lot of amazing technologies waiting for the perfect problem. Better off identifying the problem and finding the appropriate technology.
  17. Personally, I would trawl the used tablet PC market on eBay. About 3 years ago I bought a Toshiba R15 for ~$600 USD, and while it no longer works on battery power, it's been a fantastic tool. It's my only laptop, so I appreciate the portable form factor, but if you're primarily looking for a tool for sketching on the go, the Motion LE1700 slate tablet is probably your best bet. Compact (high quality 12.1" screen) and light, but it has a modern processor (Core 2 Duo). It won't be super fast, but for sketching it should be more than adequate.
  18. Turbofrog

    Sub-seat Bike Bag Project

    May be a bit tricky to get it to fit all saddles, but I like the features you've included...they all make sense to integrate into a saddle bag. Personally, I think the form is a little bit fussy for such a small object that will need to cooperate with a wide variety of bike styles; I prefer the smoother side cuts on your physical mock-up. Where do the batteries go for the light, and are they replaceable?
  19. I'll also comment on the window design, since I think the current one lets it down a lot. Besides the previous comments (which I agree with), I also think that you need to consider what happens when you project a flat shape onto a curved form. In this case, the window's bottom cutline is horizontal, but you'll notice that because the fuselage is round, when you look at it from different angles in perspective, it appears curved. You can compensate for this by tweaking the shape a bit to counteract that effect and make it look a bit more aggressive at the same time. Combined with the generously rounded corners, it appears sort of blob-like, as if you aren't really in control of what it's doing. (My comments here are restricted to the aesthetic, since I'll treat this as a styling exercise. From a real-world perspective, frankly I find the idea of a 4-person private jet kind of repugnant - I can't really think of a less efficient way to get from A to B...)
  20. Not sure if people at cafes will enjoy the aesthetic of such heavily processed coffee products, but it's an interesting idea. As far as the mug design, I might design it so that the cup tapers upwards towards the circular mouth. Right now the opening is smaller than the base, which might make it more difficult to just throw in 4 cubes and have them fit properly.
  21. Turbofrog

    Fiat 500 - Next Generation

    Interesting style. I actually quite like it - it retains familiar proportions while pushing the boundary a bit and incorporating interesting detailing. I think your perspective may be off in a few of the images, but the main problem is the composition. You way you have the images just sort of jumbled on the page - while angled up and down and around - distracts from the drawings. Play with size and alignment - try and fill up more of the white space, while making one image more dominant...it'll draw the eye along and improve visual interest, so the sketches will read better.
  22. So do you need to twist your legs in order to steer, then? It seems as if, given the steering axis and the position of the cranks, it might be difficult. That's also a practically flat rate on the steering axis...not sure how that geometry would affect handling. Does the CVT in the front freewheel, or is it fixed? If it freewheels, you probably want a brake in the front, and if it's fixed...well, I'm not sure I'd want it fixed, given the leisurely style and market you're reaching out to. As far as looks go, it's a simple and clean enough shape, but there's not a whole lot of flare to it - it's just a symmetrical arc, no? There's nothing wrong with it, per se, it's just not as exciting as it maybe could be. Is it steel or aluminium construction? I'd say it's a well executed project, but it comes across as more "engineered" than "designed." I hate to express it in those terms, since the two are so closely related, but do you get what I'm trying to express? Your sketches had a lot more drama to them, and it seems to have been lost in the translation in to CAD (which is really easy to have happen, believe me). Live and learn, all you can do is move forward.
  23. Turbofrog

    Zhum Transportation Design

    What about the Lotus Esprit? (come to think of it, his Lamborghini concept looks a little bit like a modernized Esprit, albeit without Lotus' current organic theme)
  24. Turbofrog

    Nike Bicycle

    I should also mention that you never see bikes with solid aero front wheels, and with good reason. Since the front steers, a solid wheel becomes very sensitive to cross-winds, and would probably lead to some scary handling. Even just in terms of forward motion - as soon as you turned the wheel, the air might catch it, and tend to turn the wheel even more (especially since your pivot point is not in the center of the wheel, as on a normal hubbed bike). If it seems like I'm trying to get you down, I'm not. I'm just trying to help you think through some of the issues involved in design. Bicycles are almost undeniably the most highly evolved vehicles on the planet, so there's a lot that needs thinking about before you re-invent the wheel, as it were.
  25. Turbofrog

    Nike Bicycle

    Eek. As a guy who's passion for automobiles has recently been replaced by bicycles, this design makes me a little bit sad. I understand that it's just a styling exercise, but even so, you should think about why you've included the various elements. For instance - the geared rim/drivetrain. Why? You might be able to get the appropriate rigidity from a solid aero-wheel as you have done, but there's really no benefit to it except to look different. And for people who are really into bikes, looking different for the sake of looking different is rarely cool. If you want to have a more aerodynamic look than a standard derailleur/drive chain, why not a drive shaft, a la Biomega? http://www.biomega.dk/biomega.aspx And those cranks - what's the advantage of having a hole in the center and the offset crank arms? Strength, aerodynamics, weight, and mechanical efficiency would all suffer (since you have to have a whole lot more bearings). The proportions and geometry are definitely different, but that's neither here nor there - is there a reason for it, or is it just to make it look more stretched out? if you want to make it more stretched out, that's cool, but why not move the cranks back so that the rider could be in a more sleek, aero, semi-prone position, maybe? And what do the protruding spears on either end of the top tube look like in 3D? And are they just to make it look cool? If you want some interesting aero-styled bikes, check out Cervelos. They have some pretty neat style, and have nicer proportions. My recommendation would be to take a standard bike footprint and stylize it from there. It'll make the whole thing look much more believable. I'm guessing it's a track bike which is why there are no brakes, but you could have cool disc brakes if you wanted to keep pushing the stylistic envelope without going for the norm. From a purely aesthetics point of view, there's a weird relationship between your super-thin forks and crank arms, and the rest of your components, which I'm guessing have dramatic oval-cross sections, as on other carbon bikes. Your rendering also looks very flat. It could use some shiny areas (have you seen the Scott Robertson bike rendering tutorial?) to make it look more 3D and pop out from the page a bit. The background does not contrast enough with the bike itself, so the whole thing looks very subdued. I like that you're trying different things, and it's a good exercise, but try and think about the issues involved in actually designing something, instead of just making a pretty picture. It's what separates industrial design from entertainment design - and even then, good entertainment design still looks realistic, it's just really out there.

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