spitNL Posted November 16, 2009 Share Posted November 16, 2009 John, no need to send it, I've got an original Dutch WSM with the same picture. Problem with this picture is a lot of the dimensions are referenced to bolt holes. I don't need bolt holes, I need beam dimensions. Thanks Reinald, but buying a chassis just to take dimensions is a bit much. Frederick Link to comment Share on other sites More sharing options...
JohnD Posted November 16, 2009 Share Posted November 16, 2009 Ah, so! Can't help - I only have Vitesse/Herald chassis. probably just the same but I'm sure you can get real Spitfire data here. JOhn Link to comment Share on other sites More sharing options...
gt5r Posted November 16, 2009 Share Posted November 16, 2009 ........... but I'm sure you can get real Spitfire data here. JOhn Oh yes - the iconic Spitfire Frederick - if you can get it to handle like that one you will make a 100000 eur http://mccoy.nu/spitfire_mkIIa.jpg Serious though - got full blown 3d CAD packages at work - thinking about it could get the chassis lazer scaned and built into a 3D model - humm!!!! Link to comment Share on other sites More sharing options...
spitNL Posted November 16, 2009 Share Posted November 16, 2009 I thought only the outriggers were different on the Vitesse/Herald chassis? Serious though - got full blown 3d CAD packages at work - thinking about it could get the chassis lazer scaned and built into a 3D model - humm!!!! WoW! Big enough to scan an entire chassis?! You would still have a lot of work afterward I think, making every part hollow. Frederick Link to comment Share on other sites More sharing options...
oviwan Posted November 17, 2009 Share Posted November 17, 2009 i have a mkII chassis here, it's prepared for rotoflex and in a very good condition. it's in my friends workshop = dry & heated & illuminated. if you like to do your measurements and between cologne and düsseldorf is not too far, just drop me note. harry Link to comment Share on other sites More sharing options...
spitNL Posted November 17, 2009 Share Posted November 17, 2009 Just spend a few hours working on the chassis drawing, so here are the first details: Does anyone know what gauge the chassis is? My guess is 0.040". F. Link to comment Share on other sites More sharing options...
RK Posted November 17, 2009 Share Posted November 17, 2009 You don't need very expensive stuff for the laser scanning. Check out http://www.david-laserscanner.com/ But getting a mesh scanned is just half of the story :-) cheers, Reinald Link to comment Share on other sites More sharing options...
spitNL Posted November 17, 2009 Share Posted November 17, 2009 Thats's interesting Reinald, didn't know you could do that with a web cam. Someone even scanned motorbike with it. Frederick Link to comment Share on other sites More sharing options...
RK Posted November 17, 2009 Share Posted November 17, 2009 yes, it is basically no problem to scale it up. Just need a stronger laser to provide a good line quite interesting, I played a little bit with it on smaller scale... Reinald Link to comment Share on other sites More sharing options...
JohnD Posted November 17, 2009 Share Posted November 17, 2009 Guys, I've got one of those 'spirit level' lasers - would that be strong enough to scan a whole car? But please educate me. What can you do with the images? I'm not that interested in CAD of the establised design, chassi or body, but I've long wanted to get aerodynamic data on a Triumph, and to look at aero mods. A well known company called CHAM sells a CFD program called Phoenics, an early version of which is available as shareware. Ages ago I looked at using this, and even attended a seminar at CHAM, but they advised me then that inputting the mesh by hand might take, "Ooooh, two, three weeks? Maybe more!" I never did it. The 'David' program does small objects (the motorbike was a model). Could it scan a whole car, or else could small pics be stitched together? And could it generate an appropriate CFD mesh? John Link to comment Share on other sites More sharing options...
mattius Posted November 17, 2009 Share Posted November 17, 2009 great work fredrick, if you ever get it finished can i have a copy of the file? want to design a bespoke cage for a bespoke racer from scratch. Link to comment Share on other sites More sharing options...
RK Posted November 17, 2009 Share Posted November 17, 2009 Well, you could easily try it out if that kind of line laser is strong enough :-). You need to consider that you would need a reference plane that is probably 6 by 2.5 meters to get a proper coverage. If you still can get a proper line with enough contrast in your webcam it should be alright. It might be easier to do it in low light conditions, i.e. at night. give it a try! Reinald Link to comment Share on other sites More sharing options...
spitNL Posted November 19, 2009 Share Posted November 19, 2009 You don't need very expensive stuff for the laser scanning. Check out http://www.david-laserscanner.com/ But getting a mesh scanned is just half of the story :-) cheers, Reinald You know what that might be perfect for, scanning a port mould. You could then flow them with a CFD program. Frederick Link to comment Share on other sites More sharing options...
RK Posted November 19, 2009 Share Posted November 19, 2009 nice one. you need to add the combustion chamber. and some valves. And then you could virtually flow them but actually, since that is pretty simple and a flowbench already adds quite a lot of information for cylinderhead tuning, I would consider doing a CFD of the Spitfire as a lot more interesting and maybe more rewarding, even though in classic racing we are really limited in what we can do with the bodywork. I need to get some CFD software... Reinald Link to comment Share on other sites More sharing options...
spitNL Posted November 19, 2009 Share Posted November 19, 2009 Why don't you scan of of these then. Would give you a good starting point and much easier than scanning full scale. Triumph Spitfire 1:18 from Chrono. Link to comment Share on other sites More sharing options...
mattius Posted November 19, 2009 Share Posted November 19, 2009 i actually might give that a bash, got one of those models sat on my desk. just need a laser. Link to comment Share on other sites More sharing options...
RK Posted November 19, 2009 Share Posted November 19, 2009 I will do that. Definitely. I don't know how precise it is scaled, but it should be a starting point. I bought this http://cgi.ebay.de/LinienLaser-Richtlaser-Lasermaus-Ecoline-EL-166_W0QQitemZ380158952867QQcmdZViewItem Lasermouse, comes in handy sometimes for other purposes as well. Reinald Link to comment Share on other sites More sharing options...
rlubikey Posted November 19, 2009 Share Posted November 19, 2009 Reinald - You need something that produces a line or "curtain" of laser light, not a point :¬( Richard Link to comment Share on other sites More sharing options...
RK Posted November 19, 2009 Share Posted November 19, 2009 yes, and it does exactly that :-) since I have it already and scanned some mobile phone, I know that it works... cheers, Reinald Link to comment Share on other sites More sharing options...
James Posted November 19, 2009 Share Posted November 19, 2009 I have been playing around with infrared light for a touchscreen project. You can buy infrared lasers - that coupled with a filter on a camera (webcam) to block out everything but that wavelength means you get rid of lots of useless data. Could be interesting. Link to comment Share on other sites More sharing options...
mattius Posted November 19, 2009 Share Posted November 19, 2009 i tried it, got hee haw, took me 2 hours to get the camera set up, then when scanning just got the top of the wing of the car round. Link to comment Share on other sites More sharing options...
spitNL Posted November 19, 2009 Share Posted November 19, 2009 Too bad Matt :-/ Link to comment Share on other sites More sharing options...
JohnD Posted November 20, 2009 Share Posted November 20, 2009 Brilliant, Fred! Thnaks! John Link to comment Share on other sites More sharing options...
gt5r Posted November 20, 2009 Share Posted November 20, 2009 I was thiking of using this - got access to one of these at work - use the results on 3D CAD systems to model sufaces so should be able to build a comprehensive 3D model of the chassis http://www.avatech.com/documents/solutions/infrastructure/Scanstation_C10_Brochure.pdf Link to comment Share on other sites More sharing options...
RK Posted November 20, 2009 Share Posted November 20, 2009 if you can use that -- brilliant but it is somehow the difference between a 2-figure DIY solution, a 3-figure cheapo solution and a 5-figure (if that is enough) pro-solution ! I think I will get some chalk-spray to get the black model better scannable, and get started. I've seen some advertisements in the UK racing business that offer scanning of cars as a service, so you'll get the result of 5-figure pro-equipment probably for a 4-figure number.... Reinald Link to comment Share on other sites More sharing options...
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