piranha230 Posted July 9, 2016 Share Posted July 9, 2016 I am posting this to try to find a good 3d print designer who can either alter my existing cad drawing's, and or alter my stl file's, I have had all them sent to me on dropbox, but I do not wish to use the company that created them as it took them far too long. I need to find someone who can work from photograph's and capture complex curves. The cad drawings and stl file's I have need some alteration's doing as they have got some of the curves and other details wrong, the cad drawing's show the measurement's of the part's in 4mm scale. Link to post Share on other sites More sharing options...
RMweb Gold SHMD Posted July 9, 2016 RMweb Gold Share Posted July 9, 2016 Don't look at me as I can't even see in 3D! However, if you post some examples you may pique some ones interest. Kev. Link to post Share on other sites More sharing options...
piranha230 Posted July 9, 2016 Author Share Posted July 9, 2016 I need the oo gauge class 442 cab end and skirt altering. Link to post Share on other sites More sharing options...
RMweb Gold SHMD Posted July 9, 2016 RMweb Gold Share Posted July 9, 2016 Hi, I didn't know whether to 'like' that last post or not, due to your previous post not expressing disapproval of the shape. (I am totally unfamiliar with this prototype and so can not comment except to say that (maybe) the roof is not right?) But it does show great initiative on your part. One thing to remember, is to show these 3D renditions from the point of view of an observer on a platform. That is the most common view one sees trains from. Kev. (At least my replies are allowing other, more knowledgeable members, to come across this thread...) Link to post Share on other sites More sharing options...
piranha230 Posted July 9, 2016 Author Share Posted July 9, 2016 Hi, It is mainly the front part of the curvature of the roof that needs altering, but have noticed a few other thing's that need doing too. Link to post Share on other sites More sharing options...
The Nth Degree Posted July 9, 2016 Share Posted July 9, 2016 May I ask who did them for you? You can reply by message if you prefer. Link to post Share on other sites More sharing options...
piranha230 Posted July 9, 2016 Author Share Posted July 9, 2016 pm message sent. Link to post Share on other sites More sharing options...
Mike G Posted July 10, 2016 Share Posted July 10, 2016 I am posting this to try to find a good 3d print designer who can either alter my existing cad drawing's, and or alter my stl file's, I have had all them sent to me on dropbox, but I do not wish to use the company that created them as it took them far too long. I need to find someone who can work from photograph's and capture complex curves. The cad drawings and stl file's I have need some alteration's doing as they have got some of the curves and other details wrong, the cad drawing's show the measurement's of the part's in 4mm scale. Try contacting Justin Newitt: http://website.rumneymodels.co.uk/commissions regards Mike Link to post Share on other sites More sharing options...
piranha230 Posted July 10, 2016 Author Share Posted July 10, 2016 Thanks Mike, will do. Link to post Share on other sites More sharing options...
billbedford Posted July 11, 2016 Share Posted July 11, 2016 This is just the sort of job I would want to see the quality of the information before I would even think about quoting. Without scans or works drawings the out come is going to depend on how the various people involved interpret photographs, and that is never going to produce an easy producer-client relationship. Link to post Share on other sites More sharing options...
Gt.Shefford Posted July 11, 2016 Share Posted July 11, 2016 Could you tell us what CAD package was used to create the part files, looking at the rendering my guess is Solidworks? Jonathan Link to post Share on other sites More sharing options...
piranha230 Posted July 11, 2016 Author Share Posted July 11, 2016 I have been told by another designer it was done on Solidworks , but I have not asked the firm who did it for me yet. I have been told better results could of been done with Blender, or the software 3d rail simulator designers use. Link to post Share on other sites More sharing options...
rue_d_etropal Posted July 12, 2016 Share Posted July 12, 2016 those type of complex curves on roofs are never easy. I compromised on my own designs by assuming I would have to finish it off. Did not worry me at the time. To scatchbuild would have been even more difficult. I am sure there are formulae I could enter to get correct profile but I wanted to get designs done. As mentioned above, you need to start with good drawings, even then there is a bit of fiddling to get curves looking ok. In fact looking OK is most important thing. I do wonder if some real stuff is actually designed, or done by trial and error. Interesting to compare roof profile of a 2Bil with a 2Hsal. The 2Bil is what one would expect to see, but the 2Hal looks like a simple cut at 90 degrees, and a hard line at the 45 degree joint. Obviously not done on a computer, but is interesting by its simplicity. Just found this thread here, which has a rough drawing. Shows the classic problem of the curve changing as it turns the 90 degrees, with added extra of a sloping cab front. I would expect it as possible to work out the formula for the changing curve, not sure if it is possible with the software mentioned. I use Alibre (Design Works) which is more mathematical in its approach , but I have got got far enough to understand the complex tools required yet http://www.rmweb.co.uk/community/index.php?/topic/40949-class-442-and-class-377/. Link to post Share on other sites More sharing options...
Gt.Shefford Posted July 12, 2016 Share Posted July 12, 2016 Was the rendering one that the designers provided? Might be worth downloading eDrawing viewer from Solidworks ( https://www.solidworks.com/sw/support/edrawings/e2_register.htm ) and looking at the part files from multiple angles to determine all the areas which require modifying. Jonathan Link to post Share on other sites More sharing options...
piranha230 Posted July 13, 2016 Author Share Posted July 13, 2016 Hi, Yes the designers provided all the renders, cad drawings and 3d stl file's. Link to post Share on other sites More sharing options...
billbedford Posted July 14, 2016 Share Posted July 14, 2016 Yes, but what did you provide for him to work from? Link to post Share on other sites More sharing options...
piranha230 Posted July 14, 2016 Author Share Posted July 14, 2016 The designer was working from a Hornby scale length mk3 to get the coach profile and size correct, and lot's of photographs from google images and flickr, unfortunately I was unable to find any accurate drawings for the class 442 for him to work with. Link to post Share on other sites More sharing options...
Gt.Shefford Posted July 14, 2016 Share Posted July 14, 2016 Was the rendering one that the designers provided? Might be worth downloading eDrawing viewer from Solidworks ( https://www.solidworks.com/sw/support/edrawings/e2_register.htm ) and looking at the part files from multiple angles to determine all the areas which require modifying. Jonathan Hi, Yes the designers provided all the renders, cad drawings and 3d stl file's. Sorry should have been clearer. I was meaning that if you view the .sldprt or .sldasm file using the solidworks viewer it might help to understand whether the shape issues are really there or if its actually a product of the way the environment/material is rendered on the object - might be worth getting the designer is apply a zebra pattern to the model as this will greatly help analyse the surface contours Jonathan Link to post Share on other sites More sharing options...
Rabs Posted July 21, 2016 Share Posted July 21, 2016 If you haven't found a solution yet then I'd be able to help. I've got solidworks, so if you can get the original solidworks files from the company you worked with I can take a look at the model and the photos and give you a quote. PM me if that's of interest. Link to post Share on other sites More sharing options...
piranha230 Posted July 22, 2016 Author Share Posted July 22, 2016 Private message sent. Link to post Share on other sites More sharing options...
Recommended Posts
Archived
This topic is now archived and is closed to further replies.