SunnyBoy Posted June 23, 2012 Report Share Posted June 23, 2012 Hi all, I thought it might be a cool idea to start a CAD thread for any designers or engineers on here that want to post any bike related part designs they've modelled for feedback and advice. I've been messing about with a few ideas for bits and bobs on SolidWorks just for practice sake, so it'd be nice to see what others on here have come up with. Anyone interested? Jack Quote Link to comment Share on other sites More sharing options...
Pete.M Posted June 23, 2012 Report Share Posted June 23, 2012 Good idea. I don't have any parts in mind but I do intend to make something over summer, just for practice sake. Quote Link to comment Share on other sites More sharing options...
SunnyBoy Posted June 23, 2012 Author Report Share Posted June 23, 2012 (edited) I've just whipped up a quick brake booster to get things going, not the most aesthetically pleasing piece of work but it'd do the trick . http://img7.imageshack.us/img7/8868/brakebooster.jpg I'm in the process of knocking up a stock frame but the CNC'd dropouts are giving me some trouble.... it's a pain not having anything to physically measure. Any suggestions about features that could be added? Jack Edited June 23, 2012 by SunnyBoy Quote Link to comment Share on other sites More sharing options...
craciunptr Posted July 9, 2012 Report Share Posted July 9, 2012 yeah i'm interested i am playing with rhino and such. how is solid works ? i'm studying modelmaking at aucb. i was planing on building a carbon fibre frame. i repaired a cracked one recently. any ways this sounds cool here is some stuff i made http://craciunptr.blogspot.co.uk/2012/03/3d-work.html Quote Link to comment Share on other sites More sharing options...
Nannerman Posted July 9, 2012 Report Share Posted July 9, 2012 (edited) I've been designing some stuff in a beta version of autodesk, but I can't find anyone to cut the parts for a resonable (or affordable) price. Does anybody know of a place that doesn't charge a fortune for a simple part? I'm guessing that all of the cnc mills that cut aluminum cost well over $1000? I guess that would be about 646 bdp. Edited July 9, 2012 by Nannerman Quote Link to comment Share on other sites More sharing options...
Pete.M Posted July 9, 2012 Report Share Posted July 9, 2012 (edited) Could ask a university or college? Will still cost quite a bit though! I'm struggling to think of anything useful to design. I really want to come up with something that has never been done before. Edit: Has anyone used Creo? I tried to learn it but it's so different from the old Pro Engineer packages that I'm used to. Currently downloading Solidworks, again. Edited July 11, 2012 by Pete.M Quote Link to comment Share on other sites More sharing options...
Nannerman Posted July 11, 2012 Report Share Posted July 11, 2012 Is solidworks really worth paying for when it's just going to expire in a year? I guess if I really get going with this 3d stuff I might get it. I should be taking a CAD class in highschool next year, so I should be able to see what they use. I think I finally found someone to cut my prototype part. I'll get a picture of it on here when its cut. Today I've got some free time, so I'll try and make a v booster and bash ring. I've just whipped up a quick brake booster to get things going, not the most aesthetically pleasing piece of work but it'd do the trick . http://img7.imagesha...rakebooster.jpg I'm in the process of knocking up a stock frame but the CNC'd dropouts are giving me some trouble.... it's a pain not having anything to physically measure. Any suggestions about features that could be added? Jack What do you need to have measured? I could probobly help you out there. Do you own a cnc machine? Quote Link to comment Share on other sites More sharing options...
SunnyBoy Posted July 11, 2012 Author Report Share Posted July 11, 2012 (edited) Is solidworks really worth paying for when it's just going to expire in a year? What do you need to have measured? I could probobly help you out there. Do you own a cnc machine? I managed to get a copy of Solidworks free with my university, although it is the '10 version at the moment. It's definitely worth getting a copy at home when you're doing a CAD subject - helps no end. Also worth getting a rendering software as well to give the parts a nice finish. I'm just using a rough engineering drawing to get some measurements for the stock frame, however it only shows side dimensions so the chainstays are a pain. And no, I've not got access to a CNC machine at the moment . A couple more things I've done recently for shits and giggles: Edited July 11, 2012 by SunnyBoy 1 Quote Link to comment Share on other sites More sharing options...
Pete.M Posted July 20, 2012 Report Share Posted July 20, 2012 Sunny, those are some incredible renderings. How are you getting on with the bike frame? I've just modelled this 24", chainstays/rear triangle and dropouts look a bit dodgy but overall I'm pretty happy. Some rough geo: 72 head angle, 30mm bb rise, 365mm chainstays. Ignore the hub, I just put it there to help me. All sorts of feedback welcome, cheers. Quote Link to comment Share on other sites More sharing options...
SunnyBoy Posted July 20, 2012 Author Report Share Posted July 20, 2012 Sunny, those are some incredible renderings. How are you getting on with the bike frame? Just putting a few finishing touches to the chainstays - just trying to get some lofts that look half decent I'll post it as soon as it's rendered. Loving the 24" frame, looks nice and streety, I'm assuming it's designed for manufacture with steel. Quote Link to comment Share on other sites More sharing options...
Pete.M Posted July 20, 2012 Report Share Posted July 20, 2012 Cheers, yeah it was kinda designed with steel in mind although I didn't pay a lot of attention to that. The thicknesses and such are not accurate. It appears I've forgotten brake mounts, so I'll do them, redesign the chainstays and dropouts and try to get correct thicknesses etc. It would be cool to build an entire bike on CAD but it would also be such a mega time consuming project, for me anyway. Looking forward to seeing your frame. pretty sure it's gonna blow mine away! Quote Link to comment Share on other sites More sharing options...
SunnyBoy Posted July 20, 2012 Author Report Share Posted July 20, 2012 (edited) Well, I've got the bulk of it done and rendered now, missing out the brake mounts as well Might add some disc mounts at some point. Chainstays were being awkward with such weird geometries and lofts. Here we are: And some nice blue paint I wanted something that looks pretty original, hence the weird seatpost and chainstays . Edited July 20, 2012 by SunnyBoy 1 Quote Link to comment Share on other sites More sharing options...
SunnyBoy Posted July 20, 2012 Author Report Share Posted July 20, 2012 It would be cool to build an entire bike on CAD but it would also be such a mega time consuming project, for me anyway. I know what you mean, although I've got plenty of time this summer so I may get round to it. Wheels and tyres are usually the most time consuming parts - but I'd probably leave the wheels unlaced to save time. Quote Link to comment Share on other sites More sharing options...
Pete.M Posted July 20, 2012 Report Share Posted July 20, 2012 (edited) That is awesome! Love the weird seatpost and chainstays especially. Well done with the variable geometry sweeps etc, I don't even know how to do them yet! My thoughts exactly, I can't think of a fast way of making a wheel including spokes, so they would have to be left out. As for tyres, I probably wouldn't bother with much detail, a circular black shape would do for me! What rendering software do you use? I've never looked into rendering before.... Edited July 20, 2012 by Pete.M Quote Link to comment Share on other sites More sharing options...
SunnyBoy Posted July 20, 2012 Author Report Share Posted July 20, 2012 That is awesome! Love the weird seatpost and chainstays especially. Well done with the variable geometry sweeps etc, I don't even know how to do them yet! My thoughts exactly, I can't think of a fast way of making a wheel including spokes, so they would have to be left out. As for tyres, I probably wouldn't bother with much detail, a circular black shape would do for me! What rendering software do you use? I've never looked into rendering before.... I use a package called Photoview which comes with Solidworks which is pretty impressive and really user friendly. You can do spokes using a ball and socket type mate at the rim where the nipple would normally go. That way you can pivot the spoke about to perfectly align with the hub holes - but it's massively annoying to do and needs matching measurements. The sweeps aren't too bad to do, I normally do a 3D sketch between several pre-defined points or faces and then create a plane / sketch on that line. Then along that line create maybe 3-4 separate profiles for the sweep / loft to follow. It's quite easy to practice on a straight line at first - then try it along a splined path. 1 Quote Link to comment Share on other sites More sharing options...
JD™ Posted July 20, 2012 Report Share Posted July 20, 2012 There was someone, probably last year or maybe the year before, who did an entire bike in CAD. It was freakin' awesome. Can't find a link for you though... I think that he was actually linking out to another forum from here. Quote Link to comment Share on other sites More sharing options...
SunnyBoy Posted July 20, 2012 Author Report Share Posted July 20, 2012 I guess I'd better crack on with it then I'll post pics at different stages....Headset, stem and bars today me thinks.... Quote Link to comment Share on other sites More sharing options...
JD™ Posted July 20, 2012 Report Share Posted July 20, 2012 Found it : Here 1 Quote Link to comment Share on other sites More sharing options...
SunnyBoy Posted July 20, 2012 Author Report Share Posted July 20, 2012 Holy crap....that guy has some serious skill!! The rendering is absolutely amazing! Everything looks mm perfect, god knows how much time that took. Quote Link to comment Share on other sites More sharing options...
Pete.M Posted July 20, 2012 Report Share Posted July 20, 2012 Incredible stuff, I can barely dream of working to those standards! Sunny, do you have dimensions for the diameter of the bb and headtube? I can't find much useful info on them. Cheers. Quote Link to comment Share on other sites More sharing options...
SunnyBoy Posted July 20, 2012 Author Report Share Posted July 20, 2012 (edited) Sure, I think the ID is slighty larger than 34mm (1 3/8" I think) for both BB and head-tube. Update of parts starting to come together: Edited July 20, 2012 by SunnyBoy 1 Quote Link to comment Share on other sites More sharing options...
Pete.M Posted July 20, 2012 Report Share Posted July 20, 2012 I'm remembering the joys of working with Pro Engineer. Did an hour or so of work and then it just closed with no warning. Back to square one for me. FFFFUUUUUUUU >_< Nice update sunny. Quote Link to comment Share on other sites More sharing options...
SunnyBoy Posted July 20, 2012 Author Report Share Posted July 20, 2012 (edited) Hate that XD Used to get it loads when I was doing stress analysis using ANSYS - complete arse of a program. I just experienced my first Solidworks crash in a while, it really isn't liking the assembly model I'm pretty addicted to getting this model done now so I've made a fair bit of progress - I'm shattered now though so I'll start up fresh tomorrow or something, last update of the night: Edited July 20, 2012 by SunnyBoy Quote Link to comment Share on other sites More sharing options...
Nannerman Posted July 20, 2012 Report Share Posted July 20, 2012 That bike looks pretty good so far! I think I need to get solidworks..... There's no way you could do that in sketchup. I've got someone machining my snail cams, so I'll have to see how that works. Quote Link to comment Share on other sites More sharing options...
SunnyBoy Posted July 22, 2012 Author Report Share Posted July 22, 2012 (edited) Been busy so not much progress - got the pedals, grips and a few bolts done today. Got to tackle the forks now....maybe some nice carbon ones... Nannerman - how are the snail cams coming along? Got any piccys? Update: Edited July 22, 2012 by SunnyBoy 1 Quote Link to comment Share on other sites More sharing options...
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