Drawing an F1 car using CAD (73 posts)

Topic tags: F1 CAD
  • Profile picture of Fer no.65 Fer no.65 said 10 months, 2 weeks ago:

    @guilherme I have AutoCAD and SolidEdge as both were given for free from my school and then university. I did the tutorials back then too… I think I managed to draw an Astra in 2D using AutoCAD back when I was in 2nd year at school.

    But that’s all the skill I have hehe! Not sure I could do a whole F1 car. Specially in 3D, I don’t remember much of it!

  • Profile picture of Guilherme Guilherme said 10 months, 2 weeks ago:

    @fer-no65 Do you have a picture of that Astra? I’d love to see it :D

    Although I said I’d work on the survival cell, I had a idea on how to do the front wheel and I simply couldn’t let that idea slip, so here it is. Now, I may be very biased, but I think that the complete wheel is looking amazing!

    Complete wheel

    Front wheel (complete)

    Front wheel, outer edge

    Front wheel (outer edge)

    Front wheel, inner edge

    Front wheel (inner edge)

  • Profile picture of Zachary Cohen Zachary Cohen said 10 months, 2 weeks ago:

    Wow. Those wheels are amazing I love the subtle curves in the body of the wheel. You’re definitely learning Inventor extremely quickly!

  • Profile picture of snakebite snakebite said 10 months, 2 weeks ago:

    It’s my first post here. As a mechanical designer my daily work is CAD design so I’d like to think I am quite proficient in CAD and especially in 3d modelling. Since I just recently received my master’s degree I have almost exclusively trained using 3d solid CAD systems.

    I didn’t pay too much attention to this thread in the beginning, because modelling an F1 car in Autocad seemed as easy as brushing your teeth through your a**hole. It’s definately a good idea to switch to Inventor. I haven’t actually used Inventor, but I use Solidworks quite extensively and from what I’ve heard they are very similar. I have a couple of tips I would like to share (maybe you already figured them out by yourself or heard them from somewhere else):
    -Always attach dimensions to all lines curves etc. so it would be easier to modify them later. What I mean is don’t just draw a line and insert the correct length, but always add a dimension to the line so you can easily change it later.
    -Use as few dimensions to define a shape. If possible add relations to parts of sketches instead of duplicate dimensions. It will make later modifications a lot easier. Also use patterns instead of replicating the same element
    -Figure out a logical structure of parts and sub-assemblies in advane. Figure out how much of a piece is useful to model as a single part and which parts are easier to mange as sub-assemblies.
    -Mate parts in a way that makes later modifications easier. For example if two parts have holes that should line up you should use the “concentric” mate instead of other ways of positioning the parts. This will enable you to change the hole location on one part without having to modify mates in the assembly (the pieces will move according to the hole position)

    Good luck, it’s a very interesting project and I’ll be keeping an eye on it. Feel free to ask if you have any questions and I’ll try to help.

  • Profile picture of Guilherme Guilherme said 10 months, 2 weeks ago:

    Thanks Zachary :) There are still a couple of things I wanted to improve but lack the skill to do so, but at the moment I’ll leave it at that because it is a relatively minor issue.

    @snakebite first of all, congratulations on your master’s degree! Thanks for the input, I really appreciate it! If only I recieved your tips yesterday it would have saved me quite some time, as I figured a few of those the hard way when I was doing the wheel :P

    Indeed, working with dimensions and geometric constraints is probably the biggest departure from AutoCAD for me, and personally I think it is much better this way. I still need to get some experience with it though, as I used a one duplicate dimension when doing the wheel profile.

    About the patterns, I used them to make the sketch of the rim, and then extruded it as a hole through the rim. It worked much better than I though it would :)

    About the sub-assemblies, I was thinking just about that yesterday when thinking on how I’d do the other part of the survival cell. I think I’ll have to divide that one in at least two or three parts.

    Anyway, thanks for the tips and for offering help :) I’ve added both you and Zachary as friends, so if I need some help, I hope you guys don’t mind me PM’ing you :P

  • Profile picture of Lin1876 Lin1876 said 10 months, 2 weeks ago:

    Again, really good work.

    Sorry it’s taken so long to remember this thread, but going back to my suggestion of using the finished model in a game (I’m thinking of Speed Dreams because that’s what I know most about, other games will vary), your move to Inventor is slightly unfortunate. The game needs either Blender or AC3D because they are supported on Windows, Mac and Linux. A quick Google search hasn’t revealed much, but the programs seem rather different, making importing rather tricky.

    It’s not my area of expertise though, so I might be wrong.

  • Profile picture of Guilherme Guilherme said 10 months, 2 weeks ago:

    @lin1876 Coincidentally, I was talking about this to a friend who is a programing genius, and he saw the wheel, liked the graphics and asked if I wanted to turn my car into a game of some sort :P He said he can make a program to convert my Inventor data to whatever game engine you want (he is that insane)

    Anyway, I was working on the wheel again, but this time on the brake system/axle. Now, my representation of these systems is extremely simple. I have so far done the brake disk, axle and thing I don’t know the name of, but it bolts on the brake disk and houses the axle. Oh, and also a few screws (actually it was only one, repeated ten times) :P Tomorrow on the to-do list is the brake caliper, brake pads, cooling ducts and that round carbon cover over the upright. I know it is a odd decision, but I’m not designing the uprights at all. Even though all the sprung part of the car sits on it, its design is far too complicated and I’d rather focus on more practical things. I had to redo most of the wheel by the way, since I messed up on the axle diameter (it was far too big). I should be able to complete it tomorrow and post the final version.

    (EDIT: Do you mind if I post images this large @keithcollantine? If it wil cost more for you in terms of transfered data, then sure, I’ll stick with the small flickr images. I can live with them when I’m posting pictures of individual pieces, but I really wanted to post a big one when posting complete parts with lightning effects like I did with the wheel yesterday)

  • Profile picture of HoolyF1 HoolyF1 said 10 months, 2 weeks ago:

    @Guilherme this is absolutely amazing! Keep it up. Looks like a really cool project to try out but I would not have the skills or patience to even attempt it. Good luck!

  • Profile picture of snakebite snakebite said 10 months, 2 weeks ago:

    @Guilherme I’m sorry if that’s old news for you, but just in case it isn’t I would suggest not spending your time on designing nuts and bolts etc. because there are various databases where you can download detailed standard parts.

    Also there are some websites that house different third party 3d models. for instance http://grabcad.com You should check them out. If not for using some pieces on your project then maybe for some inspiration on how to desing your own.

    Great to see so frequent updates. Hope you keep up the progress when you get to some more challenging components.

  • Profile picture of Guilherme Guilherme said 10 months, 2 weeks ago:

    Thanks @hoolyf1! :)

    @snakebite thanks for the tip, I’ll check that database tomorrow! The bolts I designed didn’t took me more than 2 minutes to design though, they are very simple and I did them just to mess around with assembles as I have a lot more to learn on that front. Talking about updates, I’ll make a post right now :)

  • Profile picture of Guilherme Guilherme said 10 months, 2 weeks ago:

    So, I finally finished the front wheel. At least a beta version of it. The complete model is composed of quite a few pieces, and in all took me about 10 hours to design (plus some two hours of video tutorials that I needed :P)

    As I said yesterday, I didn’t design the uprights because they would be far to complicated. However I did draw a relatively complicated part, although not nearly in full detail, but I loved it anyway, by far my favourite model yet. It is the brake caliper:

    Brake caliper

    The brake disk and axle had already been drawn yesterday, but I did some changes on that thing that piece that is bolted on the disk. I’ll post an image showing that later on. Here is the brake assembly:

    Brake assembly

    The most challenging part yet was the cooling ducts. Well, not exactly, that was pretty easy actually, but that piece of bodywork that extends forward to the tyre was very hard to do, as it would intersect with the air duct and make both look horrible. I think I got a satisfactory result in the end. Here’s the cooling duct by the way:

    cooling ducts

    I’ll post other images below

  • Profile picture of Guilherme Guilherme said 10 months, 2 weeks ago:

    And here are the finished models:

    Front wheel, outer face

    Front wheel, inner face

    Front upright/brake assembly

  • Profile picture of MatK77 MatK77 said 10 months, 1 week ago:

    Nice! I’m a mechanical designer and a 3D hobbyist, I always wanted to tackle an F1 machine using CAD, and I know how tricky it must be. Looking good so far & I’ll be watching with interest!

  • Profile picture of Zachary Cohen Zachary Cohen said 10 months, 1 week ago:

    Wow thats a lot of progress since I last checked on this thread. Nice work.
    Annoyingly I’m doing some extremely intensive training for work for the next few weeks, and so have no time to do anything for myself such as looking at this forum.
    A couple tips though that I constantly have to drill into my students;

    Firstly, dont worry about fastener libraries online. Inventor has a fairly robust content center in the assembly field and you can add pretty much any fastener from that where Inventor will auto size it to the hole and everything, and show it as a bolted connection (useful for later testing and drawings if you do them). When you’re in assemblies, where you click on place, just click the drop down arrow below it and you’ll see place from content center.
    If you wanna get real complicated you can use the bolted connection command to create all sorts of fasteners. The coolest part about it is you can put in the force required for the connection and Inventor will help find the fastener which best meets your needs.

    In response to exporting Inventor files, Inventor can export in a bunch of different formats, including .STLs which are used in a lot of stuff. you wont get the editability like you will with inventor files such as .ipt or .iam, but it still is a great way to export (especially if you have a 3D printer)

    Lastly, when you place your holes for fasteners or shafts and such are you doing it by doing a cut extrude or are you using the hole command? If you’re doing the cut extrude, stop now. The hole command will make things a lot easier/faster, and make assemblies and drawings a bit easier since the software recognizes it as a hole feature.

    If you need any help with anything, do please message me. I’ll be more than happy to help, but because of my crazy schedule right now it will be a bit hard for me to remember to check this forum regularly.

  • Profile picture of Zachary Cohen Zachary Cohen said 10 months, 1 week ago:

    Also, you said that the brake duct was challenging for you. It looks really good though so it seems that you figured it out. What tools did you use though to get it looking so good?

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