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What is the Best Free CAD Software for Racecar Engineering?

May 20, 2019



today we're talking CAD software and specifically what I believe is the best free CAD package that you can use now I'm not being paid for this video at all it's not being sport is not advertisement for Amy's companies the main reason I'm making it is that if more people realized how accessible and relatively easy to use CAD software is more people might actually use it to design their models and then at my consulting company Jake F Aero I might actually be getting CAD models from people instead of sketches and that will be much easier to work with so it's really a win-win situation for me and you the viewer let's cut to the chase the software that I recommend is called on shape now it's a really great CAD package you've heard of things such as SolidWorks which is very common CAD package on cheek is really similar to that but the difference is that on shape is free and free for commercial uses up to ten models now that means that anyone can pretty much use it and it's a really powerful interface on top of that it runs in your browser so you can open up on any computer or your mobile phone or tablet which is really really handy and you don't have to install it anywhere to see what's going on so on shape is considered a parametric CAD software what does that mean it means that you can go back and edit any of the parameters you use to design a part so you may dimension this circle here and then you can go back and change its diameter at a later point and it allows it to update this allows easy construction of parts and it's easy to make changes down the line right now I'm constructing this rear wing that's going to be a Subaru WRX rearing the rally spec one and we can see that I put this wing profile in and I extrude it I don't quite like how it looks so I go back and change the profile again and now it's updated to the new wing profile now this means that if I make a little error it's not a B and if I want to do any design modifications in the future it's really really easy to do now this entire rear wing assembly that I'm doing here it's obviously quite crude because I was just doing it for a demo purpose but it only took me about ten minutes to make which is really really quick when you think about it so basically you can build stuff by either subtracting from an existing body or adding your own body so I can draw these curves here and from the curves I'll extrude out different profiles and with those profiles I can then perform a pattern to make a whole bunch of them and then cut out using a triangle the leading edge to give the triangular profile on the front now you can see it's just like sculpting a model you just add and cut where needed and then through that process you'll eventually get the model that you're looking for and this means there's quite a powerful tool because while this is only a simple geometry I can apply these curves to a much more complicated geometry such as designing an entire car or doing complicated Aero surfaces so just here I'm going to show you a quick demo of me doing an entire basic car from scratch this whole car took about 20 minutes for me to make the way I constructed it was just using a whole bunch of sketches on some different planes so you can see me making those planes there so I'm making a whole bunch of planes and then I copy my sketch to each one of these individual planes now once it's on the individual plane I can then just manipulate the dimensions of each sketch so this allows full dimensioning you can dimension every single point of the sketch so you have consistency between them I'm not doing that I really should be but I just want to quickly get this out for you guys it's going to make profile them you can see the back of the car taking shape here and then I'll go through and bring down the bonnet at the front of the car and then from that I can loft another profile and then check and see if I'm happy with that so we can see very clearly there how I start to make my car shelf bit further down the line I go and I cut out a few wheel arches and I can always change any of these dimensions at any time so at any point I can change the height of any of these sketches if I noticed that there's curve not lining up or anything like that so it gives me full freedom over what I want to do and while the final car that I made isn't exactly a work of art it's pretty good given I only invested twenty minutes into it and it's easy to see how you could model your own car now if you have a look at these are some of the other intricate aerodynamic surfaces that you can model there's my my baseline model they used to test some stuff on and it's it's really quite easy to get these very intricate and complicated surfaces and this sort of thing people seem to think the cat is hard to do but it's really not that hard once you just play around a bit and see what's happening then bu the software is that it also supports 3d mice which is something that I like because I have one but not one's going to have it but it's a nice little bonus so that's what I think the best CAD software available if you have any alternatives that you like to use feel free to leave a comment below and don't forget to go to WWJ KF arrow comm and check out some of the consulting services we have available there thanks for watching and see you next time

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34 Comments

  • Reply KYLE.ENGINEERS May 20, 2019 at 6:28 pm

    UPDATE Onshape has changed their pricing strategy quite a lot these days, and as Fusion 360 has improved its feature set, I have found myself using Fusion 360 over the last year. So that is my new recommendation!

  • Reply Prashant Fauzadar May 20, 2019 at 6:28 pm

    i want to design a bicycle (actually tricycle for safety) with minimal components , and i am fried of searching. Rattlecad seems to be good but no simulation. can you help me in deciding about the proper design program. In India cost is also a factor which people take in mind. I have read much about bicycle dynamics now i want to do some designing.

  • Reply ᚉᚆᚏᚔᚄ ᚁᚓᚅᚅᚓᚈᚈ May 20, 2019 at 6:28 pm

    Ah, I'll stick with Blender.

  • Reply Bob Hastrich May 20, 2019 at 6:28 pm

    Will it give you real Measurements looking to cad my go kart frame before i waste tubing

  • Reply Adam Howell May 20, 2019 at 6:28 pm

    Hi mate, was just wondering is there any software you'd recommend for conceptual design in an engineering context e.g a bike that suggests materials you should use and alternatives?

  • Reply ΘΑΝΟΣ ΛΟΥΚΑΔΑΚΗΣ May 20, 2019 at 6:28 pm

    Ηello,how can we export a model from this programm to asseto corsa?

  • Reply Patrick R May 20, 2019 at 6:28 pm

    None of it it free…

  • Reply I Biskero May 20, 2019 at 6:28 pm

    I need help, i have little project going on and i was wondering if there a simple program for studing aerodynamic around an obj model made on blender, if it is free its better, i dont need complicated and high details I only need some program to see how the air move around a body, thanks

  • Reply Iulian Moga May 20, 2019 at 6:28 pm

    Hi ! You have CAD tutorial in OneSpahe ? 🙂
    I saw you have it a great skill in this softweare .

  • Reply Dean Long May 20, 2019 at 6:28 pm

    Why is "Free" all you YungUns talk about? Do you think Facebook, Google, AutoDesk, Ford, Fiat/Chrysler, GE, Whirlpool, John Deere, Verizon, Apple, On and on and on and on to infinity do anything for free? WTF do you think you are gaining by giving everything you create for free?

  • Reply Claas Kuhnen May 20, 2019 at 6:28 pm

    Free of charge is not really true. Fusion 360 is fully free when you apply for a hobby license and you have build in rendering, cad cam, sim and more modules and that for mac and win.

    plus for modeling tools fusion offers more than onchape too.

  • Reply vondeliusc May 20, 2019 at 6:28 pm

    SolidWorks is at the top of the hierarchy, but I am expert in it. I really love Fusion360 and it can even be run on a Chromebook and is very SolidWorks-like so hardly any learning curve and is a serious contender against SW. SW has issues like backwards compatibility designed in by GREEDY DSS, and has added CAMWorks (which is nice). OnShape is third on my list with a bit of a greater learning curve than F360, but is definitely a contender. Whatever your choice, start to learn the basics of 3-D modeling (sketch-extrude/planes/fillets/coordinate system) and you will be WAY ahead of the game. All modern technologies are based off coordinate systems: CNC, 3D printing, etc., and allow you to model real world objects digitally.

  • Reply Okipouros May 20, 2019 at 6:28 pm

    Ι find your lack of NURBS disturbing

  • Reply DEEPAK AKKI May 20, 2019 at 6:28 pm

    I used this software for one of my projects after extensively using CATIA and I find it a little difficult to go through and I found some of the files not compatible. After some days, I am sure we will get a hang of it but its just about personal preference.

  • Reply CHARLEY May 20, 2019 at 6:28 pm

    Autodesk Inventor is free if you're a student

  • Reply shrish revankar May 20, 2019 at 6:28 pm

    Could like do a small proper guide?

  • Reply CPLCraft May 20, 2019 at 6:28 pm

    I used Inventor pro, is that a good program?

  • Reply Jose Gabriel Egas Ortuño May 20, 2019 at 6:28 pm

    Haha the software companies are like drug dealers taking advantage of "innocent" people: the first ones are "free", until you get addicted and have no choice but to pay lots of money… It is free up to 10 models and run on your browser? That means it is NOT FREE at all! I bet the files are incompatible with other programs and I am sure the software is not open source. If you want a really FREE, for whatever use, whatever operating system, completely open source, functional and powerful CAD software, have a look at FreeCAD:

    https://www.freecadweb.org/

    Being real free software, FreeCAD can be combined with many other free packages to create complex models and add computer aided engineering (CAE) capabilities such as finite element analysis, fluid dynamics, multi body dynamics, etc. A powerful tool, and free as the freedom!

  • Reply Eric Öhman May 20, 2019 at 6:28 pm

    Nice to se an old intuos with pen holder put to use 🙂 I had a intuos (one) until 3 years ago when the pointer got all jittery. bought a used intuos 3. good products that last a looong time 🙂

  • Reply Chase Benson May 20, 2019 at 6:28 pm

    Love it! First started using it in my FEA class last year and I fell in love ever since

  • Reply AndrewAitchison100 May 20, 2019 at 6:28 pm

    Would you suggest this over a free 3 year Autodesk licence for students?

  • Reply CCGtv May 20, 2019 at 6:28 pm

    I just checked out your video, dopeeeeeee, stay blessed !!!

  • Reply Patrick B May 20, 2019 at 6:28 pm

    Do you know how can we do Large Eddy Simulations at home?

  • Reply Tom Cop May 20, 2019 at 6:28 pm

    It's not free for the professional which this videoer sounds like.

  • Reply Alex May 20, 2019 at 6:28 pm

    I mis a LOT of functions in the software

  • Reply B Dykes May 20, 2019 at 6:28 pm

    Shudders at all the under-defined geometry.

  • Reply SolidWorks - AutoCad - Inventor - Tutoriais May 20, 2019 at 6:28 pm

    Hi, do you want to learn how to export from sketchup to solidworks? See my video
    https://www.youtube.com/watch?v=lC-CgwORD48

  • Reply Julien Jahnke May 20, 2019 at 6:28 pm

    Wow that looks a lot easier to use than my schools cad program when I was making a car on it I had to make every panel on the car and put it on the few squares that made up the cars shape if I fucked up I had to do the panel all over again

  • Reply DocWolph May 20, 2019 at 6:28 pm

    From.Z or MoI.

  • Reply George Holt May 20, 2019 at 6:28 pm

    Sketch up 😀

  • Reply El Chasco May 20, 2019 at 6:28 pm

    it looks like solidworks

  • Reply Mixam the Slav May 20, 2019 at 6:28 pm

    lol i had onshape before this and i came to see if there was anything better.

  • Reply maks bogaers May 20, 2019 at 6:28 pm

    what cfd do you use ?

  • Reply Jason Argyropoulos May 20, 2019 at 6:28 pm

    Wow this is amazing. Thank you for posting this. As a early engineering student, ive been looking for programs to start practicing but cant justify buying SolidWorks and pirating always leads to headaches for me.

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