[Kartbuilding] Chassis Design

Stephen Burke sburke at burkesys.com
Mon Oct 26 17:37:56 GMT 2009

Hi Craig,

As for as building the kart in SolidWorks, I suggest to make the chassis 
as one part. Then you can take the chassis into an assembly, and add the 
front steering arms, rear and front axles etc. It is easiest to make the 
chassis using the Weldments feature in a SolidWorks Part.

If you could send on a copy of your design and findings that would be 
great. I'm interested to see what type of chassis you come up with.

Best of luck,

On Fri, 23 Oct 2009, Craig Couldrey wrote:

> Hello Steve=2C thanks for useful information. Concerning my design's=2C the=
> y will both be designed to comply with racing regulations=2C MSA etc and as=
> such will have a fixed rear axle with no suspension components.=20
> I am considering the approach to the space-frame/Ladder design and don't kn=
> ow whether to build it as 1 part and tube it form there or to build separat=
> e parts and assemble. What would you suggest..?
> I am still researching specific kart characteristics and will try to get ho=
> ld of that book to add some theory to the project. The project is going to =
> be focusing on the possible advantages gained by an unconventional chassis =
> design=2C such as reduced weight=2C increased driver protection and greater=
> torsional stiffness. There is so much possible to do=2C but I do have a ti=
> me limit and I believe that I have enough work to be getting on with for tw=
> o chassis'.
> The design's have not been started yet=2C I am still in the research phase =
> and currently waiting to build a new computer to do my design on. When the =
> project has been completed and marked I will send you a copy of my design's=
> and findings.
> Thanks again.
> Craig
>> Date: Thu=2C 22 Oct 2009 23:02:45 +0100
>> From: sburke
>> To: couldrey
>> CC: kartbuilding at lists
>> Subject: Re: Chassis Design
>> =20
>> Hi Craig=2C
>> =20
>> Thanks for your email. It sounds like a very interesting project you have=
> =20
>> there! I wish I had the time to look into such areas.
>> =20
>> Reading your email brings something to mind. Take a look at the following=
> =20
>> kart:
>> http://www.kartbuilding.net/gallery/v/OtherPeoplesKarts/OscarForand/
>> A fellow kartbuilder sent in those photos of a space frame type kart=20
>> chassis. I know he had some extra things to do to allow the top portion o=
> f=20
>> the chassis to flex.
>> =20
>> Take a read of the following PDF:
>> http://www.kartbuilding.net/The_NatSKA_Guide_to_Karts_and_Karting/Pages-1=
> -10-11-12-13-Chassis-Design.pdf
>> I suggest you try and get your hands on that complete book where it=20
>> explains chassis design=2C and the types of chassis available.
>> =20
>> I also advise you to "nail down" your project. Specifically=2C you need t=
> o=20
>> decide on the following:
>> Are you dealing with suspension in Karts (if so=2C this can change the=20
>> chassis design a lot).
>> Are you having a live rear axle? With both rear wheels attached to the=20
>> Axle (i.e. not using a differential)?
>> =20
>> As for advise regarding how to approach the kart chassis design in=20
>> SolidWorks=2C take a look at the following solidworks blog of mine:
>> http://solidworks.burkesys.com/2009/08/3dvia-tv-solidworks-official-youtu=
> be-channel/
>> There is a youtube video there from SolidWorks on how to design a chassis=
> =20
>> in SolidWorks using a "Weldments" method in a Part. I suggest you copy=20
>> what is done in the video.
>> If it is a very simple chassis you are building=2C then you can make the=
> =20
>> seperate parts and assemble them together.
>> =20
>> I would be most interested in receiving a copy of your Project and=20
>> findings! It would make a great read=2C and perhaps answer some of the=20
>> questions regarding types of chassis in the back of my mind.
>> =20
>> If you have any specific questions=2C just drop us an email. By the way=
> =2C I'm=20
>> based in Ireland.
>> =20
>> Best of luck=2C
>> -steve
>> =20
>> =20
>> =20
>> On Mon=2C 19 Oct 2009=2C Craig Couldrey wrote:
>> =20
>>> Hello=2C my name is Craig Couldrey=2C I am a student at the University =
> of Derby in my last year studying Mechanical Engineering.
>>> For my final year project I am designing two kart chassis=2C a conventi=
> onal space-frame type and a non-conventional type and comparing both for to=
> rsional stiffness=2C weight gains=2C and testing both using Solidworks simu=
> lations.
>>> I have downloaded the Solidworks file's and the chassis looks very good=
> and will help me with dimensions etc.
>>> Have you got any advice for me for when I start building my chassis'?
>>> You have built the chassis up of various separate parts=2C each tube? a=
> nd then assembled?
>>> I would also like to thank you for the wealth of information on your si=
> te and blog. Also=2C are you based in the UK?
>>> Many thanks
>>> Craig Couldrey
>>> _________________________________________________________________

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