hi iam building a chassis but icant make my mind up about the triangulation. so can you help me out. iam making it out of 25x25x1mm box to keep it as light as possible. soz about the crap drawing lol.
adam

this is an outline of the chassis

Have you seen this?


There is a chassis idea in it

something like this maybe?

Description

sorry, have to admit, i don't entirely undersand your drawing

ive just lost a page full from not logging in but iam making my own version of this but i want to see how light i can make it but still safe.
adam

That one doesn't have any triangulation, just some lovely carbon fibre, and a pretty big price tag.

quote:

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Originally posted by andyps
That one doesn't have any triangulation, just some lovely carbon fibre, and a pretty big price tag.

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lol iam making the locost version. with alloy side panels the tub bit that you sit in and carbon fiber outer panels.
adam

id say you start diagram isnt quite right. You should approach from the angle of sorting all your 'points' first, ie the 10 or so points for the front suspension mounts, the engine mounts, seat mounts, diff mounts etc. Once these points are located, link them by appropriate straight lines where possible (ie not through you or the engine), then triangulate like in the piccy above. Use a thinner tube for triangulation, if its done right it will be mostly loaded in tension and compression, no bending, so save weight and dont be shy of adding extra bars where ever you want to.

The standard locost chassis is far from perfect, but it still works. If you avoid glaring errors and weld it well you quite literally cannot go wrong. Experience learned can be applied to future cars!

Once more I'm going to suggest going to a model shop and buying lots of balsa wood strips and a glue gun.

Stick together the main spaceframe shape you want (to scale i.e. if using 2.5mm square balsa make it 10:1) and add triangulation by twisting the model gently and thinking about what would make it stiffer.

When you're happy make some wheels and skin it with thin card and keep it in the garage for inspiration when making the real thing

ive sorted it out now the designer guy at works gonna design it on his computer and stress test it to see how good it will be.
adam