pic: 6wd chassis
 

Re: pic: 6wd chassis
 

This is an excellent job of listening to advice and incorporating the changes to make a superior product. Overall I think this is a great design so far. How thick are the plates? It looks like 1/8".

Re: pic: 6wd chassis
 

why thank you, but i still need to make a change i realized that by moving a standoff in order to cut the corners of the chassis it will now get in the way of the wheels

Re: pic: 6wd chassis
 

(edit) i looked at the other picture, answered my question

Re: pic: 6wd chassis
 

to keep it safe and save money try to use 1/4" plate. looks great

Re: pic: 6wd chassis
 

How would 1/4" plate save money over 1/8" plate?

Re: pic: 6wd chassis
 

also it is steel or aluminum?

Re: pic: 6wd chassis
 

Aluminum if it is a 1/4" inch or 1/8" plates. No STEEL unless it is that really awesome thin-wall stuff.

Re: pic: 6wd chassis
 

It wouldn't.

Re: pic: 6wd chassis
 

Well, it would if you kept breaking it and having to replace it. Obviously you need to make sure that 1/8 is strong enough to do what you want. You do NOT want to be burning money having to replace parts because they werent designed properly.

Re: pic: 6wd chassis
 

1/4" thick is always more expensive because it is more material. In the age of bumpers, a properly supported 1/8" plate will more than stand up to the abuses of FIRST. If you want to increase the strength substantially without increasing weight by too much you could bend the plates on the top and bottom to create a flange. This will increase the stiffness of the plate dramatically.

Re: pic: 6wd chassis
 

Flanges are pretty awesome things. Here on 148, we like them. If you have access to sheet-metal or metal bending capabilities, it will help you make all kinds of very strong, very light pieces.
To paraphrase Ferris Bueller:
"They are SO choice. If you have the means, I highly recommend adding a few."

Re: pic: 6wd chassis
 

If you have the patience to dig through it, there are a number of examples on how the location of material affects the strength and stiffness of a beam in this thread. http://www.chiefdelphi.com/forums/sh...ad.php?t=67605

Re: pic: 6wd chassis
 

it is 1/8" alluminum 5052 alloy, so it is harder and stronger then other alloys.

Re: pic: 6wd chassis
 

Why not use 2024 or 7075 if your not welding anything to those pieces. 7075 sheets have a brinell of 150 and a yield of 65 ksi.