1/6 Losi Hummer (CC1717) Build

[brian015]

Speaking of 7075-t6 aluminum...here is what I'm making my chassis out of:



It was a 12"x24" piece of 7075-t6 that I cut in half lengthwise. I have the other half as a spare if I mess this one up.

It's 4mm thick:



I'm using flat plate for this build because I'll have more options for battery size and placement than I did for my other build using aluminum u-channel. Since I don't have the rails of the u-channel for strength on this one, I'll be sure to brace it well so it's nice and strong.

[Jahay]

If you are using a hummer body, you should bling this chassis out and polish it to a mirror shine hah
interested to see how this takes shape!

[JERRY2KONE]

How much did that 12" X 24" sheet of 7075 cost you, and where did you acquire it from? That looks like an interesting way to start out for a custom home made chassis setup. I kind of like the idea of starting from scratch and designing your own chassis the way you want it.

[brian015]

Originally Posted by JERRY2KONE

How much did that 12" X 24" sheet of 7075 cost you, and where did you acquire it from? That looks like an interesting way to start out for a custom home made chassis setup. I kind of like the idea of starting from scratch and designing your own chassis the way you want it.

Couldn't pass up this deal on ebay:

http://cgi.ebay.com/7075-T6-Aluminum...item20b53c96d0

[JERRY2KONE]

That is pretty good for $20, but is there anyway to varify the quality of the aluminum or to make sure you are truly getting 7075 T6? That should be a great piece of aluminum for making a very unique chassis for a great R/C project. Remember, measure twice, cut once. Good luck with your personal design.

[brian015]

Originally Posted by JERRY2KONE

That is pretty good for $20, but is there anyway to varify the quality of the aluminum or to make sure you are truly getting 7075 T6?

Well, in the above picture (where the light reflects off of it), you can see that the aluminum has been stamped "7075-T6." I bought this from a store that primarily deals in metals, that I've bought from before, and that has excellent feedback. So, I guess I'm just going to trust them on this without further testing or verification.

[brian015]

Originally Posted by Jahay

If you are using a hummer body, you should bling this chassis out and polish it to a mirror shine hah
interested to see how this takes shape!

Maybe use this as my inspiration:

[Jahay]

haha wow that looks silly! but i can appreciate the work needed to drop it all the way down!

[JERRY2KONE]

Yea that does look silly. Kind of pointless wouldn't ya say? I bet it rides like crap to, because of the way they had to modify the suspension just to get it lowered like that. What a waste of a Hummer. Like you said I can appreciate the talent and the amount of work it took to do that, but for what? Sorry I am more of a practicality type person. All that flash for cash stuff is just stupid to me. Belive me when I was younger I used to put high value stereos in my rides, but one can only take so much loud music and the human ears were just not meant for that kind of punishment. I am sure that money could have been spent for a much more realistic facelift.

[Jahay]

at least any thieves will have probs getting his 28" rims off haha

[JERRY2KONE]

Originally Posted by Jahay

at least any thieves will have probs getting his 28" rims off haha

Or the catalytic converter which have become so popular with thieves these days. From what I understand there is a very tiny ring seal of sorts made from a semi precious metal inside each converter that can be sold. Hardly seems worth the trouble of removing the converter, and then tearing the converter apart to me? Anyway kind of hard removing anything from the bottom of that vehicle now without putting it up on a lift.

[Overdriven]

That hummer probably has airbags which ride pretty darn good, hydralics have a sucky ride. It was also body dropped, body lowered over the chassis raising the floor. But yea, kind of a waste IMO too. Btw you don't have to take the catalytic converters apart, local scrap yards pay up to about $100 each as is. Sucks the theifs only have to invest in a jack and a cordless sawzall.

Back on topic. I'm curious, what's the width of the body?

[brian015]

Originally Posted by Overdriven

Back on topic. I'm curious, what's the width of the body?

Overdriven: I know you asked that before - I just haven't had the body back out of its box to measure - I think it's around 11" wide but will measure this weekend.

[mjderstine]

Originally Posted by brian015

Well, in the above picture (where the light reflects off of it), you can see that the aluminum has been stamped "7075-T6." I bought this from a store that primarily deals in metals, that I've bought from before, and that has excellent feedback. So, I guess I'm just going to trust them on this without further testing or verification.

i got some 1/8th from the same seller a couple months ago for my custom chassis build. its def softer than normal 1/8th buggy chassis aluminum. and it bends a lot easier.

one thing i noticed is it doesnt take a countersink very well. its not a clean edge at least. it leaves a lip around the edge. its no my counter sink causing it because its a brand new 6 fluted bit. its almost like it pushed the alum out.



it bends my bumper back all the time if i tap into anything at the last bend to the left in the picture.



completed chassis.

[brian015]

Originally Posted by mjderstine

i got some 1/8th from the same seller a couple months ago for my custom chassis build. its def softer than normal 1/8th buggy chassis aluminum. and it bends a lot easier.

one thing i noticed is it doesnt take a countersink very well. its not a clean edge at least. it leaves a lip around the edge. its no my counter sink causing it because its a brand new 6 fluted bit. its almost like it pushed the alum out.

it bends my bumper back all the time if i tap into anything at the last bend to the left in the picture.

Did you buy 7075-T6 or 7075-O? I guess I'll have to see how my piece works for my build.

I will say that from my experience 1/8" aluminum sticking out in front supporting a bumper will bend every time - that's what happened when I tried it with 6061-T6 anyways.

Edit: I checked out your build - I hadn't seen it before - nice work.