J Bone
 

Thanks guys,

J Bone, what are those little blue braces you have on the rear chassis/rear shock mount?

Have you broken the chassis there before.

How different does the truck handle with the extra weight up front and the forward battery position?

Thanks Greg G

Don't the chassis break in front of these braces?

That is a rear chassis brace. It was on when I bought it. It makes my truck the best!! (sarcasms).....

I have too much rear traction that I add weight up front to help with on power steering.

I don't understand why you'd want them. They add weight in a spot where you don't want it, and beam strength in a spot where you don't need it.

I was thinking that... I believe they break in front of those upper brace screws huh?

I'm not looking at my truck.. So I'm wondering if anyone has a pic of the minded RPM brace and stock bumper. If not,
im sure once I'm home ill see it..

You guys dont get it. Its about looks!! Not function!!! :blush:

Craig, they are carbon fiber, the braces weigh about 3 grams each. You have to look at why the chassis' break where they break. It is because you have a boxed section (forward of the servo) connected to a non-boxed section (area around the servo). When there is a large force put on the front kicked up part of the chassis, the load is transfered to the top plate. The top plate is only connected to the chassis through the "verticle" part of the front "box" So the chassis flexes behind the boxed section, which creates a pivot point at the front of the chassis. This is where it breaks. If you box in the area around the servo (my braces), the force is distributed more evenly between the two, and less of a pivot point is created where the chassis is at its narrowest (and weakest).

So your saying those two upper post flex back? Still seems like the weak part of the chassis is not supported. e seems like to pivot point is where the upper brace meets the tower
http://www.rctech.net/forum/attachme...e-rctech-2.jpg

Yeah... don't think your braces do anything Admin.


Why don't you get us a video of you testing the braces repeatedly? Maybe if they really work through repeated triple casings maybe some of us would buy some off you?

Did you just totally guess where you thought they should go or something?

There is actually two pivot points, it just happens that one of the pivot point is at the narrowest part of the chassis. You can kinda see in that picture of my braces that the back part is bolted under the wing nuts for the battery hold down. I didn't just use the included long set screws to bolt everything together. The short threaded pieces that come with the kit would not have enough purchase into the chassis to handle the extra stress transferred by the braces, so I used a piece of 4-40 all thread, threaded all the way into the chassis. A little bit of the stand-off that the all thread goes into has to be removed to let the braces sit at the same level as the top plate. Then I used some 4-40 lock nuts to secure the braces on the all thread. Then I top it off with the battery wing nuts. When I get home I will post pics of my first SC10 (the one that started life as a T4 and was converted to an SC10 with some SC10 parts off of Craigslist). The chassis I got off of Craigslist was destroyed, but not in the usual way. The two walls of the triangles next to the servo were blown out, and there were cracks in the bottom of the chassis that went from the servo bay, into the ESC and Receiver pods. I am fairly certain that the guy I got the chassis from was running the RPM front bumper, as it seems this is where the stress would now be transferred. I put the T4SC10 hybrid truck together a few days before the start of an SC points series, so I didn't have time to order a new chassis, so I made the braces as a temp fix. I then realized it would be cheaper to build a new SC10 into what I wanted vs. what the cobbled together parts truck would be, so I got a new SC10FT and put my braces on it from the get go.

That don't seem like the same issue as the busted chassis in the pic I posted. That sounds like a clapped out truck

FYI, if you haven't been to rcshortcourse.com you should visit. I have been a member for about a year and you get a direct answers as opposed all the nonsense that goes on here. I have gained a ton of knowledge from this site but all it seems to be lately is nonsense...

Gotcha...


So you've strengthened the less likely failure mode and increased the chances of the more common failure mode.


Good work...



WTF??? I guess it's just "tricker" than I can wrap my head around apparently.

http://img585.imageshack.us/img585/7861/whole.jpg

Lake Ober What rim or wheel is on your sc ? I like them.

FYI, even though there is more nonsense on here, This site has 100% more info that is usable than rcshortcourse has. Plus I have noticed anything new that comes up is posted here then that info is taken to rcshortcourse and asked all over again with less answers