frame mod?

[cherryride]

Been thinking of making a frame 2'' longer so i don't have to chop up my new Woodster wide body. If i add the 2'' behind the motor, i think the only thing i will need to do is change the center dog bones.


What do you all think about carbon fibre rods with pins for those?


Any advice on this or the frame?

 

[tsudo5th]

I am going to add 4" on to mine I have the same body and just trimmed the rear %5Bimg%5Dhttp%3A//i1250.photobucket.com/albums/hh540/tsudo5th/IMAG0070.jpg[/img]

Not sure on the cf not my area. The chassis I am just going to do new plate.

 

[cherryride]

I did some measuring and i think i can get by with just 1 inch longer. I found a sheet of 6061 t6 thats about 4.5mm thick on ebay for $128 ! .190x36''x36''

 

[Deluge]

I don't think CF rods would hold up. Overtime the dogbones twist, I think the CF would just shatter.

 

[Guest]

Carbon fiber is too brittle for dogbones.

 

[dozer187]

i wouldnt call it too brittle ....i had a cf driveshaft on my mustang handled the 800hp it pumped out without any issue

 

[Guest]

It is strong just not forgiving. If it was made from carbon fiber rod the size of the dogbone ball end that might work. I just think it would break where it was drilled for the pin.

Don't get me wrong, I would love to see it work!

 

[dozer187]

i think the best bet would prolly be a hybrid cf tempered steel driveshaft cf down the mid and tempered steel on the ends

 

[Deluge]

Or cut the stock shafts in half, slip them into a piece of steel tubing, set them to the length you need and weld it all up. I was actually thinking about doing this to my shafts to increase strength. I have MCD dogbones and they're beefy as hell. The center dogbones are still stock, though. So, I'm looking for ways to strengthen them.

 

[cherryride]

since the center dog bones don't move around, i thought making the carbon rods just slip into cups and pin would be very strong? they would only get twisting force.

 

[cherryride]

the cup could act like a collar.

 

[cherryride]

I thought about same thing Deluge! =)

 

[Deluge]

Yeah, I think I'm going to try it on the rear shaft. Should hold up. But if it doesn't, a new shaft is only $16 bucks.

 

[Guest]

since the center dog bones don't move around, i thought making the carbon rods just slip into cups and pin would be very strong? they would only get twisting force.

Can't hurt to try. You could make one the stock size and see how it holds up before you start your project.

 

[cherryride]

Think i solved my chassis problem! Found a Barca chassis for it. Its close to the Dunerunner, but lighter. Couldn't resist the price at NitroRC.com!

Chassis 51c00-54072 1 12.50

(for that price i can sell it for scrap if it doesn't work!)

Wheel base is 2.4'' longer. =)

 

[Deluge]

Holy shit! $12.50 for a chassis? That's nuts!

 

[cherryride]

i couldnt believe it either!

 

[Guest]

It might be the paper mâché version. LOL

 

[Guest]

It's recycled value might be higher than $12.50

 

[cherryride]

OK got the chassis.looks ok but front half is way different from DR. it has big holes in the bottom too.All the servos mounted to the top plate. Guess what? The top plate is like most exceed parts,impossible to find in stock!

I'm going back to adding on to mine and saving $ for other things!