pic: Team 34 - Differential

[Ed Sparks]

loading photo ...

[Eric Yahrmatter]

I see clutch plates...limited slip differential?

[AdamC]

Looks like it to me. Very nicely manufactured!

[Mike M.]

Looks great. good job guys. Just one question why did you use helical gears?


Mike M.

[s_forbes]

Nice work! I was really hoping some team with amazing machining capabilities would make an awesome ackermann set up, and you guys pulled it off very well.

[Ed Sparks]

Originally Posted by Eric Y

I see clutch plates...limited slip differential?

Yep. The clutch torque is adjustable. Just dial in the torque you want and off you go. It's very nice. (Available from Mcmaster-Carr)

[Ed Sparks]

Originally Posted by Mike M.

Looks great. good job guys. Just one question why did you use helical gears?Mike M.

The truth is they were lying around the shop from a past prototype and since it's still a COTS part, we used them. These are actually "Spiral Bevel Gears" from Boston Gear. I was inspired by the Lego Differential in case your thinking there's something about this design that looks familiar.

[psyco_klown]

Very nice! Whats the part number for those spiral gears. Those look perfect for a differential project im working on.

[Ed Sparks]

Originally Posted by psyco_klown

Very nice! Whats the part number for those spiral gears. Those look perfect for a differential project im working on.

This design uses:
(2) LSA110Y-R (Right Hand Spiral)
(2) LSA110Y-L (Left Hand Spiral)

Both are 18 tooth, 18 DP spiral bevel gears.

[techtiger1]

Mr.Sparks as a fan of drive systems, I am quite impressed with what you have done here looks great. Will 34 be attending the Palmetto if so I will take a look at it there if not Championships for sure. Good luck this year.

-Drew

[Aren_Hill]

should've taken it one step further with 4wd, then maybe 1 step past that with 4wd 4wheel steering

i wonder if anyone this year is upscaling and high performance rc car 4wd and full independent suspension, that would be awesome to watch drive.

i love the limited slip differential

[Ed Sparks]

Originally Posted by techtiger1

Mr.Sparks as a fan of drive systems, I am quite impressed with what you have done here looks great. Will 34 be attending the Palmetto if so I will take a look at it there if not Championships for sure. Good luck this year.

-Drew

Unfortunately, we will not be at Palmetto this year. We are attending Peachtree and Bayou.

[MrForbes]

How difficult would it have been to integrate the clutch plates into the diff housing, like in a normal automotive limited slip rearend? Seems like a lot of extra hardware there....

(when we were considering Ackermann steering, we were planning on using a software differential)

[Ed Sparks]

Originally Posted by squirrel

How difficult would it have been to integrate the clutch plates into the diff housing, like in a normal automotive limited slip rearend? Seems like a lot of extra hardware there....

(when we were considering Ackermann steering, we were planning on using a software differential)

I'll probably work on this during the off season. This was a simple way to go given the time constraint and limited resources.