Source for open differential?

[sanddrag]

It might be something where there is a brake on each side, to determine which side power goes to. Just a guess....

[artdutra04]

Originally Posted by sanddrag

If you build your own, I imagine you wouldn't be hardening the gears. That's definitely something to consider, since most differentials (including the HPI I believe) have hardened gears, increasing their durability.

Let's say we decided to build our own using either 20t or 25t 20DP carbon steel miter gears from SDP-SI inside a CNC milled aluminum housing. If we put this differential higher up (stage wise) in the gearbox, thus limiting the total torque each gear sees, could we avoid needing to harden the gears? Do all the teams who use coaxial swerve drives harden their gears?

I understand the theory behind hardening, but are there any gearheads out there that have achieved acceptable results at flame hardening things by using a garage oxyacetylene torch and quenching in plain water? Or is this just a disaster waiting to happen?

[Manoel]

Originally Posted by sanddrag

It might be something where there is a brake on each side, to determine which side power goes to. Just a guess....

If that's the case, may I suggest two one-way bearings, one on each axis, so that when the motor turns one way mechanism (a) is attached and, when turning the other way, mechanism (b) rotates? Of course, that only works if your mechanisms are only meant to rotate in one direction. Ours are!