Making Your Own Differentials


I’ve been studying differentials for a couple months or so, and now have an idea of how most of them work. I know vex has come out with a differential kit, but I thought anyways it would be nice to make my OWN differential with VEX parts. What really encouraged me was Electron John’s post. I have been trying to make a Torsen (torque sensing) differential with the worm gears, but have had no success (so far). On the sides of the case, I decided to attach on one side, a gear (through the mounting holes), and the other side, a sprocket (thanks EJ). Well since the torsen isn’t working out for me too well, I just made a case for a open/limited slip differential (just like the one VEX has out in the advanced gear kit) and have the 60 tooth gear and the 40 tooth sprocket on each side. All i have left is to find ONE 6-32 3/4 in. hex screw and a drill press, to drill holes in the axle holes in the gear and sprocket.

The case I have made is very small, and compact, but not really “light weight” like VEX’s. The really important thing i’m trying to get across is that the VEX kit is VERY versatile, and if you’re clever enough, you can find solutions for your own problems with just some extra parts.

(Hint: Since the Advanced gear kit comes with ONE differential frame and 7 bevel gears, making your own differential on top of using vex’s would save you a good $20, while learning a little something.((if you want to know why using 2 differentials would be useful, see JVN’s [Differential trike)) ).

Anyways, by tomorrow, this thing should be done, and I will have pictures up. I hope you like it.

(i talk a lot)](“”)

Here it is!

Custom Limited Slip Differential