322 Three speed transmission.

[dkeith]

I found this picture of our transmission for those who didn't get a chance to see it at the Nationals. The picture doesn't show the cylinders used to move the shift levers. The transmission is actually a four speed but two of the speeds are the same. Next year we may use all four speeds depending on what the game is or remove one stage and just make it a two speed.

[Dreistul]

Any chance you can provide more detail? what's inside those stages?

[purplehaze357]

do you have CAD drawings of this?

[Andy Baker]

I'm still trying to figure out how this thing works also. It looks like the right and left sides are independent from each other and are simply mirror images. Also, it looks like the gears might shift on the fly.

What I don't understand is how the power gets transferred from the first (inside) stage to the second (outside) stage.

dkeith, can you throw us a bone here?

Andy B.

WHOOA!

Now thats sweet

Its hard to tell much of anything from that picture...Any chance of 322 comming to IRI so you can show it off? I really want to see that puppy in action

[dkeith]

Here is a screen shot from AutoCad inventor. This picture shows the motor mount case and the gear configuration. All the case does is let me fit the motors in the robot. The transmission was wide enough that the motors had to be placed parallel to the transmission. The large gear is used to transmitt the motor power to the transmission while keeping the motor clear of the transmission case. The stepped piece is the Attwood gear drawn with no detail to make the design go quicker. The gear shown closest to the camera is the transmission input gear.
Yes, I have prints for everything drawn in Autocad Inventor. This is a very nice program. Inventor allowed me to turn gears and move shifters and see what would happen as well as keep track of weight. I had used Unigraphics before so the transistion to this 3-D package when fairly smooth.

[Rob Colatutto]

obviously he didn't draw them....since its called AutoDesk Inventor....AutoCad is an entirely different program made by AutoDesk

[ReijiH]

Hmm, it would be nice if you could provide the cut away pic of the entire gear assembly? That is, if it's not your "trade secret"

[Dan 550]

Is that a miniaturized version of the tranny at the rear of ther new "superbly manuverable" John Deere small lawn tractors???