pic: Team 948 2-Speed Ball-Shifting Gearbox CAD Drawing

[Greg Needel]

Originally Posted by Athleticgirl389

I never would have thought of having a 2-speed for shooting. That is very creative!!! Great job on the inventor there! I am new to inventor myself... learning quite quickly... hopefully I can something that kool one day haha. But I am very impressed!!!

Who said this was for the shooter?

Be wary, you must machine everything perfectly, otherwise it will shred itself. 114 built one of these last year, and had far too much fun with it, until we realized we had no weight for the pneumatics. However, during the offseason, this is a great shifting system. I encourage you to keep playing with the design.

Another tip is on the shifting plunger, you may want to mount springs on the part that forces the balls out, to reduce wear on the part. This is due to the fact that it needs to be able to lag until the balls line up with the grooves in the gear.


Good luck, and I highly reccomend this type of drive system!

[David Guzman]

I was looking at the Inventor files and it shows the shaft that is connected to the piston and the piece that pushes the bearings as two separate pieces. However it shows that the shaft that goes to the piston has a recessed and the piece that pushes the bearings has an ID equal to the diameter of the recessed. I hope that is understandable.

Anyway my question is how are you going to insert one in the other?