pic: 3 CIM WCD Ball Shifter CAD

[Bryce2471]

Originally Posted by nathannfm

This sounds like a good idea but I would caution that you should know the tolerances of that boss and the tolerances of the equipment used to cut the hole in the plate. We made our first waterjet part ever a few weeks ago with a 0.750" hole for the boss and suprise suprise it comes back and the CIM won't fit.

Thanks for the heads up.

Would this be all steel? I know the ball capture area is steel on the VexPro model presumably for wear reasons. Also, I know it would be pretty difficult to machine but I would recommend a fillet at the hex to round transition as that looks like its a pretty big stress riser.

The vex pro website says that ball shifter shafts are 7075-T6 aluminum.

Related to this component, if you make the hex shaft attach to the ball shifter with a pin or through bolt instead of making it one part it would make removal of the gearbox pretty simple.

I considered this, but I didn't want to cut a negative hex into the end of the shaft.