CIM Reduction?

[Joe_Widen]

http://us.st12.yimg.com/us.st.yimg.c..._2042_15328105

This piece needs to have be reamed to 0.3105-0.3110. Then it will fit with the cim.

These are the directions take directly from the website

Modification for CIM Motor input
1. The bore of the Sun Gear of the AM Planetary needs to be reamed to 0.3105-0.3110 for a press fit onto the CIM motor shaft (we do not offer this part)
2. The end of the CIM Motor shaft, sticking out past the Sun Gear needs to be cut off
3. The cap plate on the AM Planetary needs to be flipped over so that the 3 counterbore holes for the #10-32 mounting screws are facing outward.
4. The cap plate needs to be mounted to the AM Planetary before the CIM Motor is mounted.

And

Originally Posted by Johnny

AndyMark also sells a planetary gear box for the CIM. From my experience, it's much easier just to buy the one from AndyMark then it is to make the fittings for the CIM to the FP gearbox. it is, however, kind of expensive(120$).

If I read this correctly, the OP has already bought the gearbox and wasn't satisfied with the fischer price, so he'd like to convert it for it to be usable with a cim. Otherwise your right, definately save yourself the time and buy the AM Cim Planetary.