Omniwheel Mount for Tamiya 72001 Planetary Gearbox Kit

This is the wheel mount for mounting my omniwheel (http://www.thingiverse.com/thing:456224) to Tamiya 72001 Planetary Gearbox Kit.
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Use M3 screw to mount the wheel.
The hole for connecting to the wheel is having diameter of 2.5mm, you can :
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1. Use tapping screw to fix the wheel.
2. Use Screw tap to process the wheel mount first, then mount the wheel to the wheel mount by normal M3 screw.
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