i am pretty sure that this can be done with any helicopter that can be taken apart.
Step 1: Gather ing the materials.
the materials are;
1.old rc helicopter
(these are from the heli)
2.the battery recharger
3.the rechargable battery
4.the motor(it needs to have a metal gear)
5.the control panel+antenna
6.the remote control(not in pic)
Step 2: Assembly #1
you need to make sure that the 2 plugs can connect after taping.
Step 3: Assembly #2
after taping , connect the wire from the motor into the slot.
Step 4: Finishing up
then hook up the battery.
there u go!
Step 5: Using it
turn on the remote control and the grinder, and rev it up!