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Step 4Drive motors, modding.
If you do choose to go with cordless drills, they will require a bit of hacking to work as balancing vehicle motors. Mainly, this involves getting direct access to the two motor terminals. The drill's motor controller, as nice as it may be, can't do four-quadrant (reversible) motor control, which is required for this project.
The mod is pretty quick: After opening the drill case (you will need a Torx driver for the DeWalt case), disconnect the motor leads from the trigger controller. File down a slot in the two halves of the case through which these leads can be passed. Then, reassemble.
The mod is pretty quick: After opening the drill case (you will need a Torx driver for the DeWalt case), disconnect the motor leads from the trigger controller. File down a slot in the two halves of the case through which these leads can be passed. Then, reassemble.
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