Fun Projects for your LEGO® MINDSTORMS® NXT!
|Start by building the 3-Motor Chassis. Click the picture for building instructions.|
|You can temporarily remove the wires from ports B and C to make it easier to attach these parts.|
|Replace the B and C wires if you removed them.|
|Repeat this step to build two copies.|
|Align the slits in all of the parts together as shown. This will ensure that the string loops over the smooth part of the center bushing.|
|Use about 20 inches (50 cm) of kite string or other thin string. This is the same length as one of the longest NXT wires including the connectors.|
|Tie one end of the string to one peg of the motor winder and the other end to the center hole of the beam.|
|Use the gears on the motor winder to wind a couple of turns of string by hand so that string comes out on the bottom of the winder, then route the end with the beam up and over the top bar, as shown below.|
Pick the model up, insert the lift platform into the vertical channels from below, then slide it up and attach it to the beam on the end of the string, as shown below.
|Use a medium-length (35 cm) wire to attach the ultrasonic sensor to port 4 on the NXT, and route the wire out of the way as shown below.|
|(Optional) Create some other things for the forklift to carry. Some ideas are shown below.|
The Forklift_Test program is an example of an autonomous (not remote-controlled) task for the forklift, using a combination of rotation sensors and the ultrasonic sensor. See the instructions below to set up this task.
The Forklift can also be operated by Bluetooth remote control from either your PC or another NXT. If you have a working Bluetooth connection between a Microsoft Windows-based computer and your NXT (you can download programs to the NXT by Bluetooth instead of using the USB cable), then you can use this Bluetooth Vehicle Remote program written by Anders Søborg to control the Forklift using the keyboard or mouse on your computer. See the instructions below to set it up for the Forklift.
If you have two NXTs, see the Dial Remote Control project to control the Forklift from an NXT-based wireless (Bluetooth) remote control.
How to Set up for the "Forklift Test" program
The Forklift_Test program is an autonomous NXT program that can be used without Bluetooth remote control. It will make the forklift lift the load of tires and place it on top of a platform by itself. The starting position for this task is as shown below.
How to Use Bluetooth Remote Control from another NXT
If you have two NXTs, see the Dial Remote Control project to see how you can build a remote control with your other NXT that can use to control the Forklift.
2007-2011 by Dave Parker. All rights reserved.